Hey friends, First and foremost, I want to say thank you for watching this video. You could be doing anything else in the world with your time, so I sincerely appreciate the time you spent here with me. In all honestly, I think this video is crap. It's too long, covers too many topics, and covers those topics rather poorly (except for the Hero Me part? (maybe??)). I spent a lot of time trying new editing techniques, learning to animate, and just getting the actual project done. I recently graduated from school, am about to get married, and will be starting a new job in about a month which has proven to be a lot to juggle even without having to worry about TH-cam. I've been working on this video somewhat consistently for a little over 2 months and had reached the point where I was overwhelmed and just wanted it to be over with. So, I got it done and posted it (obviously). While I hate this video, it has not disuaded me from continuing to make TH-cam videos. In fact, I've learned a lot about myself that I believe will help the channel moving forward. 1. I'm no longer going to make content because I think it will get clicks. I'm only going to do projects that I enjoy personally and want to share with you all. 2. I'm no longer going to edit my videos with audience retention in mind. I'm going to edit so that the video is clear and concise, entertaining, and fun for me... 3. I'm no logner going to think that video quality comes from editing. Video quality ultimately comes from the quality of the project or presentation of a topic. From now on, this will be my focus. 4. This is the final video I will ever post, that I did not enjoy making the whole way. Forgive me for this full diaper of a video, it will be the last of its kind. From now on, I will make sure that my video start from a solid project, and that my focus is the value that it can bring you all. I no longer have time to focus on time consuming (yet amusing to me) edits as there's no way to keep quality content flowing while I begin the life of having a full-time job. Maybe one day I can hire an editor, but for now, it's not happening. Anyway, ramble over. I hope to see you in the next video. Sincerely, Spencer P.S. I'm really excited for the next video that I'll be making. It's going to be about linear rails and bed slingers. Is there anything you think would be cool for me to look at? Let me know!
that comment alone should earn a sub. Thanks for the like on my comment in the previous video, it was SO good I literally forgot to subscribe back then
Damn, i think that's quite ruff on yourself - i think the details on how different choices of cooling speed were very interesting The only thing i didn't really like was that i think the bass-y transition sound was a bit unusual 😅 I fully understand not wanting to make videos for the sake of e.g. clicks though, i've heard it's an unhealthy mindset and have experienced similar with posting memes, even with it being much lower effort As for linear rails and bed slingers: I'm interested in the concept of using just a simple pipe in a pipe for it, with something to stabilise rotation around the pipe :P
Don't be that hard on yourself. Take the stuff you don't like or f'ed up and learn from it. Don't worry about it, but take the experience and make yourself better, then you were yesterday. And I do disagree, the video was quite enjoyable and informative.
don't be so hard on yourself. this is a really good video. i wish it was around when i was new to 3d printing, it would've saved me SO much time trying to understand each of the topics you covered. really appreciate this. subbed
Havent seen the video duration when clicking. I was so happy to see I still got almost 40 minutes of things to learn and think about left after the first AD break😮🎉❤
I don’t mind long videos if they are informative. What I hate is when people repeat themselves and just blab about stuff way off topic. This was a very informative video. Perhaps it could have been broken up into fundamentals of part cooling and installing the hero me system but I would have clicked the next section anyway. Very helpful. I thought I wanted this system but I hate how it blocks my view of the print head. I like to watch it lay down the first layer but would have to tilt my head way down to see it lol.
We can also help by telling him WE LOVE THIS. So how about making a normal long form video like we have here, and a shortish one that is heavily edited to have only highlights. Link them both to each other and let your audience decide how much time they have
You came out of NOWHERE and producing INCREDIBLE content right out of the gate. TH-cam is far too saturated with 3D printing channels that focus on products; a channel focusing on concepts and engineering has been much needed. I CANT WAIT to see your next video.
⚠️⚠️Noctua does now make a 40x10mm 24 volt fan it's perfect for printers!⚠️⚠️ It even comes with a low noise adapter to reduce its RPM if it's cooling well enough already
Awesome video. Halfway through so far and just want to say I enjoy the "rolls of PLA" currency. "I bought this soldering iron for the cost of 3 rolls of PLA" fantastic.
Haha, I love using other ways to look at money. When wedding planning over the last few months, I started to think in “this venue doesn’t cost $10,000” it’s “$2500 per hour” which is rather sobering. (these are not real numbers, I do not have that kind of money😂) Thanks for your comment!
@@SpencersDesk "honey, I bought another 3d printer" "what?why? How much did that cost?" "Only 1/50 wedding venues” "oh... Ok, I guess that's not too bad"😂 this might just be crazy enough to work. Congrats on getting engaged
A couple years back I used to be more interested in upgrading my 3D printer and such, and I tried the Hero Me system. It was pretty good. Well put together and designed. I don't remember how long I ran it for but it was probably a year or so. When I upgraded to an E3D V6 hotend, I started to have issues. Maybe it was the fan, but I started to get heat creep issues. I changed to Petsfang which had a lot more room for airflow around the coldend heat sink and my heat creep issues went away. The biggest issue I've had with these sorts of cooling upgrades is actually too much cooling. Dual 5015 fans blow a lot of air, and I've run into issues with extrusion, which I believe were caused by the part cooling fan cooling the nozzle too much. Moving to lower fan speeds and higher nozzle temperatures has helped this issue and I haven't run into it for a while. For PLA I run 215 C on the nozzle (0.6mm) and 50% part cooling (up to 80% depending on layer times) and the parts come out pretty strong. Though if I am printing thick and fast I have no issues with cranking the temps as high as 250 C if I feel it needs it.
That’s a really good point! Luckily the design of the mosquito silicone boot covers the sides of the nozzle, so I imagine I’m avoiding the same issue. Other silicone socks don’t seem to be as good though. I’m definitely interested in moving away from the Hero Me in the future, hopefully to my own custom design!
I wonder if someone could design a better PID tuning system that runs the part cooling fan at different speeds, as well as the nozzle at a couple of different temperatures to make a better control for the hotend temperature under different circumstances. Extra ideally it would also be while printing a pieces at different speeds to account for the energy needed to heat the material at different flow rates. I believe you can do something like this but it’s a fair bit of work to do. Automating it would be a lot better
The best thing to do would be to PID tune your hotend at 50% fan speed (or whatever fan speed you were okay with the printer using all the time) and that would allow the hotend to respond appropriately. I think for my setup, with the skirt and the mosquitos being designed so well and having a great silicone boot, the part cooling isn’t affecting it too much
Laminar flow is less efficient for heat transfer, but I believe it's more efficient at power transfer. Basically turbulence creates back pressure on the fans at makes it harder to push as much air.
This is exactly it. I believe at the time I was confused about where the laminar flow was being claimed to be. Maybe I misunderstood some of Andy’s explanations.
I think I'll just blast air at the prints and set up an annealing box if I really need to, probably my old toaster oven with a digital tempurature probe stuck in it to make sure I don't melt the part while tuning the tempurature on the analog dial. I have a new oven, old one doesn't need to be food safe anymore. I use the Mini-Me for my Ender 3 Pro as my current cooling duct, it's not going to be as good as adding aftermarket fans but my print quality has gone way up since I put it on.
Whenever I cut PTFE tube, especially when being used as a 'liner' for a direct drive setup or a holding stub to wedge into the hotend for some bowden hacks, I've found it's super useful to gently ream the ends into a taper with a sharp drill-bit. It's important not to overdo this on the hot-end side, leave a lip all around so it can structurally seat, that side helps with cold-pulls, on the top side, a slightly more aggressive taper, helps keep inserted filament from getting caught on the edge whenever putting a new color in.
I definitely want to do this in the extruder side! I’m hesitant to do it on the hot end side as I don’t know how wide it should be. Also, I think I’ve gotten 1 clog with my mosquito in the entire time I’ve used it. Hopefully the trend continues and I may avoid cold pulls. Thanks for sharing this awesome tip!
@@SpencersDesk on the hot-end side of PTFE, it really 'all depends' on how things were designed to be seated. The main thought I had on that part was if there is any 'squish' on the PTFE, then that opening won't get constricted, but about 1/3rd of the exposed surface area was all I removed. To this day that was still one of the smoothest to load extruders I've ever used, and easiest to cold-pull on a whim. I accidentally created a feature as well, it was perfectly able to extrude filaments, but when pushed past what it could melt, the stepper gently skipped steps instead of chewing the filament up. I only recently realized this means it's actually able to cold-pull itself.
My dude just casually dropping runescape tunes as background music EDIT: AND A CLIP FROM THE GAME (you could've gotten stock footage of sword dipping in water from Giant's Foundry)
I recently found some archives where you can download the entire OSRS playlist! I think there’s even one for all the sfx! I wanted to use the giants foundry but there are surprisingly few gifs of it. The RS side of my will definitely continue to be a theme ;)
You're going to the top of 3d printing community basically immediately. How come u only have 69 views as Im watchng (nice) and a little over 1k subs is so insane.
I recommend the cheap Chinese 80W 980S soldering iron. Costs half a roll of PLA and there's basically nothing to improve on. High power with temperature control makes it useful for everything from hot glue to heavy copper wire. I'll probably buy a second one just to save time switching tips, since I often solder wires and then craft strain reliefs out of hot glue.
I have no suggestions for improvement. I watched the video to the end and I think you have done a great job of explaining things and pointing out when there are options what those options are to the overall design. WELL Done sir or in other words "YOU DID A GOOD JOB" thank you. You have earned a new subscriber and I look forward to your next videos.
Previous versions used things like captive nuts. I think heatset inserts are new to v7, or perhaps v6. Also, my dedicated heatset iron was like $30 including special tips for each bolt size and a stand. You don’t need a superior iron for inserts.
Very good point! How do you like having a dedicated insert press? I thought it’d be tough to use when parts have odd geometries that don’t lay flat. I’d personally recommend a soldering iron as it can extend to electronics work too! I will say, I haven’t put in the time to get heat insert tips (which are compatible with my iron) and just using the iron tip can sometime be problematic!
@@SpencersDesk Sorry - it's a soldering iron dedicated to heatsets, not one of those drillpress-looking things! I just got tired of worrying about getting melted plastic on my "nice" soldering iron. I like using the heatset tips because I can just line things up and not worry about dabbing into the plastic. They're also nice for the periodic part that wants you to push the insert below the surface plane (some Voron inserts want to be a few mm inset). Rolohaun had a nice video this week about using a flat blade to heat, and then a metal block to press flat. I use a random metal bracket I found in the garage for pressing flat.
@@SpencersDesk I don't think TH-cam lets you post links, so the iron I got was Amazon item B08R3515SF ($11.99, 80W soldering iron), heat-set tips item B09VL41T7K ($8.99, "Insert Tips for T18 ST 900M", I think the 900M was the connector type), and the base was B09CT8XT9B ($10.97). I recently saw a recommendation for a kit like B0CSVRY42F (cheap iron with included tips for inserts), and I suspect that would be fine, too. This use case isn't as sensitive as "real" soldering.
My PLA has higher than 60°c GTT. I often bake my PLA to get rid of the moisture at 63°c and it is no where near the transition temp. The material is just warm. Not soft.
I may have misspoke. I think it’s actually around 100C. I also remember most people saying that 45-50 is enough for drying PLA? But anyway, thanks for pointing that out!!
This is a pretty cool concept...the modular build. The negative is it adds a lot of weight with all the screws and inserts and multiple wall thicknesses that would go away if designed as a single piece with a simple snap on cover.
The Hero Me system is pretty cool. It's also one of the lightest. Ive tried quite a few different tool head designs on my bed slinger and settled on the HM. It's Gen 6 or 5 can't remember. Most people will only use the HM on a bed slinger so tool head weight isn't as much of an issue as the bed will always be heavier and the limiting factor for Accel and print speed. If your using this on a core xy then you should probably re think your choice. There are better options, Dragon burner for example.
I thought that the partial air from HeroMe fan duct will hit the silicone sock and that will change the direction of the air flow. And this is why I removed HeroMe gen7.4 from my ender 3 and designed my own fan duct for my own setup. I personally hate Hero Me. BUT this is the only video that explains how to set the part cooling fan settings on Orca slicer (prusa) so thank you! I had no idea how to adjust those min fan max fan settings.
I think the water test I show was enough for me to believe the air is going the correct direction. I do wish, at least in my setup, the the mosquito was turned 90 degrees so the ducts wouldn’t be so close to the silicone sock. I definitely think the hero me isn’t for everyone! I’m personally planning to move away from it when I’ve got time to do some of my own design. I’m glad you got some use from the video!!
It is midnight so I don't have time to watch the whole video, but today I learned that my part cooling was too good. I was getting crazy warping and delamination with PLA at 230 C and it turns out the my blower fans I mounted are cranked WAY too high, I didn't know that could even happen with PLA. I printed test prints at 75,50,25, and 0 percent speed and it turns out the best is 50% with good layer lines and good adhesion. Now I can finally print vase mode.
FWIW, the F in FDM stands for “Fused”. The temperature of the layer below should momentarily reach Tg when the next layer goes down, at least on its outermost 10-30%. If it doesn’t, you’re not extruding hot enough. Annealing at or above Tg makes this more thorough and consistent, as well as “releasing residual stresses” caused by the extruding process, making the part stronger at the expense of possibly altering its geometry. These changes should happen in predictable and repeatable ways, so if you’re making extruded plastic parts, the shape of the hole in your template is different to the final shape. I can’t say I’m an expert on these topics but overall, nice video and story telling. I didn’t expect you to rebuild your whole toolhead from scratch, but sure, why not! Also nice to describe all the extra steps that are needed when you do that to make sure the replaced toolhead works properly.
I always forget it means fused! Haha I definitely had some scope creep on this one. Hoping to not cram so much into one video moving forward! Thanks for your comment and valuable input!
I’d like to add that the pin support challenge isn’t much of a challenge when basic Ender 3’s print it perfectly. I’m not saying they’re sufficient in all areas. I use dual 5015’s myself, but another metric could be used.
I have to agree here completely with this point, I have a OG Ender 3 (albeit heavily modded) and a stock hotend S1 Pro and both print the pin without any issue. Neither have much modifications to part cooling and the S1 really has none at all
Good video. On the laminar flow topic, that would pertain to the flow inside the ducting. Once the air leaves the duct and starts to run into things, it will quickly turn into turbulent flow. The laminar flow inside the duct will definitely increase output of air at the nozzle. While I'm not a cooling expert, I am a Mechanical Engineer. We had to study this topic in fluid power and thermodynamics. Using a flow software such as Ansys would show the improvement to output. I know there are some alternatives and even a free online software that Teaching Tech has a video about how to use it.
Yeah, I’m just a baby, perspective ME but I’ve been trying to create “laminar” flow for a laser nozzle but it’s been, challenging. In order to achieve laminar flow (sub 2k Reynolds Number) at the current flow rate, the nozzle orifice would have to be 70mm, rather than 2mm. I’m just shooting for MORE laminar flow though, and there’s already a massive amount of improvement with the nozzle designed by Nervous System. I’m now trying to constrain the paths more and design based on air characteristics rather than water in the super soaker based design. All that to say, fluid dynamics is hard :(
Thanks for the great info! I now know the laminar flow refers to inside the ducts. I do still wish I could see some simulation/know how important the laminar flow is in these context!
Chapter 1 is all informative and educational. And then I am introduced to a rather complicated (though very cool) project? I thought you're gonna teach me how to make my current setup cool well😅
I love the HeroMe fan system and have used it for many years. I just got my new hand-built printer all set up with the Gen 7 and I absolutely love it! I don't agree with the weight being heavier as my Gen 7 I printed is lighter than any other system I could find. I also believe the way the air comes out of the vents is smoother than any fan system I have ever seen. Good video!
That's so cool! I wish I could build/design my own printer. Have you got a video on it? if I remember correctly, my point about the weight was the weight itself, but the way it is distributed in space. The HeroMe is very bulky which causes additional torque, in theory, but maybe not in a meaningful way. It's of course a product of designing a system for every printer ever. I definitely love the HeroMe system. Hopefully I can't print it one day with great print quality and awesome filament. Thank you for your support!
My bone stock Ender3v2 can do the pin support challenge no problem, even the sphere. Only tried it with PLA tho. Overhangs at 65° look really solid. I'm considering switching to the Mini Satsana cuz it's super simple and doesn't need extra parts. Hopefully the bi-directional cooling is an actual improvement over stock.
Hey, as for the soldering you did here 23:46 - I don't even own a soldering iron (yet), but on "college" we learn to solder somewhat. AFAIK you are meant to put the cable on the metal pad and heat both at the same time, and then put the solder wire on so it melts right on top. If you heat the wire on the air, it (sometimes) creates blobs. Cheers!
This is definitely the ideal way to do it. In practice, it's often quite difficult to do it though. After the amount of coffee I consume, I find it very hard to keep steady, haha!
nice, I plan on building the same toolhead for my ender 3. I kept trying to find a solid video that goes in depth about the hero me gen setup and did just that!
Excellent video! I tried previously to use the HeroMe 7 on my BIQU B1, and has similar experience to yours. Bulky, difficult to assemble, not aesthetically pleasing, etc. Ended up modeling my own cooling ducts that fit the original metal hotend case, and managed to replace the small-ish original fans with the blower type ones. It most probably has the exact same cooling performance as the HeroMe, but it's much more compact, and uses the original sturdy metal mount to the rail instead of the plastic HeroMe one. Also made an adapter to fit the Orbiter v1 that I had laying around. So I could say the best thing about HeroMe is that it inspired me to get the same thing by "investing" into modeling my own thing for a couple of days. Which is why it has a respectable place on a shelf next to my very first voron cube and the very first afterburner (from a V2.4 I once built).
I’m definitely a lover of the hero me for the same reason. The gen 5 was the first mod I’ve ever done to my printer. I’m sure it has been the diving board for lots of others getting into the world of modeling and modding. I personally will always prefer something that inspires to something that works a little better. Thanks for sharing your experience!
Someone's probably already said it, but I can't find anyone saying it, so I'm going to: Hero Me Gen 5 (and maybe 6, I dont remember when he switched to heat press inserts...) uses captive nuts, just like you suggested. it's still readily available on all the major 3d printable file hosting siites.
lol, that Hero Me guy has the polar opposite design sense as me :) I obsessively make everything compact and lightweight with as few parts as possible, and use coarse threaded screws into the plastic (like almost every injection molded thing ever made) instead of the fiddly and heavy heat inserts.
Part of making something modular is sacrificing all of the optimizations unfortunately :/ I’m right there with you though, I’d be trying to make my print head perfect. I hadn’t heard of using coarse thread screws! Can you still unscrew and screw things multiple times or do the holes wear out?
@@SpencersDesk Fine threads wear out quickly, especially in PLA, but coarse threads last a long time. Just be careful to locate the existing thread when screwing back in. I rotate the screw backward until I feel a little click as it drops into the thread. If you ever do strip it, put epoxy in the hole, coat the screw in grease and then epoxy, and stick it in. The epoxy forms perfectly fitted threads, and the grease prevents bonding to the metal so you can still unscrew it. Good for wood too, especially if you need to screw into endgrain which strips easily.
Personally, I’d prefer the more common screws and love heat inserts. Never have I felt like extruder weight was what’s holding me back, usually cooling or maximum volumetric flow rates.
Thanks, man. I not into the HeroMe, because of the overhang to the front of the mounting point and the fact that with 2 big fans the center of mass is shifted so far out. I personally have the Spriteburner on my ender 3 s1, one 5015 right above the extruder motor. That's enough for me, on 100% its enough for petg bridging. For the rest, about 50-60% is fine. It looks janky, but that's okay 😊 Appreciate the time you put into testing and explaining, thanks for that. I did learn quite a bit here 👍
I’m not a huge fan of the bulkiness of the print head either. I’d like to design my own print head, moving to a Bowden style extruder probably. Swapping the touch for a clicky probe. Having a single part cooling fan, which I’ve got a special idea for. Until then, it’ll stick around!
Hmm... A "tall load" will/could apply more "torque load" when moving the head in "XY" movements than if You have the "load" at the same height as the print head. If I'm not mistaken the "torque" depends on where the "load" is in relation to the "fixed point" that is loaded during the acceleration...What I'm trying to say is that a "wide design" isn't necessarily worse than a "tall one" with regards to the amount of load it applies to the printer... It depends on the whole design.. Best regards...
Yes, you’re exactly right. I mention in the description that I cut a lot of footage out of the final video. Some of that was a more in depth explanation about torque. If your torque being applied in the clockwise direction is equal to the counter direction, there will be no net torque. I’m not 100% sure, but I assume the voron designers did their best to balance it around the mounting point. Unfortunately for the Hero Me system, it would be a mountain of work to make sure that every single configuration is balanced in any way. I personally don’t think it would be useful in high speed situations where those things matter as much
Interesting vid! Thanks for your thoughts. Ive been using the HM on my ender 3 v2 clone for a couple years now and its quite good. Not as rigid as some other designs but I think some of that is due to way the linear rail is mounted on my machine. I have a single 5015 feeding a dual duct and it can easily over cool the print. The amount of cooling required is dependant on what the motion system of your printer is capable of, up to the point where the properties and behaviour of the plastic start to define the limitations. I think there is to much focus on speed within the 3d printing community. Speed doesnt = better. It'll wear out your printer faster and your slicer tune has to be on point. That said i highly recomment people explore the speed print rabbit hole. Its a highly educational experience and you will gain a deep understanding of your printer, slicer and the plastics your using.
I definitely agree with you. I think if you’re printing for quality, you really only need the one fan worth of cooling. If you’re going for extreme speeds, you’re going to want CPAP and auxiliary or something. Or maybe, you just want to print as fast as possible without being a speed printer, maybe that’s the sweet spot the dual fan lives in.
Interesting. I just ordered a big pack of inserts and a dedicated setting tip for my iron a few hours before finding this video. Unsure if I'll go this route with the new hotend I ordered though
Pinecil or similar are also valid offerings for the same price or less. Soldering irons are becoming more accessible, and it's a wonderful thing. Sea Shanty 2 is the only choice, btw.
I’ve had my eye on the pinecil for a while! I’m glad they are more accessible. Such a valuable skill to have from car maintenance to fixing stuff around the house. Hehe glad people notice the music
An impromptu alternative to silicone sock is to simply wrap your hotend (if you don't intend to print much above 260°C) in Kapton tape. If you push it too far, it might carbonise but the outgassing is probably not particularly poisonous, unlike Teflon. Also pay attention that what you got is actual polyimide tape, not brown-tinted PET tape, which is something unscrupulous sellers now do. The PET tape, when you heat it up, it melts and shrinks, while Kapton/polyimide will not shrink or melt. What can happen with good part cooling if you don't have any thermal insulation on your hotend, is also that the amount of heat pumped into the hotend is so high that the heat wanders up the throat, which will cause clogs. Whether this happens, or whether you get thermal error from the firmware, depends on your PID tune and your heater power relative to how much filament you're pushing through. 40W and slow printing is easily sufficient to cause heat rising. An interesting filament material is HIPS, it is very cheap and lightweight and prints very easily even open frame with good dimensionality and fair (not perfect) layer adhesion and doesn't tend to warp, and it has temperature resistance somewhere between that of PETG and ABS/ASA. Something to keep in mind is that HIPS, ABS and ASA are not naturally flame retardant, unlike PETG. The slim fan being "just as quiet" as Noctua for sure has less airflow. But if it suffices, it suffices. Also you might want to stock up on smaller voltage step-down boards, like Mini360. I suggest thinking twice before using CA glue on electronics. Sure electrically it's fine (when arc flash is not a hazard), but if you ever have to rework the board, you need to keep in mind to solvent wash it off thoroughly or you'll be breathing in horrible poison once you start soldering; and you might struggle washing off CA without also washing off the wire insulation. Kafuter silicone is good to have. Epoxy is good too. Dropping a tiny length of filament on the edge and then fixing it with a soldering iron is valid in my opinion, just don't forget to tin and clean the tip right afterward to wash off all the junk. I do think near-laminar flow is potentially of advantage, since you don't want to cool everything, just the bead that has just exited the nozzle. Most turbulent setups will just send air every which way. You probably want a little turbulence but not much.
Thanks for all the wisdom! I definitely prefer silicone socks as you can take them off for cleaning and higher temp filament. But using Kapton on the print bed sounds like a solid idea! I’d never heard of HIPS. Is there any advantage to it that makes it better than the others? Is there something bad about it that has made it less popular? I’d looked for 24V to 12V step down boards but I could only ever find larger buck converters. I’ll look into the 360!
@@SpencersDesk I just noticed that the Mini360 is not intended to be used with 24V. Absolute Maximum Rating is 26V input but 24V is JUST outside the recommended voltage range, accounting for tolerances. Whoops :D MP1584 is recommended for 24V inputs (AMR is 30V), the boards come out just slightly bigger due to external diode. HIPS? It's very pretty and very well behaved while having a fairly high temperature resistance, and being an order of magnitude less stinky than ABS. I don't have the budget for ASA, i absolutely hate ABS, but i have been having a lot of fun with HIPS. Everyone who actually used it says it's a highly underrated material. It's got support material stigma attached to it, since it's usual purpose is as dissolvable supports for ABS, since it's easily dissolved in limonene but ABS isn't. But it prints so nicely that it's a shame not to print it!
Great video! Our algorithmic overlord offered it out of the blue and I was not disappointed. There are SO MANY rabbit holes to fall into when it comes to 3D printing...
Dude, while the video was longish it also covered a lot of stuff. Even though I knew most of them I kept watching as you very nicely cover everything about cooling there is. The point I'm trying to make, your doing well. Sure it could be better, but one can always say that about anything. Now regaring possible areas of improvements, I think this would also work as a multiple part series. I any case, keep up the good work!
For anyone buying a soldering iron, considering getting a pinecil instead. It's around $25 and it's better then most irons in every way. Also you can buy a tool from CNC kitchen that also fits into this made for heat inserts. It's open source as well, can be used with USB-PD.
You should consider whether a Bowden or DD is more worth it for you A DD adds so much to parts complexity, weight and resonance to the toolhead for pretty minimal gains unless you're printing extremely picky filaments
I’m definitely planning on it! I think when I started printing I got this idea in my head that Bowden was just a cheaper way for manufacturers to manufacture. But these days I’m planning on the Bowden! I don’t have many plans on printing with flexible or anything, so there shouldn’t be any major loss.
@@riba2233 Aside from all Ive mentioned the only additional benefits I can think of are Less filament flex, better nozzle pressure. What other gains can you think of? Theyre nice for 50mm/s odd material types of printing, but far far worse for higher speed printing. I personally print at 15K Accel, 350mm/s.
@@RyLo18D pressure control is abysmal, around 20x worse than on DD so you can forget about any kind of nice results while printing faster. No problems of printing below 50mms ofc, agreed on that one. But now that we have sub 140g DD extruders (stepper included) I don't see the point of bowden, just not worth it imho
That’s a good point. I wonder what works better… the faster printing would maybe leave less time to sag/make the temperature of the plastic a little lower… something to look into!
I'm using Bull's eye, it is similar style but with one fan instead of two. Not perfect, at times i would need more power but for 99% of the time, it is just fine with one stock ender3 fan and two ducts.
@@SpencersDesk I'm not that versed on fan tech that i know from memory, but i'm guessing: no. It is the original ender3 fan. I did do the "plate of water" test, it is better than the stock fan duct for sure, nice fairly symmetric pattern.
Chemist here (PhD), just needing to clarify a thing: our common filament plastics can not form hydrogen bonds with each other. For this you would need hetero-atom bound hydrogens (like OH, NH, or similar), acting as so-called hydrogen-donors. The oxygens in PLA and PETG and Nylon (which also contains N) can act as hydrogen-acceptors, but seeing there is no donor in the base molecule, this kind of intermolecular force is not applicable here. I would rather argue that we primarily see Van-Der-Waals forces and pi-pi-bonding. 7:54
Oof what an oversight on my part. Thanks for clarifying! Pi-pi bonding is a form of covalent bonding right? I forgot that if it were only hydrogen and van der waals that it probably wouldn’t be a solid at room temp
@@SpencersDesk ah I think it’s alright for the general public. Pi-pi bonding is a form of non-covalent interaction between (you guessed it) pi-orbitals. There’s also dipole-dipole interaction as well as dipole-induced dipole interaction, which probably play a greater role overall now that I’ve looked into it a bit closer
Ohh you just woke up the part of my brain responsible for remembering dipole interactions… I was relying a little too much on my memory and not actually putting in the research… But again, won’t happen in future videos.. Thanks again for sharing your wisdom!
The data sheets show they push about the same amount of air. I think the culprit is the fan guard on the noctua! Another commenter told me that noctua has made 4x10 fans at 24V for 3d printing so that’s the direction I’m going!
Bro!!! Your intro is hot. I can tell you spent good time on it.vWithin the first 2 minutes of this vid you got my subscribe. Love it. Keep it up and please stay connected to the community
My own solution: I stopped printing PLA. no more parts cooling needed, less wires, less volume around the hotend, and less weight :) I used a hero me before though, and it worked great.
@@SpencersDesk I am mostly using PETG, with a little ABS and ASA when I need more rigidity. I do have issues with PETG and overhangs without supports nor cooling above a 45 degree angle though. Right now I am printing 3" tubes with various angles and length to model a turbo downpipe (with merging external wastegate). That way I can order the right stainless tubes and bends :) I managed to print at 150mm/s with cheap PETG, so that a win :D
You would believe the face palm I did after finding this out. I may be wrong but I think they only recently started producing the 24V fans. Thanks for the heads up!
English is not my first language so my words might be straight forward. Great start in the beginning --> After you explained the principle of print cooling, I thought, your direction will be research in detail about "good cooling is the just enough amount of cooling, no more no less" as this would be very intersting. About 50% of the video is actually about assembly of Hero Me system --- this is also good --- during the watching I was wondering --> Why is this guy building a hero me system where nowadays people are building Stealthburner or even Dragon burner, toolhead with cpap (you also mentioned it). Maybe I missed it, but seems there's not too much explaination of why you chose herome vs. the current "trendy toolhead" ---》 since you can print ASA, pretty much you can do it. They all have similar princinple --- having 2 bigger part cooling fan. But dragon burner / XOL or other toolhead is likely to have lighter weight and more compact design. You clearly put into a lot of effort into it, I also saw your "rambling comment" --- above is just my 2 cents when watching you video. cheers.
Thanks for your wonderful comment! I believe I chose the HM7 because I was somewhat familiar with it already. I think it’s easily accessible to a lot of people as well rather than the others which I think you’d have to design custom mounts for. In the future, I actually plan on designing my own printhead as well!
Do yourself a favor and buy a set of feeler gauges and use those to set your Z offset. You want to be just touching the feeler gauge and then you can subtract the thickness of the gauge (I use the 0.3 on my set because its easier to see.) when you configure your Z-offset and then your printer knows EXACTLY where the bed is and you wont have to eyeball anything.
I’m personally part of the school of thought that believes Z offset is better done visually. My reference is Ellis’s 3d tuning guide. I’m also not sure how gauges work on a textured bed? I just don’t know what z offset leads to a perfect first layer. If I knew it was .2 mm or something, I’d definitely go with your method!
While I respect the work and research of the hero me contraption I have always thought it looked too bulky and overboard for what it does. I like simple designs, this is the complete opposite.
I definitely agree on the design side. But, when designing for use with some many different printers and components, it makes sense! I personally want to design my own print head when I get the spare time!
IMO Slicers are still archaic in how they make overhangs - I think it'd be possible to generate Gcode that fits overhanging better and make prints even better.
I believe Thomas from made with layers or Stefan at CNC kitchen made a video when layers are printer like the horizontal bits on the sphere pin test I showed. Looked really cool, but I forget where it’s at in development
Base looks like printed from PETG with 0.8mm nozzles and without cooling. It should be printed with much better quality, to make real use of air stream instead of blocking it with all these blobs, strings and non-smooths. "Fan Booster" printed in quality shown on video, is more a blocker than a booster. Teh same goes for internals of ducts. Perfect should be smooth. Good results can be achieved with ASA/ABS and acetone. Not really need for acetone chamber. Just put the duct into the acetone for 20 seconts, grabbing by a part (let's say mount) that doesn't have to be smoothed. Dry it and repeat. We tested literally the same set of ducts before and after smoothing, with the same gcode, and differences were visible for overhangs and small parts.
I love the smoothing idea! I printed the ducts with the recommended settings from Andy. The Prusa Mini doesn't have the best cooling which lead to some blobs. Once I have the capability to print in better quality, I definitely will!
@@SpencersDesk Almost no printer have the factory duct even close to optimal. And "recommended settings", better not comment. They're at the same time conservative (thus slow) and also far from being optimal. Good luck with your own, smoothed ducts.
Chapter 1 is great and I enjoyed it. Chapter 2, however, is way too specific and instructional and in the end it was hard to understand what's so great about the system.
Haha, yeah, this video was a few different topics that I kinda slammed into one. I'm still in that new TH-camr phase (and probably will be for a while)
I love my hero me setup that I just put together about a week ago. I just don't get why all those led mounts (the one you used included) block so much of the view of the hotend. Kinda counterintuitive to add lights so you can see better but then block the view with those lights 😅. I'll probably design my own light mount that will sit at the sides instead of in the way.
Haha yeah I also noticed this. I’m unlikely to use that mount either. That’s an issue with the HeroMe, it can do just about everything, but it’s not REALLY good at anything (except the cooling). Thanks for your comment!
@@SpencersDesk yeah there's definitely compromises but it's totally understandable for such a modular system. Luckily the extra weight isn't much of an issue on a bedslinger.
Dude you had me tripping. @ 3:40 when the runescape Al Kharid music started playing because im playing osrs and running around thinking WTF is this music coming from hahaha!
Personally, I don’t think I’d use the hero me system with a prusa printer. They’re very nice machines. I think you’d be better suited with a prusa specific mod! Why do you want to use the hero me?
@@SpencersDesk sometimes I get a layer curling on a small sharp corner that is above the first layer, some edges or angles/corners have different shrinkage and makes that section weird looking and not sharp, not sharp sharp, but a clean edge not getting a clean edge on some areas.
Hola mi amigo. Me gustaría tener subtítulos en español en mis videos, pero… No tengo la confianza suficiente para comprobarlos. Me sentiría mal poniéndolos en Google Translate y siguiendo adelante. Cuál es tu opinion sobre eso?
As far as length and detail ... it works for me! But, yeah, I can see that it might limit viewership. IMHO this is a good long-term investment which should still have relevance in a few years, so it might have a pretty long tail. I guess it's the kind of thing where you need to find a good compromise on your investment in scripting and editing. It's possible you could break it into parts, but I think as it is it had a pretty reasonable flow with each step building up to something. It's also hard to make good standalone parts that also work as a playlist :-).
You kinda nailed my inner turmoil on the head. It’s weird to play the TH-cam game because it feel disingenuous, but you have to play it for people to see the content. You can make the most valuable videos and have them seen by nobody. Watching back after posting, I actually felt okay about what I’d created. I think I just kinda lost the plot and needed to move on. Thanks for your kind words, and it’s nice to see you under another video!
@SpencersDesk Spencer, Thanks ever so much for creating this video! I only just today learned about it from a friend of mine. I very much appreciate all the effort you put into it. The detail on each issue related to part cooling, how to go about selecting and assembling the Hero Me, and your honest opinion of what you think of the Hero Me. Note to everyone else who may be reading this, to my knowledge, Spencer and I have never talked to each other, or via text, or other channels that I know of. I knew nothing about his video until today (mid-August). I thoroughly enjoyed watching the video. Then I saw the comment you posted about hating this video. I think you are being way too hard on yourself. I do understand where you are coming from regarding where you want to take your content next, and focus on your passions. That is what you should do. If you are passionate about your topic, it will be very apparent to your viewers, and it will help grow your channel as like minded people find you (and current Subs tell others)! Regarding your critiques of the Hero Me... The weight of a dual fan Hero Me setup is less weight than that of a Voron print head assembly using the same hardware (and only one part cooling fan). The dual fan duct example you used is on the extreme end of a 'front heavy' Hero Me setup. I can tell you that I have had reports from a number of advanced users that the mass of a Hero Me printhead setup has no negative affect on the performance of a high-speed CoreXY doing 200-300mm/sec. with 10K-20K accelerations. And the Hero Me was designed before the Benchy Speedboat took off with everyone racing to make their printers faster and faster. Regarding the turbulent vs. laminar air flow...Yes it is the ducts air pathways and I loosely used it to compare to other dual duct designs (that had zero engineering done) where the two ducts are basically facing each other and therefore the airflow is very turbulent to the extent that the airflow from the ducts almost cancel each other out. The Hero Me ducts have been designed from both computational fluid dynamics results and real-world printing results and feedback (7 years worth). The ducts are not only pointed down (Y shape) focused below the nozzle, but also angled towards the back (also a Y shape) where the nozzle remains centered above the merge of the airflow). The Hero Me duct design has been proven to deliver more efficient cooling than 100% of Mfgrs stock setups and ~95-98% of other 3rd party part cooling options. This is because none of them have done the engineering work (especially the printer manufacturers) to design the proper airflow to properly cool the filament while printing. I don't know what it is about your setup, or slicer settings, but much better 200mm and longer bridge tests can be printed with the Hero Me with next to no perceptable sagging of the first few layers. An old review of a Hero Me Gen5 on TH-cam by @youmaketech shows what I mean (titled: Hero Me Gen 5 on Ender 3) at the 8 minute mark. A point you brought up briefly at the beginning of your introduction of the Hero Me, that is just as important as the cooling, is that the Hero Me is much more than a part cooling solution (although that is how it started). The Hero Me system is a completely modular printhead assembly that supports almost any possible combination of hardware. Instead of buying a new printer, someone who uses the Hero Me system can very easily upgrade their existing 3D printer to higher performance components (hotends, extruders, sensors, etc) by only having to print one new Hero Me part for a given component. Almost every other 3rd party printhead system has to be scrapped if you want to upgrade even one item, because they are all designed for just one set of parts. And then you have to search for another printhead setup to match your components. Some Voron systems and the EVA-3D are the only exceptions, but even they are quite limited in what components can be combined and what printers they can be used on. As for the asthetics of the Hero Me Gen7, the design challenge called for performance, and to be compatible with the hundreds of different printers and many dozens of different printhead components that it supports. I have actually designed cool vanity covers for a dual duct, direct drive Hero Me Gen7 setup, but it just adds weight to the setup and serves no purpose. I guess the question for everyone is: Do you want a pretty 3Dprinter to look at, or one that is high performance, supports the components you have, and gets the job done with great print results? I think you did a great job covering all the aspects of part cooling and how the Hero Me Gen7 contributes to better print results. Thank you again for producing this video and for your support of the Hero Me Gen7. I will definately be linking to your video from the Hero Me pages on Printables, Thangs, Makerworld, Thingiverse, etc. Happy Printing, Andy MediaMan3D
Hey Andy, so sorry for leaving this comment hanging for so long. I’m constantly telling my wife that “I wish there were more hours in the day.” I wanted to wait until I had the time to thoroughly read through your comment and leave a worthy response! Also to my knowledge, we have never had any sort of communication. The HeroMe5 was the genesis of my 3D printing/DIY hobby from what I can remember! It made me realize that these silly machines can be messed with to my hearts content. I then fell out of printing for a little while and was brought back by the HeroMe7 which allowed me to readily mod my print head (my first TH-cam video). I think the system itself is fantastic. It really is the best one I’ve seen out there in terms of versatility, cooling, and personality. My one or two major critiques of the system looking back are… If it’s your first time trying to use the HeroMe system, it can make your head spin, all the different parts you need. In the second part of my video, I tried to provide an overview of the parts you would want to select without undercutting the need for the comprehensive PDF that you provide! I don’t recall if you have paid videos that hand hold people through the process or not, but I think some sort of overview would help future generations! My other critique, as you mentioned, may only apply to my permutation of the system. In past months, I’ve noticed my print head bounces along as it goes. I’m not sure if this is a result of my v-slot system having some slack or just how far out my print head sticks out from the gantry plate (a result of the stock plate, not the HeroMe’s fault). It’s likely a combination of both which I hope to address in the future. One question I had, do you have the simulation results for the cooling ducts available anywhere? Thank you again for your support! I really appreciate you taking the time to watch the video and leave such a thorough comment to help out the community. I am excited to see the continued development of the HeroMe system and hope to cover it in future videos!
@@SpencersDesk :D I recently pulled this printer off the shelf. Since it is impossible to sell it due to known problems with the electronics (I didn't have any), I decided to convert it to a clipper in the future. For now, I will make an adapter for a compact print head, pull out all the working original electronics and sell it to those who need it for replacement. The native X-axis carriage is better here, because it has more attachment points. But Hero me maybe isn't the best solution bcs of long tube between extruder and heatbreak
I haven't watched the video past the first couple ducks, yet I always wondered why it's not done using compressed air like with chips during milling process. Obviously nobody likes the sound of a compressor but there are methods to cancel it out fairly good (i can speak on the phone standing next to mine 100L 6 bar) and on printfarms that would mean you get as many print heads cooled as you want with basic relays. Back to the video
You do want airflow or pressure control that can be automated, controlled by the individual printer. Fan based cooling setups aren't actually that efficient, most of the air is going every which way doing nothing. So several things have been around in the community. One is CPAP machine, the other is a membrane pump setup known as "Berd Air". Both are remote air lines. Roots compressor has been done as well as well as various turbine compressor air pumps.
One reason I could think of is that compressed air might actually change the shape of plastic, especially when bridging? Rewatch one of the bridging scenes where the first connections are made and imagine compressed air😂 I can also imagine that much air being too much if blown directly onto the build plate. There are silent air compressors that people use for air brush painting I think, so that could definitely be something you use! Now your print farm idea is probably a solid one. I can see the air compressor, when having its output divided among printers, would be awesome.
@@SpencersDesk obviously the high pressure is not needed, so precise control is a must. I thought about it and although I am unsure whether this would be beneficial or just different it’s still a good idea imo. Some sort of donut/torus design with tiny holes pointing at the nozzle tip from all 360’ directions would be my first solution to avoid deforming plastic and have less ‚air force’.
I think you’re referring to the dual duct I said wasn’t working? There’s a slot in the side that you put your hex key through to mount them to the universal base. So, if the fan is mounted first, it blocks that slot, meaning you can’t mount it to the universal base
Wait, I actually just checked the dual duct part and you’re right, I could’ve just mounted the fans first😂 the single ducts have to be mounted before the fans, I got mixed up. I must’ve just missed that or in my frustration with the breaks, just moved on to the single ducts.
Another idea/question was the dual duct designed for heat inserts in the fans? You can add heat inserts into the fan screw holes, the voron skirt fans use that method.
A great point! I personally don’t remember seeing it in the documentation (he doesn’t go through part by part describing them, which I personally think every single part should have a little read me with a short note about it) but that’s a fantastic idea!
This is a really cool idea, especially the fume consideration. If you could focus the airflow somehow with sucking, I would say it’s very doable. The limitations are, sucking would suck air in from all directions whereas blowing, you’re able to focus and shape the air flow. Also, I think sucking would require more pressure from the fans? Not, sure. Cool idea though!
Sorry to respond so late, but I have an electric screwdriver which recently broke on me, and I just got a new one. The link is in the description of my newest video!
@@SpencersDesk oh for sure! I usually have it running pretty low for most prints. I only crank up speeds and fans when doing rapid prototyping. Their layer adhesion sucks, but they do their job in checking test fitments!
Earnest feedback: focus. If you recut this video with only part cooling content, I’d happily watch. As is, this video’s tangents distract from its pedagogical value.
![[LIVE] : ONE ลุมพินี 88 | คู่เอก "ป้อมเพชร vs อัสลามจอน"](http://i.ytimg.com/vi/1ZqTVVbMgbo/mqdefault.jpg)
Hey friends,
First and foremost, I want to say thank you for watching this video. You could be doing anything else in the world with your time, so I sincerely appreciate the time you spent here with me.
In all honestly, I think this video is crap. It's too long, covers too many topics, and covers those topics rather poorly (except for the Hero Me part? (maybe??)). I spent a lot of time trying new editing techniques, learning to animate, and just getting the actual project done. I recently graduated from school, am about to get married, and will be starting a new job in about a month which has proven to be a lot to juggle even without having to worry about TH-cam. I've been working on this video somewhat consistently for a little over 2 months and had reached the point where I was overwhelmed and just wanted it to be over with. So, I got it done and posted it (obviously).
While I hate this video, it has not disuaded me from continuing to make TH-cam videos. In fact, I've learned a lot about myself that I believe will help the channel moving forward.
1. I'm no longer going to make content because I think it will get clicks. I'm only going to do projects that I enjoy personally and want to share with you all.
2. I'm no longer going to edit my videos with audience retention in mind. I'm going to edit so that the video is clear and concise, entertaining, and fun for me...
3. I'm no logner going to think that video quality comes from editing. Video quality ultimately comes from the quality of the project or presentation of a topic. From now on, this will be my focus.
4. This is the final video I will ever post, that I did not enjoy making the whole way. Forgive me for this full diaper of a video, it will be the last of its kind.
From now on, I will make sure that my video start from a solid project, and that my focus is the value that it can bring you all. I no longer have time to focus on time consuming (yet amusing to me) edits as there's no way to keep quality content flowing while I begin the life of having a full-time job. Maybe one day I can hire an editor, but for now, it's not happening.
Anyway, ramble over. I hope to see you in the next video.
Sincerely,
Spencer
P.S. I'm really excited for the next video that I'll be making. It's going to be about linear rails and bed slingers. Is there anything you think would be cool for me to look at? Let me know!
that comment alone should earn a sub. Thanks for the like on my comment in the previous video, it was SO good I literally forgot to subscribe back then
Damn, i think that's quite ruff on yourself - i think the details on how different choices of cooling speed were very interesting
The only thing i didn't really like was that i think the bass-y transition sound was a bit unusual 😅
I fully understand not wanting to make videos for the sake of e.g. clicks though, i've heard it's an unhealthy mindset and have experienced similar with posting memes, even with it being much lower effort
As for linear rails and bed slingers: I'm interested in the concept of using just a simple pipe in a pipe for it, with something to stabilise rotation around the pipe :P
Don't be that hard on yourself. Take the stuff you don't like or f'ed up and learn from it. Don't worry about it, but take the experience and make yourself better, then you were yesterday.
And I do disagree, the video was quite enjoyable and informative.
Subbed, like your style
don't be so hard on yourself. this is a really good video. i wish it was around when i was new to 3d printing, it would've saved me SO much time trying to understand each of the topics you covered.
really appreciate this. subbed
Hey people! This dude is afraid he made too long of a video covering too much data, hit that 2x speed so you can learn faster and he can feel better!
Gotcha! Will do, love it when videos are long because of content instead of cliffhangers.
I do that for almost any video, often even above 2x
Havent seen the video duration when clicking. I was so happy to see I still got almost 40 minutes of things to learn and think about left after the first AD break😮🎉❤
I don’t mind long videos if they are informative. What I hate is when people repeat themselves and just blab about stuff way off topic. This was a very informative video. Perhaps it could have been broken up into fundamentals of part cooling and installing the hero me system but I would have clicked the next section anyway. Very helpful. I thought I wanted this system but I hate how it blocks my view of the print head. I like to watch it lay down the first layer but would have to tilt my head way down to see it lol.
We can also help by telling him WE LOVE THIS. So how about making a normal long form video like we have here, and a shortish one that is heavily edited to have only highlights. Link them both to each other and let your audience decide how much time they have
You came out of NOWHERE and producing INCREDIBLE content right out of the gate. TH-cam is far too saturated with 3D printing channels that focus on products; a channel focusing on concepts and engineering has been much needed. I CANT WAIT to see your next video.
247Printing, CNCKitchen, Vez, DD, all focus on engineering as well
Thank you very much for your support! It's out now ;)
Ahh yes, my idols. 247 is crazy cool. Made with layers is quite good too! I don't know DD?
⚠️⚠️Noctua does now make a 40x10mm 24 volt fan it's perfect for printers!⚠️⚠️ It even comes with a low noise adapter to reduce its RPM if it's cooling well enough already
That’s amazing! I just checked and I can’t find it on Amazon (I may have missed it), where do you find it??
@@SpencersDesk Noctua NF-A4x10 24V PWM, 40mm Quiet Fan for 3D Printers
Ahh well there goes $15 more! Thanks for the head up!!
Awesome video. Halfway through so far and just want to say I enjoy the "rolls of PLA" currency. "I bought this soldering iron for the cost of 3 rolls of PLA" fantastic.
Haha, I love using other ways to look at money. When wedding planning over the last few months, I started to think in “this venue doesn’t cost $10,000” it’s “$2500 per hour” which is rather sobering. (these are not real numbers, I do not have that kind of money😂) Thanks for your comment!
@@SpencersDesk "honey, I bought another 3d printer" "what?why? How much did that cost?" "Only 1/50 wedding venues” "oh... Ok, I guess that's not too bad"😂 this might just be crazy enough to work.
Congrats on getting engaged
Haha, you clearly have a natural talent for the technique! Thanks for the laugh!
A couple years back I used to be more interested in upgrading my 3D printer and such, and I tried the Hero Me system. It was pretty good. Well put together and designed. I don't remember how long I ran it for but it was probably a year or so. When I upgraded to an E3D V6 hotend, I started to have issues. Maybe it was the fan, but I started to get heat creep issues. I changed to Petsfang which had a lot more room for airflow around the coldend heat sink and my heat creep issues went away. The biggest issue I've had with these sorts of cooling upgrades is actually too much cooling. Dual 5015 fans blow a lot of air, and I've run into issues with extrusion, which I believe were caused by the part cooling fan cooling the nozzle too much. Moving to lower fan speeds and higher nozzle temperatures has helped this issue and I haven't run into it for a while. For PLA I run 215 C on the nozzle (0.6mm) and 50% part cooling (up to 80% depending on layer times) and the parts come out pretty strong. Though if I am printing thick and fast I have no issues with cranking the temps as high as 250 C if I feel it needs it.
That’s a really good point! Luckily the design of the mosquito silicone boot covers the sides of the nozzle, so I imagine I’m avoiding the same issue. Other silicone socks don’t seem to be as good though. I’m definitely interested in moving away from the Hero Me in the future, hopefully to my own custom design!
I wonder if someone could design a better PID tuning system that runs the part cooling fan at different speeds, as well as the nozzle at a couple of different temperatures to make a better control for the hotend temperature under different circumstances. Extra ideally it would also be while printing a pieces at different speeds to account for the energy needed to heat the material at different flow rates.
I believe you can do something like this but it’s a fair bit of work to do. Automating it would be a lot better
The best thing to do would be to PID tune your hotend at 50% fan speed (or whatever fan speed you were okay with the printer using all the time) and that would allow the hotend to respond appropriately. I think for my setup, with the skirt and the mosquitos being designed so well and having a great silicone boot, the part cooling isn’t affecting it too much
Laminar flow is less efficient for heat transfer, but I believe it's more efficient at power transfer. Basically turbulence creates back pressure on the fans at makes it harder to push as much air.
This is exactly it. I believe at the time I was confused about where the laminar flow was being claimed to be. Maybe I misunderstood some of Andy’s explanations.
I think I'll just blast air at the prints and set up an annealing box if I really need to, probably my old toaster oven with a digital tempurature probe stuck in it to make sure I don't melt the part while tuning the tempurature on the analog dial. I have a new oven, old one doesn't need to be food safe anymore. I use the Mini-Me for my Ender 3 Pro as my current cooling duct, it's not going to be as good as adding aftermarket fans but my print quality has gone way up since I put it on.
Whenever I cut PTFE tube, especially when being used as a 'liner' for a direct drive setup or a holding stub to wedge into the hotend for some bowden hacks, I've found it's super useful to gently ream the ends into a taper with a sharp drill-bit. It's important not to overdo this on the hot-end side, leave a lip all around so it can structurally seat, that side helps with cold-pulls, on the top side, a slightly more aggressive taper, helps keep inserted filament from getting caught on the edge whenever putting a new color in.
I definitely want to do this in the extruder side! I’m hesitant to do it on the hot end side as I don’t know how wide it should be. Also, I think I’ve gotten 1 clog with my mosquito in the entire time I’ve used it. Hopefully the trend continues and I may avoid cold pulls. Thanks for sharing this awesome tip!
@@SpencersDesk on the hot-end side of PTFE, it really 'all depends' on how things were designed to be seated. The main thought I had on that part was if there is any 'squish' on the PTFE, then that opening won't get constricted, but about 1/3rd of the exposed surface area was all I removed. To this day that was still one of the smoothest to load extruders I've ever used, and easiest to cold-pull on a whim. I accidentally created a feature as well, it was perfectly able to extrude filaments, but when pushed past what it could melt, the stepper gently skipped steps instead of chewing the filament up. I only recently realized this means it's actually able to cold-pull itself.
My dude just casually dropping runescape tunes as background music
EDIT: AND A CLIP FROM THE GAME
(you could've gotten stock footage of sword dipping in water from Giant's Foundry)
I recently found some archives where you can download the entire OSRS playlist! I think there’s even one for all the sfx! I wanted to use the giants foundry but there are surprisingly few gifs of it. The RS side of my will definitely continue to be a theme ;)
right..? q-q now I have to hop on and play a bit :D
You're going to the top of 3d printing community basically immediately. How come u only have 69 views as Im watchng (nice) and a little over 1k subs is so insane.
I recommend the cheap Chinese 80W 980S soldering iron. Costs half a roll of PLA and there's basically nothing to improve on. High power with temperature control makes it useful for everything from hot glue to heavy copper wire. I'll probably buy a second one just to save time switching tips, since I often solder wires and then craft strain reliefs out of hot glue.
Zhaoxin 936 and its brothers are a very very good stations with temp control
That’s a good shout! Someone else mentioned the pinecil which I’ve had my eye on for a while
I have no suggestions for improvement. I watched the video to the end and I think you have done a great job of explaining things and pointing out when there are options what those options are to the overall design.
WELL Done sir or in other words "YOU DID A GOOD JOB"
thank you. You have earned a new subscriber and I look forward to your next videos.
Thank you very much! I’m rather looking forward to the next one myself
I personally opted to go for the XoL toolhead. It's waaay less bulky, waaay lighter and results in 15k+ accel on X comfortably. 😁👍
Previous versions used things like captive nuts. I think heatset inserts are new to v7, or perhaps v6.
Also, my dedicated heatset iron was like $30 including special tips for each bolt size and a stand. You don’t need a superior iron for inserts.
Very good point! How do you like having a dedicated insert press? I thought it’d be tough to use when parts have odd geometries that don’t lay flat. I’d personally recommend a soldering iron as it can extend to electronics work too! I will say, I haven’t put in the time to get heat insert tips (which are compatible with my iron) and just using the iron tip can sometime be problematic!
@@SpencersDesk Sorry - it's a soldering iron dedicated to heatsets, not one of those drillpress-looking things! I just got tired of worrying about getting melted plastic on my "nice" soldering iron. I like using the heatset tips because I can just line things up and not worry about dabbing into the plastic. They're also nice for the periodic part that wants you to push the insert below the surface plane (some Voron inserts want to be a few mm inset).
Rolohaun had a nice video this week about using a flat blade to heat, and then a metal block to press flat. I use a random metal bracket I found in the garage for pressing flat.
Oo that’s a nice idea. Do you have any recommendation on a soldering iron that comes with a set of tips?
@@SpencersDesk I don't think TH-cam lets you post links, so the iron I got was Amazon item B08R3515SF ($11.99, 80W soldering iron), heat-set tips item B09VL41T7K ($8.99, "Insert Tips for T18 ST 900M", I think the 900M was the connector type), and the base was B09CT8XT9B ($10.97). I recently saw a recommendation for a kit like B0CSVRY42F (cheap iron with included tips for inserts), and I suspect that would be fine, too. This use case isn't as sensitive as "real" soldering.
My PLA has higher than 60°c GTT. I often bake my PLA to get rid of the moisture at 63°c and it is no where near the transition temp. The material is just warm. Not soft.
I may have misspoke. I think it’s actually around 100C. I also remember most people saying that 45-50 is enough for drying PLA? But anyway, thanks for pointing that out!!
This is a pretty cool concept...the modular build. The negative is it adds a lot of weight with all the screws and inserts and multiple wall thicknesses that would go away if designed as a single piece with a simple snap on cover.
The Hero Me system is pretty cool. It's also one of the lightest. Ive tried quite a few different tool head designs on my bed slinger and settled on the HM. It's Gen 6 or 5 can't remember.
Most people will only use the HM on a bed slinger so tool head weight isn't as much of an issue as the bed will always be heavier and the limiting factor for Accel and print speed.
If your using this on a core xy then you should probably re think your choice. There are better options, Dragon burner for example.
Be better than yesterday. But be a better you.
Thank you so much! I appreciate the support and your time here.
I thought that the partial air from HeroMe fan duct will hit the silicone sock and that will change the direction of the air flow. And this is why I removed HeroMe gen7.4 from my ender 3 and designed my own fan duct for my own setup. I personally hate Hero Me.
BUT this is the only video that explains how to set the part cooling fan settings on Orca slicer (prusa) so thank you!
I had no idea how to adjust those min fan max fan settings.
I think the water test I show was enough for me to believe the air is going the correct direction. I do wish, at least in my setup, the the mosquito was turned 90 degrees so the ducts wouldn’t be so close to the silicone sock.
I definitely think the hero me isn’t for everyone! I’m personally planning to move away from it when I’ve got time to do some of my own design. I’m glad you got some use from the video!!
It is midnight so I don't have time to watch the whole video, but today I learned that my part cooling was too good. I was getting crazy warping and delamination with PLA at 230 C and it turns out the my blower fans I mounted are cranked WAY too high, I didn't know that could even happen with PLA. I printed test prints at 75,50,25, and 0 percent speed and it turns out the best is 50% with good layer lines and good adhesion. Now I can finally print vase mode.
FWIW, the F in FDM stands for “Fused”. The temperature of the layer below should momentarily reach Tg when the next layer goes down, at least on its outermost 10-30%. If it doesn’t, you’re not extruding hot enough.
Annealing at or above Tg makes this more thorough and consistent, as well as “releasing residual stresses” caused by the extruding process, making the part stronger at the expense of possibly altering its geometry. These changes should happen in predictable and repeatable ways, so if you’re making extruded plastic parts, the shape of the hole in your template is different to the final shape.
I can’t say I’m an expert on these topics but overall, nice video and story telling. I didn’t expect you to rebuild your whole toolhead from scratch, but sure, why not! Also nice to describe all the extra steps that are needed when you do that to make sure the replaced toolhead works properly.
I always forget it means fused! Haha I definitely had some scope creep on this one. Hoping to not cram so much into one video moving forward! Thanks for your comment and valuable input!
I’d like to add that the pin support challenge isn’t much of a challenge when basic Ender 3’s print it perfectly. I’m not saying they’re sufficient in all areas. I use dual 5015’s myself, but another metric could be used.
I have to agree here completely with this point, I have a OG Ender 3 (albeit heavily modded) and a stock hotend S1 Pro and both print the pin without any issue. Neither have much modifications to part cooling and the S1 really has none at all
I didn’t know this! I definitely could have tweaked to extreme parameters. It was sexy in the video though
Good video. On the laminar flow topic, that would pertain to the flow inside the ducting. Once the air leaves the duct and starts to run into things, it will quickly turn into turbulent flow. The laminar flow inside the duct will definitely increase output of air at the nozzle. While I'm not a cooling expert, I am a Mechanical Engineer. We had to study this topic in fluid power and thermodynamics. Using a flow software such as Ansys would show the improvement to output. I know there are some alternatives and even a free online software that Teaching Tech has a video about how to use it.
Yeah, I’m just a baby, perspective ME but I’ve been trying to create “laminar” flow for a laser nozzle but it’s been, challenging. In order to achieve laminar flow (sub 2k Reynolds Number) at the current flow rate, the nozzle orifice would have to be 70mm, rather than 2mm.
I’m just shooting for MORE laminar flow though, and there’s already a massive amount of improvement with the nozzle designed by Nervous System. I’m now trying to constrain the paths more and design based on air characteristics rather than water in the super soaker based design.
All that to say, fluid dynamics is hard :(
Thanks for the great info! I now know the laminar flow refers to inside the ducts. I do still wish I could see some simulation/know how important the laminar flow is in these context!
Chapter 1 is all informative and educational. And then I am introduced to a rather complicated (though very cool) project? I thought you're gonna teach me how to make my current setup cool well😅
Haha, that’s a good point! I think chapter 3 is what you were expecting
I love the HeroMe fan system and have used it for many years. I just got my new hand-built printer all set up with the Gen 7 and I absolutely love it! I don't agree with the weight being heavier as my Gen 7 I printed is lighter than any other system I could find. I also believe the way the air comes out of the vents is smoother than any fan system I have ever seen. Good video!
That's so cool! I wish I could build/design my own printer. Have you got a video on it? if I remember correctly, my point about the weight was the weight itself, but the way it is distributed in space. The HeroMe is very bulky which causes additional torque, in theory, but maybe not in a meaningful way. It's of course a product of designing a system for every printer ever. I definitely love the HeroMe system. Hopefully I can't print it one day with great print quality and awesome filament. Thank you for your support!
My bone stock Ender3v2 can do the pin support challenge no problem, even the sphere. Only tried it with PLA tho. Overhangs at 65° look really solid.
I'm considering switching to the Mini Satsana cuz it's super simple and doesn't need extra parts. Hopefully the bi-directional cooling is an actual improvement over stock.
That's very impressive!
hahaha that "you ok?" i have been there so many times
Hey, as for the soldering you did here 23:46 - I don't even own a soldering iron (yet), but on "college" we learn to solder somewhat.
AFAIK you are meant to put the cable on the metal pad and heat both at the same time, and then put the solder wire on so it melts right on top.
If you heat the wire on the air, it (sometimes) creates blobs.
Cheers!
This is definitely the ideal way to do it. In practice, it's often quite difficult to do it though. After the amount of coffee I consume, I find it very hard to keep steady, haha!
nice, I plan on building the same toolhead for my ender 3. I kept trying to find a solid video that goes in depth about the hero me gen setup and did just that!
Good luck! While it has its own set of issues, it is much better than a stock setup!
Excellent video! I tried previously to use the HeroMe 7 on my BIQU B1, and has similar experience to yours. Bulky, difficult to assemble, not aesthetically pleasing, etc. Ended up modeling my own cooling ducts that fit the original metal hotend case, and managed to replace the small-ish original fans with the blower type ones. It most probably has the exact same cooling performance as the HeroMe, but it's much more compact, and uses the original sturdy metal mount to the rail instead of the plastic HeroMe one. Also made an adapter to fit the Orbiter v1 that I had laying around. So I could say the best thing about HeroMe is that it inspired me to get the same thing by "investing" into modeling my own thing for a couple of days. Which is why it has a respectable place on a shelf next to my very first voron cube and the very first afterburner (from a V2.4 I once built).
I’m definitely a lover of the hero me for the same reason. The gen 5 was the first mod I’ve ever done to my printer. I’m sure it has been the diving board for lots of others getting into the world of modeling and modding. I personally will always prefer something that inspires to something that works a little better. Thanks for sharing your experience!
Someone's probably already said it, but I can't find anyone saying it, so I'm going to: Hero Me Gen 5 (and maybe 6, I dont remember when he switched to heat press inserts...) uses captive nuts, just like you suggested. it's still readily available on all the major 3d printable file hosting siites.
Not sure! I had a Hero 5 (it was my first ever printer mod) and you're right, I don't recall it having heated inserts!
for what its worth i thought this video was actually quite good, and very comprehensive
lol, that Hero Me guy has the polar opposite design sense as me :) I obsessively make everything compact and lightweight with as few parts as possible, and use coarse threaded screws into the plastic (like almost every injection molded thing ever made) instead of the fiddly and heavy heat inserts.
Part of making something modular is sacrificing all of the optimizations unfortunately :/ I’m right there with you though, I’d be trying to make my print head perfect. I hadn’t heard of using coarse thread screws! Can you still unscrew and screw things multiple times or do the holes wear out?
@@SpencersDesk Fine threads wear out quickly, especially in PLA, but coarse threads last a long time. Just be careful to locate the existing thread when screwing back in. I rotate the screw backward until I feel a little click as it drops into the thread.
If you ever do strip it, put epoxy in the hole, coat the screw in grease and then epoxy, and stick it in. The epoxy forms perfectly fitted threads, and the grease prevents bonding to the metal so you can still unscrew it. Good for wood too, especially if you need to screw into endgrain which strips easily.
Awesome tip, I’ll definitely look into it!
Personally, I’d prefer the more common screws and love heat inserts. Never have I felt like extruder weight was what’s holding me back, usually cooling or maximum volumetric flow rates.
Thanks, man.
I not into the HeroMe, because of the overhang to the front of the mounting point and the fact that with 2 big fans the center of mass is shifted so far out. I personally have the Spriteburner on my ender 3 s1, one 5015 right above the extruder motor. That's enough for me, on 100% its enough for petg bridging. For the rest, about 50-60% is fine.
It looks janky, but that's okay 😊
Appreciate the time you put into testing and explaining, thanks for that. I did learn quite a bit here 👍
I’m not a huge fan of the bulkiness of the print head either. I’d like to design my own print head, moving to a Bowden style extruder probably. Swapping the touch for a clicky probe. Having a single part cooling fan, which I’ve got a special idea for. Until then, it’ll stick around!
Hmm... A "tall load" will/could apply more "torque load" when moving the head in "XY" movements than if You have the "load" at the same height as the print head. If I'm not mistaken the "torque" depends on where the "load" is in relation to the "fixed point" that is loaded during the acceleration...What I'm trying to say is that a "wide design" isn't necessarily worse than a "tall one" with regards to the amount of load it applies to the printer... It depends on the whole design..
Best regards...
Yes, you’re exactly right. I mention in the description that I cut a lot of footage out of the final video. Some of that was a more in depth explanation about torque. If your torque being applied in the clockwise direction is equal to the counter direction, there will be no net torque. I’m not 100% sure, but I assume the voron designers did their best to balance it around the mounting point. Unfortunately for the Hero Me system, it would be a mountain of work to make sure that every single configuration is balanced in any way. I personally don’t think it would be useful in high speed situations where those things matter as much
Interesting vid! Thanks for your thoughts.
Ive been using the HM on my ender 3 v2 clone for a couple years now and its quite good. Not as rigid as some other designs but I think some of that is due to way the linear rail is mounted on my machine.
I have a single 5015 feeding a dual duct and it can easily over cool the print.
The amount of cooling required is dependant on what the motion system of your printer is capable of, up to the point where the properties and behaviour of the plastic start to define the limitations.
I think there is to much focus on speed within the 3d printing community. Speed doesnt = better. It'll wear out your printer faster and your slicer tune has to be on point.
That said i highly recomment people explore the speed print rabbit hole. Its a highly educational experience and you will gain a deep understanding of your printer, slicer and the plastics your using.
I definitely agree with you. I think if you’re printing for quality, you really only need the one fan worth of cooling. If you’re going for extreme speeds, you’re going to want CPAP and auxiliary or something. Or maybe, you just want to print as fast as possible without being a speed printer, maybe that’s the sweet spot the dual fan lives in.
You could have mounted the buck converter together with the other electronics, and only ran a single additional 12v wire to the print head :)
Interesting. I just ordered a big pack of inserts and a dedicated setting tip for my iron a few hours before finding this video. Unsure if I'll go this route with the new hotend I ordered though
I wish I had a setting tip :( I totally recommend the Hero Me over any other stock. It's a great starting point!
Great video Spence 👍🏻
Thank you :)
your videos are crazy good. very informative and well presented
Pinecil or similar are also valid offerings for the same price or less. Soldering irons are becoming more accessible, and it's a wonderful thing.
Sea Shanty 2 is the only choice, btw.
I’ve had my eye on the pinecil for a while! I’m glad they are more accessible. Such a valuable skill to have from car maintenance to fixing stuff around the house. Hehe glad people notice the music
An impromptu alternative to silicone sock is to simply wrap your hotend (if you don't intend to print much above 260°C) in Kapton tape. If you push it too far, it might carbonise but the outgassing is probably not particularly poisonous, unlike Teflon. Also pay attention that what you got is actual polyimide tape, not brown-tinted PET tape, which is something unscrupulous sellers now do. The PET tape, when you heat it up, it melts and shrinks, while Kapton/polyimide will not shrink or melt.
What can happen with good part cooling if you don't have any thermal insulation on your hotend, is also that the amount of heat pumped into the hotend is so high that the heat wanders up the throat, which will cause clogs. Whether this happens, or whether you get thermal error from the firmware, depends on your PID tune and your heater power relative to how much filament you're pushing through. 40W and slow printing is easily sufficient to cause heat rising.
An interesting filament material is HIPS, it is very cheap and lightweight and prints very easily even open frame with good dimensionality and fair (not perfect) layer adhesion and doesn't tend to warp, and it has temperature resistance somewhere between that of PETG and ABS/ASA.
Something to keep in mind is that HIPS, ABS and ASA are not naturally flame retardant, unlike PETG.
The slim fan being "just as quiet" as Noctua for sure has less airflow. But if it suffices, it suffices. Also you might want to stock up on smaller voltage step-down boards, like Mini360.
I suggest thinking twice before using CA glue on electronics. Sure electrically it's fine (when arc flash is not a hazard), but if you ever have to rework the board, you need to keep in mind to solvent wash it off thoroughly or you'll be breathing in horrible poison once you start soldering; and you might struggle washing off CA without also washing off the wire insulation. Kafuter silicone is good to have. Epoxy is good too. Dropping a tiny length of filament on the edge and then fixing it with a soldering iron is valid in my opinion, just don't forget to tin and clean the tip right afterward to wash off all the junk.
I do think near-laminar flow is potentially of advantage, since you don't want to cool everything, just the bead that has just exited the nozzle. Most turbulent setups will just send air every which way. You probably want a little turbulence but not much.
Thanks for all the wisdom! I definitely prefer silicone socks as you can take them off for cleaning and higher temp filament. But using Kapton on the print bed sounds like a solid idea!
I’d never heard of HIPS. Is there any advantage to it that makes it better than the others? Is there something bad about it that has made it less popular?
I’d looked for 24V to 12V step down boards but I could only ever find larger buck converters. I’ll look into the 360!
@@SpencersDesk I just noticed that the Mini360 is not intended to be used with 24V. Absolute Maximum Rating is 26V input but 24V is JUST outside the recommended voltage range, accounting for tolerances. Whoops :D MP1584 is recommended for 24V inputs (AMR is 30V), the boards come out just slightly bigger due to external diode.
HIPS? It's very pretty and very well behaved while having a fairly high temperature resistance, and being an order of magnitude less stinky than ABS. I don't have the budget for ASA, i absolutely hate ABS, but i have been having a lot of fun with HIPS. Everyone who actually used it says it's a highly underrated material. It's got support material stigma attached to it, since it's usual purpose is as dissolvable supports for ABS, since it's easily dissolved in limonene but ABS isn't. But it prints so nicely that it's a shame not to print it!
I’ll definitely look into the HIPS! Also good tip on the MP1584. Thanks again!
Great video! Our algorithmic overlord offered it out of the blue and I was not disappointed. There are SO MANY rabbit holes to fall into when it comes to 3D printing...
So glad you enjoyed :)
You had me at osrs background sound track. Whatever you are talking about im incline to believe you.
Haha, when I see someone use RuneScape font in their video, I’m the same way…
Dude, while the video was longish it also covered a lot of stuff. Even though I knew most of them I kept watching as you very nicely cover everything about cooling there is. The point I'm trying to make, your doing well. Sure it could be better, but one can always say that about anything.
Now regaring possible areas of improvements, I think this would also work as a multiple part series.
I any case, keep up the good work!
Thank you for the kind words. It means a lot!
better soldering iron to choose is for suer miniware TS80P
Wonderful guide! Wish I would have had it when I printed here me a month ago.
Awesome video- really love the deep dive on these niche topics of printing!
Thank you! Got some more fun projects cooking up right now. Hope you enjoy!
As always, a great way to spend some time and learn some new things. Thanks for putting this together!
For anyone buying a soldering iron, considering getting a pinecil instead. It's around $25 and it's better then most irons in every way. Also you can buy a tool from CNC kitchen that also fits into this made for heat inserts.
It's open source as well, can be used with USB-PD.
When my soldering iron dies, I'll be going for that!
You should consider whether a Bowden or DD is more worth it for you
A DD adds so much to parts complexity, weight and resonance to the toolhead for pretty minimal gains unless you're printing extremely picky filaments
I’m definitely planning on it! I think when I started printing I got this idea in my head that Bowden was just a cheaper way for manufacturers to manufacture. But these days I’m planning on the Bowden! I don’t have many plans on printing with flexible or anything, so there shouldn’t be any major loss.
Minimal gains? Hahaha bro are you joking?
@@riba2233
Aside from all Ive mentioned the only additional benefits I can think of are Less filament flex, better nozzle pressure.
What other gains can you think of? Theyre nice for 50mm/s odd material types of printing, but far far worse for higher speed printing. I personally print at 15K Accel, 350mm/s.
@@RyLo18D pressure control is abysmal, around 20x worse than on DD so you can forget about any kind of nice results while printing faster. No problems of printing below 50mms ofc, agreed on that one. But now that we have sub 140g DD extruders (stepper included) I don't see the point of bowden, just not worth it imho
I think you can try printing the first bridging layer faster (about 60~80mm/s) instead of slower!
That’s a good point. I wonder what works better… the faster printing would maybe leave less time to sag/make the temperature of the plastic a little lower… something to look into!
I'm using Bull's eye, it is similar style but with one fan instead of two. Not perfect, at times i would need more power but for 99% of the time, it is just fine with one stock ender3 fan and two ducts.
Ahh, I'd seen the fan duct but never knew the name! Maybe use a more powerful fan? Are you running a 5015?
@@SpencersDesk I'm not that versed on fan tech that i know from memory, but i'm guessing: no. It is the original ender3 fan. I did do the "plate of water" test, it is better than the stock fan duct for sure, nice fairly symmetric pattern.
Chemist here (PhD), just needing to clarify a thing: our common filament plastics can not form hydrogen bonds with each other. For this you would need hetero-atom bound hydrogens (like OH, NH, or similar), acting as so-called hydrogen-donors. The oxygens in PLA and PETG and Nylon (which also contains N) can act as hydrogen-acceptors, but seeing there is no donor in the base molecule, this kind of intermolecular force is not applicable here. I would rather argue that we primarily see Van-Der-Waals forces and pi-pi-bonding. 7:54
Oof what an oversight on my part. Thanks for clarifying! Pi-pi bonding is a form of covalent bonding right? I forgot that if it were only hydrogen and van der waals that it probably wouldn’t be a solid at room temp
@@SpencersDesk ah I think it’s alright for the general public. Pi-pi bonding is a form of non-covalent interaction between (you guessed it) pi-orbitals. There’s also dipole-dipole interaction as well as dipole-induced dipole interaction, which probably play a greater role overall now that I’ve looked into it a bit closer
Ohh you just woke up the part of my brain responsible for remembering dipole interactions… I was relying a little too much on my memory and not actually putting in the research… But again, won’t happen in future videos.. Thanks again for sharing your wisdom!
@@SpencersDesk I’m just glad to be this well received! I also forgot to tell you what a great job you did with the video!
That noctua fan is louder because it pushes 4x the amount of air.
The data sheets show they push about the same amount of air. I think the culprit is the fan guard on the noctua! Another commenter told me that noctua has made 4x10 fans at 24V for 3d printing so that’s the direction I’m going!
Great video as per usual, even if you're not pleased with it yourself. Keep up the great work, at your own pace, and congrats on the upcoming wedding.
Thank you :)
The Biqu/BTT Turbo cooling came out today too so another option similar to the cpap type
Bro!!! Your intro is hot. I can tell you spent good time on it.vWithin the first 2 minutes of this vid you got my subscribe. Love it. Keep it up and please stay connected to the community
Thank you friend! I’ve got some projects cooking up. Hope you enjoy them!
My own solution: I stopped printing PLA. no more parts cooling needed, less wires, less volume around the hotend, and less weight :) I used a hero me before though, and it worked great.
Haha, definitely a solution. Without PLA in your life, what’s your go to filament now?
@@SpencersDesk I am mostly using PETG, with a little ABS and ASA when I need more rigidity. I do have issues with PETG and overhangs without supports nor cooling above a 45 degree angle though. Right now I am printing 3" tubes with various angles and length to model a turbo downpipe (with merging external wastegate). That way I can order the right stainless tubes and bends :) I managed to print at 150mm/s with cheap PETG, so that a win :D
21:59 Noctua sells fans for 5, 12 and 24 volts, just search for the one you need.
You would believe the face palm I did after finding this out. I may be wrong but I think they only recently started producing the 24V fans. Thanks for the heads up!
English is not my first language so my words might be straight forward.
Great start in the beginning --> After you explained the principle of print cooling, I thought, your direction will be research in detail about "good cooling is the just enough amount of cooling, no more no less" as this would be very intersting.
About 50% of the video is actually about assembly of Hero Me system --- this is also good --- during the watching I was wondering --> Why is this guy building a hero me system where nowadays people are building Stealthburner or even Dragon burner, toolhead with cpap (you also mentioned it).
Maybe I missed it, but seems there's not too much explaination of why you chose herome vs. the current "trendy toolhead" ---》 since you can print ASA, pretty much you can do it.
They all have similar princinple --- having 2 bigger part cooling fan. But dragon burner / XOL or other toolhead is likely to have lighter weight and more compact design.
You clearly put into a lot of effort into it, I also saw your "rambling comment" --- above is just my 2 cents when watching you video. cheers.
Thanks for your wonderful comment! I believe I chose the HM7 because I was somewhat familiar with it already. I think it’s easily accessible to a lot of people as well rather than the others which I think you’d have to design custom mounts for. In the future, I actually plan on designing my own printhead as well!
Do yourself a favor and buy a set of feeler gauges and use those to set your Z offset. You want to be just touching the feeler gauge and then you can subtract the thickness of the gauge (I use the 0.3 on my set because its easier to see.) when you configure your Z-offset and then your printer knows EXACTLY where the bed is and you wont have to eyeball anything.
I’m personally part of the school of thought that believes Z offset is better done visually. My reference is Ellis’s 3d tuning guide. I’m also not sure how gauges work on a textured bed? I just don’t know what z offset leads to a perfect first layer. If I knew it was .2 mm or something, I’d definitely go with your method!
While I respect the work and research of the hero me contraption I have always thought it looked too bulky and overboard for what it does. I like simple designs, this is the complete opposite.
I definitely agree on the design side. But, when designing for use with some many different printers and components, it makes sense! I personally want to design my own print head when I get the spare time!
Let's start referring to prices of everything in amount of rolls of PLA lol.
IMO Slicers are still archaic in how they make overhangs - I think it'd be possible to generate Gcode that fits overhanging better and make prints even better.
I believe Thomas from made with layers or Stefan at CNC kitchen made a video when layers are printer like the horizontal bits on the sphere pin test I showed. Looked really cool, but I forget where it’s at in development
Base looks like printed from PETG with 0.8mm nozzles and without cooling. It should be printed with much better quality, to make real use of air stream instead of blocking it with all these blobs, strings and non-smooths. "Fan Booster" printed in quality shown on video, is more a blocker than a booster. Teh same goes for internals of ducts. Perfect should be smooth. Good results can be achieved with ASA/ABS and acetone. Not really need for acetone chamber. Just put the duct into the acetone for 20 seconts, grabbing by a part (let's say mount) that doesn't have to be smoothed. Dry it and repeat. We tested literally the same set of ducts before and after smoothing, with the same gcode, and differences were visible for overhangs and small parts.
I love the smoothing idea! I printed the ducts with the recommended settings from Andy. The Prusa Mini doesn't have the best cooling which lead to some blobs. Once I have the capability to print in better quality, I definitely will!
@@SpencersDesk Almost no printer have the factory duct even close to optimal. And "recommended settings", better not comment. They're at the same time conservative (thus slow) and also far from being optimal.
Good luck with your own, smoothed ducts.
Chapter 1 is great and I enjoyed it. Chapter 2, however, is way too specific and instructional and in the end it was hard to understand what's so great about the system.
Haha, yeah, this video was a few different topics that I kinda slammed into one. I'm still in that new TH-camr phase (and probably will be for a while)
I love my hero me setup that I just put together about a week ago. I just don't get why all those led mounts (the one you used included) block so much of the view of the hotend. Kinda counterintuitive to add lights so you can see better but then block the view with those lights 😅. I'll probably design my own light mount that will sit at the sides instead of in the way.
Haha yeah I also noticed this. I’m unlikely to use that mount either. That’s an issue with the HeroMe, it can do just about everything, but it’s not REALLY good at anything (except the cooling). Thanks for your comment!
@@SpencersDesk yeah there's definitely compromises but it's totally understandable for such a modular system. Luckily the extra weight isn't much of an issue on a bedslinger.
Fantastic video, very well made! I appreciate the detail, thank you!
Thank you! I’m glad you enjoyed
Sprite pro: it DOES suck, by design.
Dude you had me tripping. @ 3:40 when the runescape Al Kharid music started playing because im playing osrs and running around thinking WTF is this music coming from hahaha!
Haha that’s too funny. Truthfully, I’d never imagined someone playing OSRS and watching my video😂 thanks for the comment bro
this is like a timemachine to 2020
Every thought a Time Machine would look like a car
I couldn't figure out what to print of the hero me for my MK3S+
Personally, I don’t think I’d use the hero me system with a prusa printer. They’re very nice machines. I think you’d be better suited with a prusa specific mod! Why do you want to use the hero me?
@@SpencersDesk sometimes I get a layer curling on a small sharp corner that is above the first layer, some edges or angles/corners have different shrinkage and makes that section weird looking and not sharp, not sharp sharp, but a clean edge not getting a clean edge on some areas.
Gracias por excelente video.
Ojalá en español habría información a este nivel.
Hola mi amigo. Me gustaría tener subtítulos en español en mis videos, pero… No tengo la confianza suficiente para comprobarlos. Me sentiría mal poniéndolos en Google Translate y siguiendo adelante. Cuál es tu opinion sobre eso?
As far as length and detail ... it works for me! But, yeah, I can see that it might limit viewership. IMHO this is a good long-term investment which should still have relevance in a few years, so it might have a pretty long tail. I guess it's the kind of thing where you need to find a good compromise on your investment in scripting and editing. It's possible you could break it into parts, but I think as it is it had a pretty reasonable flow with each step building up to something. It's also hard to make good standalone parts that also work as a playlist :-).
You kinda nailed my inner turmoil on the head. It’s weird to play the TH-cam game because it feel disingenuous, but you have to play it for people to see the content. You can make the most valuable videos and have them seen by nobody. Watching back after posting, I actually felt okay about what I’d created. I think I just kinda lost the plot and needed to move on. Thanks for your kind words, and it’s nice to see you under another video!
@SpencersDesk
Spencer,
Thanks ever so much for creating this video! I only just today learned about it from a friend of mine. I very much appreciate all the effort you put into it. The detail on each issue related to part cooling, how to go about selecting and assembling the Hero Me, and your honest opinion of what you think of the Hero Me. Note to everyone else who may be reading this, to my knowledge, Spencer and I have never talked to each other, or via text, or other channels that I know of. I knew nothing about his video until today (mid-August).
I thoroughly enjoyed watching the video. Then I saw the comment you posted about hating this video. I think you are being way too hard on yourself. I do understand where you are coming from regarding where you want to take your content next, and focus on your passions. That is what you should do. If you are passionate about your topic, it will be very apparent to your viewers, and it will help grow your channel as like minded people find you (and current Subs tell others)!
Regarding your critiques of the Hero Me... The weight of a dual fan Hero Me setup is less weight than that of a Voron print head assembly using the same hardware (and only one part cooling fan). The dual fan duct example you used is on the extreme end of a 'front heavy' Hero Me setup. I can tell you that I have had reports from a number of advanced users that the mass of a Hero Me printhead setup has no negative affect on the performance of a high-speed CoreXY doing 200-300mm/sec. with 10K-20K accelerations. And the Hero Me was designed before the Benchy Speedboat took off with everyone racing to make their printers faster and faster.
Regarding the turbulent vs. laminar air flow...Yes it is the ducts air pathways and I loosely used it to compare to other dual duct designs (that had zero engineering done) where the two ducts are basically facing each other and therefore the airflow is very turbulent to the extent that the airflow from the ducts almost cancel each other out. The Hero Me ducts have been designed from both computational fluid dynamics results and real-world printing results and feedback (7 years worth). The ducts are not only pointed down (Y shape) focused below the nozzle, but also angled towards the back (also a Y shape) where the nozzle remains centered above the merge of the airflow). The Hero Me duct design has been proven to deliver more efficient cooling than 100% of Mfgrs stock setups and ~95-98% of other 3rd party part cooling options. This is because none of them have done the engineering work (especially the printer manufacturers) to design the proper airflow to properly cool the filament while printing.
I don't know what it is about your setup, or slicer settings, but much better 200mm and longer bridge tests can be printed with the Hero Me with next to no perceptable sagging of the first few layers. An old review of a Hero Me Gen5 on TH-cam by @youmaketech shows what I mean (titled: Hero Me Gen 5 on Ender 3) at the 8 minute mark.
A point you brought up briefly at the beginning of your introduction of the Hero Me, that is just as important as the cooling, is that the Hero Me is much more than a part cooling solution (although that is how it started). The Hero Me system is a completely modular printhead assembly that supports almost any possible combination of hardware. Instead of buying a new printer, someone who uses the Hero Me system can very easily upgrade their existing 3D printer to higher performance components (hotends, extruders, sensors, etc) by only having to print one new Hero Me part for a given component. Almost every other 3rd party printhead system has to be scrapped if you want to upgrade even one item, because they are all designed for just one set of parts. And then you have to search for another printhead setup to match your components. Some Voron systems and the EVA-3D are the only exceptions, but even they are quite limited in what components can be combined and what printers they can be used on.
As for the asthetics of the Hero Me Gen7, the design challenge called for performance, and to be compatible with the hundreds of different printers and many dozens of different printhead components that it supports. I have actually designed cool vanity covers for a dual duct, direct drive Hero Me Gen7 setup, but it just adds weight to the setup and serves no purpose. I guess the question for everyone is: Do you want a pretty 3Dprinter to look at, or one that is high performance, supports the components you have, and gets the job done with great print results?
I think you did a great job covering all the aspects of part cooling and how the Hero Me Gen7 contributes to better print results. Thank you again for producing this video and for your support of the Hero Me Gen7. I will definately be linking to your video from the Hero Me pages on Printables, Thangs, Makerworld, Thingiverse, etc.
Happy Printing,
Andy
MediaMan3D
Hey Andy, so sorry for leaving this comment hanging for so long. I’m constantly telling my wife that “I wish there were more hours in the day.” I wanted to wait until I had the time to thoroughly read through your comment and leave a worthy response!
Also to my knowledge, we have never had any sort of communication. The HeroMe5 was the genesis of my 3D printing/DIY hobby from what I can remember! It made me realize that these silly machines can be messed with to my hearts content. I then fell out of printing for a little while and was brought back by the HeroMe7 which allowed me to readily mod my print head (my first TH-cam video). I think the system itself is fantastic. It really is the best one I’ve seen out there in terms of versatility, cooling, and personality.
My one or two major critiques of the system looking back are…
If it’s your first time trying to use the HeroMe system, it can make your head spin, all the different parts you need. In the second part of my video, I tried to provide an overview of the parts you would want to select without undercutting the need for the comprehensive PDF that you provide! I don’t recall if you have paid videos that hand hold people through the process or not, but I think some sort of overview would help future generations!
My other critique, as you mentioned, may only apply to my permutation of the system. In past months, I’ve noticed my print head bounces along as it goes. I’m not sure if this is a result of my v-slot system having some slack or just how far out my print head sticks out from the gantry plate (a result of the stock plate, not the HeroMe’s fault). It’s likely a combination of both which I hope to address in the future.
One question I had, do you have the simulation results for the cooling ducts available anywhere?
Thank you again for your support! I really appreciate you taking the time to watch the video and leave such a thorough comment to help out the community. I am excited to see the continued development of the HeroMe system and hope to cover it in future videos!
Nice video. Thanks for putting this bunch of info together.
You could change carriage to ender 3 with more variants of mods
Dude, I spent so much time on your website (Vyper Mods etc)
@@SpencersDesk :D
I recently pulled this printer off the shelf. Since it is impossible to sell it due to known problems with the electronics (I didn't have any), I decided to convert it to a clipper in the future. For now, I will make an adapter for a compact print head, pull out all the working original electronics and sell it to those who need it for replacement.
The native X-axis carriage is better here, because it has more attachment points. But Hero me maybe isn't the best solution bcs of long tube between extruder and heatbreak
I did the same thing that stoopin hme6 dual fan no way to bolt it up...
Very good quality video, thanks
I haven't watched the video past the first couple ducks, yet I always wondered why it's not done using compressed air like with chips during milling process. Obviously nobody likes the sound of a compressor but there are methods to cancel it out fairly good (i can speak on the phone standing next to mine 100L 6 bar) and on printfarms that would mean you get as many print heads cooled as you want with basic relays.
Back to the video
You do want airflow or pressure control that can be automated, controlled by the individual printer.
Fan based cooling setups aren't actually that efficient, most of the air is going every which way doing nothing. So several things have been around in the community. One is CPAP machine, the other is a membrane pump setup known as "Berd Air". Both are remote air lines. Roots compressor has been done as well as well as various turbine compressor air pumps.
One reason I could think of is that compressed air might actually change the shape of plastic, especially when bridging? Rewatch one of the bridging scenes where the first connections are made and imagine compressed air😂 I can also imagine that much air being too much if blown directly onto the build plate.
There are silent air compressors that people use for air brush painting I think, so that could definitely be something you use!
Now your print farm idea is probably a solid one. I can see the air compressor, when having its output divided among printers, would be awesome.
@@SpencersDesk obviously the high pressure is not needed, so precise control is a must. I thought about it and although I am unsure whether this would be beneficial or just different it’s still a good idea imo. Some sort of donut/torus design with tiny holes pointing at the nozzle
tip from all 360’ directions would be my first solution to avoid deforming plastic and have less ‚air force’.
@@SianaGearz I will look into it, thanks
You’ve kinda sold me on the 360 tip… I don’t know much about compressors, but do they have something like buck converters? Like pressure step downs?
i bought my soldering iron for like $8 on temu. it hasn't exploded yet.
The “yet” in your comment is so imposing
this is a really nice video!
Why aam I watching this?! I don't even have a 3D Printer!!
what if you mounted the fans first and then mount it onto the rest of the hotend
I think you’re referring to the dual duct I said wasn’t working? There’s a slot in the side that you put your hex key through to mount them to the universal base. So, if the fan is mounted first, it blocks that slot, meaning you can’t mount it to the universal base
Wait, I actually just checked the dual duct part and you’re right, I could’ve just mounted the fans first😂 the single ducts have to be mounted before the fans, I got mixed up. I must’ve just missed that or in my frustration with the breaks, just moved on to the single ducts.
live and learn! it worked out swimmingly for you anyways. I just had a hunch they couldn't have screwed that up that badly lol.
Another idea/question was the dual duct designed for heat inserts in the fans? You can add heat inserts into the fan screw holes, the voron skirt fans use that method.
A great point! I personally don’t remember seeing it in the documentation (he doesn’t go through part by part describing them, which I personally think every single part should have a little read me with a short note about it) but that’s a fantastic idea!
All of my printers have CPAPs for cooling. Does that mean my part cooling probably sucks?
I hate to tell you this, but it probably blows.
Watched all of this to still use Satsana
Wonderful work man!
The problem with Andy's Patreon is that it have been inactive for almost a year.
I’m not sure it’s a patreon I would subscribe to for continuous content. Just for a month whenever a new update comes out. My personal take!
Well made video, keep it up bro!
Thanks man! I appreciate the kind words
So at what point do you just pipe in air and use a manifold?
One day I will require such a thing. One day.
Great video. Well done
Great video, thanks
your channel is underrated. the editing is rly good and your explainations are just 🤌. I learned quite a bit thaks.
Thanks for your kind words :) I’ll try to make it better and better!
anyone try sucking instead of blowing? it will remove fumes too and also aerodynamic shaping with air is potentially doable.
This is a really cool idea, especially the fume consideration. If you could focus the airflow somehow with sucking, I would say it’s very doable. The limitations are, sucking would suck air in from all directions whereas blowing, you’re able to focus and shape the air flow. Also, I think sucking would require more pressure from the fans? Not, sure. Cool idea though!
What screwdriver do you use?
Sorry to respond so late, but I have an electric screwdriver which recently broke on me, and I just got a new one. The link is in the description of my newest video!
I got a ws9290 cpap so I think I'm good, lmao
Your cooling doesn't suck. It blows. Just remember, you can over cool as well!
@@SpencersDesk oh for sure! I usually have it running pretty low for most prints. I only crank up speeds and fans when doing rapid prototyping. Their layer adhesion sucks, but they do their job in checking test fitments!
Earnest feedback: focus. If you recut this video with only part cooling content, I’d happily watch. As is, this video’s tangents distract from its pedagogical value.
Great video!
Thank you!
is that runescape music
Nooooo…😏