The Toolchanger that ROTATES!
ฝัง
- เผยแพร่เมื่อ 20 พ.ค. 2024
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The Filament Star, that I found at the Midwest RepRap Festival 2022, is a 3D printing tool head that rotates to switch tools. Jerry and Jack Fisher from US 3D LLC implemented this concept on their Ender-5 together with a DUET and extension board. Due to the modularity of the tool plate, you can't only mount hotends on it but even use it with dissimilar tools like pens. Let's find out more!
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Chapters
00:00 Introduction
00:23 Rotating Tool Heads
00:52 Filament Star
04:08 Sponsor section
DISCLAIMER: Part of this video was sponsored by Wham Bam.
#3Dprinting #toolchanger #mrrf2022 - วิทยาศาสตร์และเทคโนโลยี
Does the Rotating Tool Changer make you dizzy or is it a viable alternative to common Tool Changers?
Sincerely i don't like it too much.
By working with advanced high productivity machine tools i've studied a lot about tool changers, and, in traditional machine tools, revolver turret, like the one shown in video, have been really passed by tool changers. To see a similar rotating system that is fantastic for flexibility look at Fanuc Robodrill. If you're instead interested in rotary revolver tool changers the ones seen in "Riello sistemi machines" are beautiful to look at, but convenient only in rare cases where certain flexibility need to be paired with high productivity.
Sorry for my English, but i really like tool changers in machine tools and wanted to say my 50 cents 🙈
I think it's a good way to make your printhead weigh a lot.
I think real toolchangers are the Future.(Like in a cnc) But this Design might be changed a Bit to accomodate maybe 3 Heads to get it lighter and still versatile. The reduced waste is a big plus.(you get that with Classic toolchangers also,but they might be more complex or more expensive.)
thats a lot of moving mass
Very nice indeed, if it could limit the build volume a bit less it would really interesting.
The world's first biblically accurate toolhead. Amazing work.
In all my 30000 years on this planet, this has absolutely been one of my all time favorite memes
What a niche reference. Love it.
Be not afraid
@@Venaloid I love that a part of the most popular book of all time can be considered niche.
@@Eliseo202 AAAAAAH!😱
I'm much more excited by that Kickstarter project that shares a heater but swaps nozzles. This one seems to just put too much mass on the printhead and I can't see how they'd deal with oozing.
My only concern with that system on kickstarter is the amount of steps required to go absolutely correct in order for a successful swap. I think there is going to be a lot of unhappy people with that one.
@@DaneC020 absolutely, might be pushing the limits of a hobbyist system. But... if it can be made reliable it does solve a lot of the actual problems of multi-material printing with a side bonus of easy nozzle-size changes. I'm absolutely not throwing my money into the Kickstarter but I am watching with interest to see how it goes, lots of excitement and hope, tempered with much scepticism.
that wasn't the perfect solution either, you will lose the ablity to retract certain length of filament since it snips the filament on each swap.
Every time people talk about 3D print tool changers, even just nozzles, I always wonder why they don't add an ironing head. Wouldn't that work? I would have thought that would be a gimme. Plus, you could do more with tools like that. Maybe have a little heated rod to iron the sides of layers. It could ensure tolerances, texture, maybe even erase layer lines.
u can already iron out the surface with Cura by having it run thru the lines that were already printed
Love these sharings about MRRF series ❣️
It's really great trying out a new format!
Just awesome!
Cheers for showing and cheers for making such great projects to all you guys!
Due to the heavy weight it's slow as hell, you see this on the video but the idea is interesting. But I really prefer the one from 3d brain with a rotary tool head that just replace the Revo nozzle
This looks freaking awesome xD
ich liebe deine Videos! sie sind wirklich informativ!
Looks awesome! Just like the turret on the lathe I run for work!
Great idear
Thanks for sharing :-)
It would be interesting to use this toolchanger setup to do non-planar printing
Nonplanar printing needs a small print head. This is not a small print head.
inspiring!
Thanks for showing this. I'm sure it has limits, but an interesting concept. I missed MRRF - I was in Europe at the time, visiting my friend Max from DropEffect, hope to see you at ERRF in October
This technique has been used on some of the fastest CNC mills with tool changers. The Brother Speedio CNC mills use this for changing tools though it doesnt have multiple spindles just a turret that rotates. Once the head raises up the turret rotates then the head comes down onto the tool holder of choice.
amazing
Awesome
So I used a CNC back in the day that did that. It only had 2 tools. I wish the hobby cnc would implement something similar
We just havent got there yet with multiple colour printing, but we are getting closer maybe a few more years atleast. it's a cool concept tho that doesnt waste filament
So does it heat up just as the nozzle is about to be switched to? Or does it keep each head heated and just retracts the filament way back?
I wish I knew this event was so close to me!
My boy mitch!
Wheel of Holy Oozing :D
No practical printing with this thing as the temps must be at minimum to avoid oozing.
But I like the idea. Seems like somebody had lots of fun creating that.
how is the part cooling done with no fans?
Very cool, need mould release applicator for support material separation.. Like a sharpie, nail varnish, or proper mold release wax
That's super cool! I'm really excited to see how it evolves. Seems like it'll have a lot of drawbacks as is, but it'll be interesting to see how those are tackled as the project develops.
Dude this is crazy. Brilliant. You probably need to print really slow, but still. I like it!
reminds me of the "4-way print head 4Move" from the german company Multec
Really interesting and useful for certain use cases, but not for me... I don't usually need multiple filaments, and I am used to more speed with my SK-Tank. I'm curious to know if it can handle hotends of different lengths though... maybe a Volcano on one, and something short for TPU on another. I guess you'd just need to insert some gcode to raise/lower the assembly as you are rotating. I bet Z height calibration is a hassle with this thing :-)
One (unrelated) thing I was thinking of trying is to use a stepper motor to drive the filament spool. I would need that set up mechanically, then add a sensor to determine the diameter of the filament remaining on the spool. With those two things I could maybe use some live code to to determine how much to drive the spool stepper. Ideally the spool would be kept in sync with the needs of the extruder, and you could avoid all the issues with too much or too little spool unwinding.
I think this creates more problems than it solves.
Cool
I think it should have a static, non-rotating lock + centering mechanism in place to properly center each toolhead independently from rotating. This would also unlock proper printing speeds. Head weight aside, I assume it would be manageable - but normal X printing speeds would be impossible just alone by the way the printhead is held (or rather not properly held) in place.
I would basically mount this rotating on top of a V slot profile, then have a locking + centering mechanism on the bottom of the V slot, shortest possible distance to printbed. Just so that there are no low freq oscillations building up over the whole 20cm diameter of the wheel.
If you would then add static brass brushes to each side which the nozzle has to pass before it can reach the printing area you would drastically reduce the oozing effects on the print. Maybe on a static area there would be room to prime the nozzles and dispose of the prime amount, so no stupid prime tower needs to be build on the buildplate, leading to extra moves.
However, wheel aside or not, if you would basically break it down and say, instead of five printheads you would only use two, and not use a 360° wheel but only a left/right tilting mechanism with hard endstops - I think the concept would work great and might be enough for many needs. Has this been done before?
Hi Stefan,
First, any opportunity is a good one to compliment you on your work. Best channel on TH-cam.
I didn't find any way to write to Jerry and Jack directly, and I would like to suggest them to try their system on a machine that moves the trey in X & Y, and only the head (with the system) in the Z axis. It will be much more feasible this way. There is nothing to develop. Most milling machines are built this way.
By the way, a creep resistance test on annealed PLA parts may create some interesting results, since this property is highly dependent on crystallinity percentage.
you can use a planetary gear for the tube where the filament passes
I’m curious if the design could be sand casted into aluminum, and work just fine
Hey, I have a question. I‘m new to 3d printing and I bought an ender 3 v2 to start. Do you have tips for me?
Go print some Benchys 😅
como puedo contactar con el creador me gustaria hacer esta impresora 3d ,pero no tengo el fimware ni planos ni nada
They could use the clever head from Positron printer, which has a 90° angle...
How can I contact the creator? I would like to make this 3d printer, but I don't have the firmware or plans or anything
isnt that too much weight to move back and forth?
If you have powerful enough steppers with stiff enough framing and everything no, but that doesn’t look stiff enough, never mind the steppers.
@@strictnonconformist7369 No you can't brute force your way out of jerk and flex. There is a reason Hardley Ablesons don't win race's except against themselves.
Definitely a cool idea, but that's a LOT of mass on the gantry. We have a small tool that's similar to TAMV, but more of a manual camera-assisted process. Still works easily, just not automated...but the advantage is that it's not tied to a specific printer or firmware type.
It’s a clever concept and quicker than a tool changer. Multi material printing is kinda of the philosophers stone of printing and making it easier and more affordable is the ultimate goal.
I feel like on the ender 5 you sacrifice quite a bit of X/Y for all that bulk.
This is very nice alternative to the kickstarter tool changer. They should make it open source to make rapid progress. Than sell kits for those of us that don't want to source everything 😉
What a beautiful design, even in its early state. It's like this guy read my complaints about the X1 Carbon and made a machine directly in response.
Also, has there ever been a printer where the bed does all the movement and the extruder remains stationary or is that a bad idea for some reason?
The bed moving would take up more space, and it’s heavier, but it could work…
@@penninna the space thing is a definite minus, but I figure at some point you can add enough extruders to outweigh the bed
I could see them improving this by using it in an upside down printer, and having the tools rotate in a flat plane like a revolver cylinder. There would be no oozing if the nozzle was pointed up when not in use.
A worm gear would allow the rotating mechanism to hold its position without the motor supplying any holding torque.
What a brilliant idea 💡
I've been toying around with the Idea to convert a 3D printer to a robotic microscope for timelapses etc.... something like this could be used to add a rotation axis.
For the lenses? That’s basically what they already do, except the lenses are at an angle.
@@FieryCoal your comment doesn't make any sense. An FDM printer is a cartesian robot with 3 axis so I'd only have one camera angle. I would need some tilt mechanism to add the ability to change the angle.
🔥💕👍
i dont understand how these experienced makers dont see the problems with this even before its made? bowden drive, weight, leveling just for first thoughts.
It's much more likely that, as experienced makers, they've all had experiences where they've thought something would never work only to find that all the disadvantages it had weren't as bad as they thought, and there were unexpected advantages. Sometimes actually building a thing even if you "know" it won't work is the best way to deal with an idea - even if it doesn't, the lessons learnt often bring insights to other projects that can't be gained from just dismissing it.
@@bosstowndynamics5488 It can be a useful approach to build things you expect not to work and learn from the experience, and Simone Giertz gave a great TED talk about that. But the results are inevitable "shitty robots". There is quite a difference between tweaking a working design beyond what you expect to actually work, and starting with a design that very obviously amplifies a well known problem like seriously limiting speed with a very high print head weight. The latter isn't really constructive experimentation, just bad engineering, as there is no way this could have ended in a practical tool changer. If all they wanted was to experiment with rotating tools, fine, but saying that "it isn't a product yet" implies that they believe they can somehow optimize their way out of a dead end design.
Yes... You can't put a direct on such a head!!!
Prusa XL is probably the better solution, but it's a nice idea and solution for creators with too much time 👍
Seriously, I didn’t know this happened only a few miles down the road.
The weight will be crazy though..
Interesting design! I don't really like the other filament changers people have come up with, because multi-material printing with those kinds of setup produce a ton of plastic waste for little tangible benefit; 3d printing is inherently wasteful to some extent, I just found the purges required by these multi-color machines to be excessive.
Nice project, I was thinking to something similar, but using a servo motor for positioning. It seems that with the sacrifice of some speed it could be much easier to build than the toolchanging solutions or of Idex itself.
That seems to me the unavoidable path. Unloading, reloading, purging a filament on every slice can't be fast or precise. Maybe there are ways to optimize this approach (maybe a big shared hotend with several conduits in it?), but having several filaments constantly heated and loaded seems the only path forward for multimaterial printing.
Idkw but when I hear your voice it reminds me of that goldfish character on American Dad.
Hallo Klaus.
No thx, I have a dual extruder and that is headache enough.
I've been toying around with the idea of a toolhead changer, and the whole concept seems really inefficient to me. You're either constantly thermally cycling each toolhead (no good for wear and tear, adds to print time waiting for the nozzle to get up to temp each time you switch colours, which means the heatbed is on and wasting energy for longer than it needs to be), or you have the other nozzles that aren't currently being used always at temp, wasting energy, and burning the PLA inside of them if one colour isn't used for a while. I suppose the most efficient method would be to estimate the time it takes to heat the nozzle, and have it start heating before it's needed.
True but there are inefficiencies in every type of multimaterial system, usually in the form of purged filament. The goal of this device is to minimize wasted material, which it achieves successfully at the cost of slower prints and higher energy use.
Teaching Tech did a review of the X1 Carbon and showed how a 28g multicolor print created _328 grams_ of purged filament. This is a nonstarter for me, and given the choice I much prefer the featured toolchanger
No footage of it extruding? Without that I'd be very careful to call it anything beyond a pinwheel.
There's a few seconds running at 1:30.
@@jimbarchuk Ya, that's x/y movement, no extrusion is visible - I'm curious to see video of print quality/purging/multi-color/etc
@@planckstudios You're probably right. If it were fully working they'd show that off. It's got to be spectacularly difficult to get multiple heads running *reliably*. One thing I don't like is the bowden tubes doing loops. All that friction adds up and makes retractions less accurate.
Прикольно придумали.
It's like the revolver on a proper cnc lathe. very cool.
There's already a rotating tool changer out there that's far more realistic and cleaner than this but cool none the less.
Thanks for the mention Stefan! Hoping you'll find the time to try out TAMV sometime during your COVID quarantine!! :) Nice video, as always, great and informative.
I'll be honest here, to me, that's just not impressive at all.
It's big, bulky and clearly, it will fail often.
A much better approach, in my opinion, is the Mosaic Palette 3 (pro is cool).
It's a system that can take up to 8 colors of filament and the slicer commands it to push out the right color at the right time.
What this does, is to push out ONE filament. The filament that comes out, has been created by the unit joining the right color at the right time.
It works with most printers that we already have.
It's not inexpensive, however, but it sure seems to be amazing.
that has to deal with pushing the different materials through the same nozzle, which places some limitations on the combinations.
the mosaic autocutter is kinda old now too.
I feel like something like this would be best with an inverted moving bed kossel or something like that. then the weight doesn't really matter and you could have direct drive too. you could just as well flip the rotating axis almost 90 degrees as well then.
Elalem Rotating toolchanger yapsın biz hâlâ kertenkele basalım evde...
"Heavy!" Literally! The advantage of most tool changers is that the carriage only needs to carry a single head at any time and hence also doesn't have problems with oozing of the unused heads over the bed, but both of those advantages don't apply here and the wiring and Bowden tubes twisting like that also seems somewhat problematic in the long run. And finally ... it's a Bowden drive ... that in itself makes me tag it as not a viable alternative.
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@@CNCKitchen Danke 🤩😂
too much weight on the axiz
It's bowden, so very slow speeds and no flex. Toolchanger is much better.
It really ROTATES!!!!!!!!!!!!!1111eins
Interesting but flawed
Dunno reason, why this thing exist. Maybe just for fun.
Too much mass to be effective
why wasn't this the first attempt at a tool changer? this is how I thought they were.
That’s an exercise in over-complexity…theory vs. practical application
nah sorry - too many points of failure.
Looks really flimsy design.
To be blunt. A stupid waste of time. Some ideas don't need to be validated, this is one.