Ender 3 coreXY conversion kit from Kay3D
ฝัง
- เผยแพร่เมื่อ 9 เม.ย. 2020
- UPDATE: Kay3D seems to have gone out of business. I have removed links to their website.
The Ender 3 must have been a lot of people's first 3D printer. Perhaps now they would like to take it to the next level. This coreXY conversion kit will do just that. It is a very involved build but the documentation, instructions and support are all excellent.
The real benefit of this kit will be when printing speeds are increased. I planned to test this but my under extrusion issue prevented that. I will likely upgrade the extruder and move it higher so the bowden tube path has a smoother curve.
An Ender 5 kit is in development!
This kit sent to me free of charge for the purposes of making this video. All opinions expressed are my own.
Models featured in this video:
20mm calibration cube: www.thingiverse.com/thing:127...
3Dbenchy: www.thingiverse.com/thing:763622
Claw III print in place toy: www.thingiverse.com/thing:388...
Chromatic vase: www.myminifactory.com/object/...
2020 extrusion clip: www.thingiverse.com/thing:267...
Buy quality and affordable filament from X3D. Buy 3, get 1 free and a free sample pack with every order: www.x3d.com.au
Get Quality Resins from 3D Printers Online. 5% off storewide for Teaching Tech subscribers [Code: tech5]
3dprintersonline.com.au/
Take a look around and if you like what you see, please subscribe.
Support me on Patreon: / teachingtech
Ok, now I want to see a Ender 3 conversion to a Delta kinematic :D
Then Ender 3 to a hang printer ...
Then we'll have an sla conversion mod
sorry to be so offtopic but does someone know of a way to log back into an Instagram account??
I somehow lost the account password. I would appreciate any tips you can give me!
@Nicolas Achilles instablaster ;)
@Jaxon Heath thanks for your reply. I got to the site thru google and I'm waiting for the hacking stuff atm.
I see it takes a while so I will reply here later when my account password hopefully is recovered.
This conversion is so radical it's probably easier to buy the few bits of the Ender 3 that you actually need to complete it.
While I congratulate the designers for doing a nice job of turning a Ender 3 into an CoreXY printer, I wonder if this kit will be sold very well. The cost is a big factor here. While I certainly agree that the components, design and support are worth the money, I really doubt that Ender 3 users will feel the urge to buy this kit. Do not forget that the Ender 3 fares well because it's a good and especially relatively cheap printer.
Personally I think that a CoreXY conversion kit for the Ender 5 would be a better marketable product. That printer already has the main base frame in place, so a conversion kit could not only be cheaper, but also more in the price range Ender 5 buyers can afford. I think most Ender 5 users would love to have a conversion to dual lead screws and CoreXY.
thanks for sharing. An Ender 5 kit is in development based on their Facebook post.
@@TeachingTech That's good news. I hope we get some more information about that in the coming months. I already own the standard Ender 5 (next to the Ender 3), and I am in the process of exchanging my standard main board for a SKR mini E3 V1.2. Now I only have to compile new firmware to use Marlin 2.0 using Visual Studio Code. That should be no problem.
By the way - Maybe it be a good idea to to make a video for newcomers how to use the latest Marlin 2.0 and how to install and use Visual Studio Code? It's not very complicated, but I guess an "newbie" could easily be lost.
I guess the most noticeable benefit is 19 minutes of entertainment.
P.D.: The tortuous bowden tube is painful to watch.
You did a great job of clearly explaining everything and giving just the right level of detail. Thank you
This kit may have its place, but on a Cartesian E3P direct drive I can produce a 47min benchy that's as exact to the slicer preview as I can tell. Base speed of 140mm/s. The extra Z is nice but not at the expense of Y.
Most buy/build as you go projects are never as good as just buying the higher end thing outright, but the Ender continues to be an exception. You could go from a $200 printer to a $2,000 printer, and it would still be extremely competitive. Love it.
330$ for that amount you could build XY from scratch then get Hemera for an extra 150 saved.
which xy can you build from scratch for that price?
@@Ryezn5057 D-bot, C-bot, Hypercube, and a few others that I can't remember
Can also buy a complete Sapphire Pro, at least in EU banggood warehouse
@Furry Catfish Fillet ender 5 isn't corexy
@Furry Catfish Fillet yeah, I thought it wad interesting that creality went to all that trouble and decided not to make it corexy. Maybe in the future.
It’s true that you could make a hyper cube for less than this, but what I like about it is all the metal components. It looks like it makes quality prints, as long as the extruder gets sorted. Honestly, if you’re going for speed then you need a strong dual drive extruder anyway.
We just released a dual gear printable extruder that uses BMG components. Fits onto the hotend like a glove. This will address the underextrustion issues.
Also, thank you for appreciating the all metal parts. Not many people notice them. Your encouragement means a lot to us! :)
Awesome! Box framed printers like that have excellent mechanical stiffness and can be worth the upgrade if you're making large lithophanes.
400mm Z height lithophane enough for ya? :p
@@kay3dlabs668 :D
It's worth noting that when you've got a rectangle, the easiest way to ensure that it's actually a rectangle rather than something else, is to measure the diagonals. If they aren't equal, you've know that something has gone askew and will need to be addressed.
This has the same vibe as building a Lamborghini kit car on a fiero. I own 2 ender 3s so I am no snob, but love it for what it is
Interesting upgrade
Thanks for sharing👍😀
I understand the price complaint. However, I love this idea of this kit. This kit can feed the upgrade and build itch that many of us have. Its not flawless and that, to me, also provides room for some personal ingenuity for improvements. I love my Ender3 and I love the core xy concept as well (own a Railcore II ZL as well). I think the build could really benefit from an all metal hotend with a Zesty Nimble. It would give the build a very light direct extruder and eliminate the under extrusion issue. Great video Mike and thank you for sharing it with us. This just became one of my future builds.
Hi Sonny! ah i see a railcore owner! We actually took some ideas from the railcore when it came to getting the metal components made. Just that our belts don't cross so we're a little different there but each to their own; there are benefits to both. You're right, a flexible direct drive would really make the machine shine. Hopefully there can be a re-test with a better extruder.
Damn that looks pretty great. Apart from the funky bowden path that seems to be fixable, I'm sure you could get much higher print speeds and better quality over stock easily with this kit.
Hi Mavamaarten! Indeed, the extrusions were sent wrongly. A little shy of 80mm. This made the bowden tube really compressed and the other things stick out. Hopefully Michael receives our replacements soon (we already shipped out) and can do more testings as under-extrusion should really not happen at all.
I appreciate the work you put into this .... just not sure Kay3D thought this one out very well as far as a viable market.
“Kay3D are actually preoccupied with accomplishment. So they are focused on whether they can do something. They never stop to ask if they should do something.” - Dr. Ian Malcolm
Interesting build!
I was waiting for this thank you
sorry you had to see underextrusions. Hopefully the replacement parts will reach Michael soon enough and he can help do a re-test as the underextrusion issues should not happen
This seems like a fix for a problem that really never existed.
I'm all for tinkering and redoing things, but this just seems.....I dunno....not...not a worthwhile "upgrade".
I agree, it looks like you would lose compatibility with other modifications and upgrades, and the kit itself costs as much as an ender 5 or a similar corexy printer
@@RomeDrori ender 5 is not CoreXY tbh
I kinda agree, but as Michael said, it's more about the project then the end product (at least that's how I'm interpretating his statement). Personally if/when I go CoreXY, I would rather go with a Hypercube Evolution or a SecKit SK-Go, a little bit more expensive, but build from the ground up to be a good CoreXY printer.
@@Cergorach I want to build a DBot. I'm slowly printing parts for one.
@@Cergorach Choose Voron 2
Nice review! I wanted an Ender 2 because of its small footpirint, but Creality stoped selling them. So I thought of converting an (broken) Ender 3 to an Ender 2. Would be a nice project!
It’s back!
You are a God when it comes to all the multidisciplinary aspects of this hobby. You should start your own company that uses corexy and targets the price point between 500 to 700usd. Not a speed demon ratrig but something that can do 300mms at standard quality
I’ve been pleased with my CR10-S, for about the same $$. The print head or hot end moves along the X-axis just as much as it does when Z is 200mm. The “wobble”, seems to me, comes from the fact the Y-axis or bed is moving the tall print. I would think tuning the jerk, or running with S-curve moves would be about perfect w/ a Cartesian printer. You are adding complexity when it isn’t needed. In my never to be humbled opinion.
Oh, Michael, it was very satisfying to watch this build, I like it very much, because of the efforts that were put into this project!
HI Zachary! Michael did do a fantastic review on the kit! It wasn't an easy kit to design but we're thankful for the feedback. Replacement parts are already on the way to Michael and they should solve the under extrusion issues
KAY3D Labs I love it I always like these kind of videos. Over the years I learned a lot about 3D printing and I learn and see every time new things to make beautiful upgrades. Maybe also for my channel as well.
I would love to see a guide with the Ender 5 version of the kit.
This is insane ! Ender 3 costs 200 usd! It is better to add 30 usd and buy more 2 ender 3:)
Where I live you can buy Ender 3's for 160 euro, so two Ender 3's delivered with glass beds and even two direct drive upgrades for the price of this upgrade kit (+ import duties)...
What would be faster? 1 Ender 3 CoreXY upgraded machine or 3 Ender 3's printing at the same time?... This kit really doesn't make much sense...
This is not to another level, it's to another universe!
brilliant words! :p
Paid Shill ? who else would say that shit?
That bed transition...nice
Thank you for taking the time in appreciating our work. :)
We have a local 3d printer(s) with a slightly less volume (probably) but for nearly the same price (of Ender 3 + Kay3D kit) you get a fully working 3d "box" printer with really good characteristics.
The main problem that I see here is that you need to make a conversion by yourself! It's a lot of work (for the most of users) so the price of the kit seems to be about 40-50% higher than it should be. Of course it's my subjective opinion and I can be wrong.
Doesn’t the kit cost the same as a corexy printer?
My corexy printer is cheaper than this kit and mine isbetter too , not usefull kit
@@furkanbicer154 More then some.
Furkan biçer well the ender 3 performs just as good as the core XY setup
For that price you can just buy two additional ender 3s and print 1 or 2 times as fast
@@furkanbicer154 Hangi model yazıciyi kullaniyorsun
@@orkhonal Bir tane i3 tarzı iki tane de corexy var ama hepsini kendim yaptım model olarak birşey belirtemeyeceğim malesef.
Wish you did comparison to some out of the box core printer in price range
I have a Ender 5 Plus and the kit for it is less expensive. It seems to make a lot more sense for a 5 which is already a box frame without the sliding bed. The question is how much faster can I print with the conversion?
Bought one! Excited to print with it.
Did you run a skew test in the X and Y as this can occur if the dimensions are not perfectly aligned on a coreXY, or the belts are over tightened, the way to see if you have a skewing issue, is to look at the prints of holes, if they are relatively round your O.K. but if they are oval you have a skew issue in your gantry
It seems like Bowden tubes drag on the filament a bit and increase the load on the stepper. The alternative is to put the feed stepper on the moving parts, but that increases the mass of the gantry, reducing acceleration. Is it possible to "lube up" a Bowden tube somehow to reduce resistance without getting gunk on your hot end, and without contaminating the filament? If that's not practical, can you upgrade the stepper on the feeder and get more oomph out of it and increase extrusion force, increasing extrusion rate? That might require an upgraded hot end that can melt more material per second, but might be worth it. What do you think?
Ender 3 is defo a gateway to the addicting and yet fun drug that is printing got a ender 3 mid of last year and for Christmas i just got a ender 6 core xy and dam is it fun now looking at a voron 2.4 for my end goal of a tinkering printer and maybe a Ender 5 plus just for my BIG things
Nice. But for less of the price of this expansion kit you get a complete CoreXY printer new. Like the Two Trees Sapphire Pro. Or cartesian direct extruders with auto bed leveling. And those already come with silent stepper drivers.
Hello, I was wondering if I could put in a request for a video on how to upgrade the stepper drivers on the monoprice/wanhao duplicator i3 plus?
When comparing benchy models most people always pass over 2 of the important parts that show a lot. The writing on the bottom and the back tell a lot about a print also.
How does this look to you?
imgur.com/a/w0bfJAk
If it added a direct drive or at least move to lineral rails I would be tempted but it would need these to be added for me to spend 300+ for this addon
Could you convert an Ender Extender with this kit, or will it only work on the normal Ender 3s?
in the comment everyone trying to point out the lack of practicality, but the thing is these are really a toy and a hobby in part or in whole, and upgrades like these are things people do because they want to, not because they need to
Thanks, interesting. Cheers!
Amazing!
Hey Micheal ,BIGU have put out the SKR mini e3 V2.0 with easy sendorless homing , dual z support and thermiator ahprtage protection circuit , can you do a video going over and setting up the board and verifying the thermistor protection circuit?
This kit looks like it would be fun. Maybe slap a bondtech extruder on it too
Man, I feel bad for the people involved that feel that this is a commercial opportunity. While I'm sure they will sell a few units, I very much doubt the majority would pull the trigger on something like this. The Ender in itself is a 'hobbyist' printer, and largely purchased because people who want to buy it, want a cheap, decent, 3D printer. Not the mention the upgrade path involved, you would think they would at least provide some of the roller/pully components assembled. I just can't imagine who thought it was a good idea to spend 1-2 years developing this idea as a product, even just writing that ~260 page manual (lol)! With the Ender 6 (Enders new Core XY printer), hitting Kickstarter later this month --- ouch!
Don't feel bad for us mate. Every business starts from somewhere, just like yours. Some have a great start; some less than ideal. I cannot comment how much has pulled the trigger but we do have a backlog of orders making us ramp up manufacturing. This review has provided us with countless opportunities to improve; including making direct drive options available, printable cases available and other things. It has made us realise the loop holes of QC within the warehouse sorting area.
As for the manual; it was deliberate. Surely, you can leave out the pictures and details and come complete with 2 pages, front and back. Surely you could; we've seen it like creality printers and so on and so fourth. But the manual includes the nitty gritty details including eccentric nuts, how to tighten them, why tighten them, a video link to watch if you don't like etc. In a CoreXY setup, you cannot just route a belt from A to B and use an idler bearing to tighten the belt. Every bearing and idler is stacked with appropriate spec'ed washer. Without a proper manual with details; a coreXY pulley system can be catastrophic.
We studied the comments, the questions that people ask on common ender 3 groups on facbeook and realised repeated questions. All day everyday and that's when we decided to include this super detailed manual. While others may find it (lol!) like you did, we're sure others who appreciate details would appreciate the manual.
I don't know if Creality has the same type of support; But I know we do. Maybe the Ender 6 is better; maybe our coreXY system is more sound; who knows?
But I know that we don't need everyone to pull the trigger; just a small community that knows what they're doing and what they're getting into. CoreXY is a very, very intricate and complex system. A system that cannot be summed up in 19 minutes (like what Michael mentioned). It takes real details and real hours to assemble calibrate and print.
This comment is getting a little too long but I just want to let you know that I appreciate your feedback :) Thanks bud.
So basically you buy a new printer and just reuse the components of the ender 3, which don't make the ender 3 an ender3.
i mean yeah thats what a conversion is lol
What's that filament color? Glow-in-the-dark or neon/flourescent green?
Is the manual still available somewhere? I could use it as a template for creating my own upgrade.
Did you find a manual? I have a kit but no manual. Thanks
Looks so satisfying to assemble this, assuming the release parts are properly sized and everything lines up. That bowden tube is painful to look at.
I've wanted to try a coreXY for some time due to the claimed speeds attainable, not sure this is the one though. Seems a bit steep for the result. I wish the company well though.
If you’re comfortable building your own, go with a Fusebox2r. 250mm/s speeds provided your extruder can keep up!!
Wouldn't the under extrusion be quickly fixed with esteps adjustment? Seems like that should have been the first fix after the benchy... or is it wrong to think esteps would fix the under extrusion?
It depends on the cause of the underextrusion. The problem here is that the routing of the ptfe tube seems to cause a sort of "snagging" issue, which wouldn't be consistent
is it printing so beautiful enough to covert with such a very complicated parts and assembly?....how many percent improvement?
If I attempted to follow along with this using a cr10 could I get the same end results? Using pieces to scale of course.
I think that you should try to make custom 3d printer with huge bed and on a budget.
Saif Alshamsi better to build printer with changing beds (eg 2 beds sizes 200-200 and 350-350) I have tested if to install in ender 3 on the bed drive Moyer 48 size you can achieve speed up to 120mm per second!! So what is the need in corexy??
Yup I did a CR 10 conversion to 1000mm z and x not as easy as it sounds but it's all possible just need to beef things up.
WOW, for that price you can buy a complete corexy.... I have 4 printers, the STOCK ender 3 pro (with capricorn and better springs) is literally one of the best printers you can buy.... But for $600 (or even another $400?!?!) you can but some pretty nice corexy printers.
Could you do a dual Z for the Ender 3?
Looks like a well thought kit, minor issues as you stated. I do like all the aluminum brackets vs using acrylic ( they are aluminum, correct? ) My question is that after you correct the under extrusion issue , re-routing the bowden , how does it compare to the ender 5 with speed vs quality.
Hi @mark! If you don't mind, I'll like to explain that. The under extrusion was because the Z height extrusions were a little shy of 80mm. Therefore, bowden tube was compresssed, z rods and linear rods were also protruding. Replacements are already on the way and we're confident that, that should solve the under extrusion issues.
Also, the brackets are indeed aluminium. Thick, reinformeced non-3mm brackets that are extra-heavy duty.
Once can expect speed increases and stepping accuracy since hotend movements are controlled by 2 stepper drivers instead of 1. Hopefully Michael can give you a reply as well! Let me know if you need help with any other questions! :)
@@kay3dlabs668 Thanks for the response. Looking forward to see this tuned up and flying.
@@markferrick10 We sincerely hope so too!
Well seeing that the company folded. Is there a way tou could share the info on this?
I have a CR10 I would like to do, and the info should be a good start.
what is your thoughts on kits like the Ender 3 NG? your kit seemed to replace almost the entire frame, vs the Ender 3 NG which uses almost the entire frame.
it has a proper instruction manual
You are creating great content to 3d community.
Please use grey filament when printing test cubes or benches. There is a reason that most of the primers are in grey, they highlight imperfections.
This lime green bench is worthless if we can not see anything.
YOUR A GENIUS!
You're *
This is more "build a CoreXY printer with bits from an Ender 3".
Which is pretty much what I did by buying 2 Ender 3 Pros to start from and not even assembling the second because buying the components you can use from an Ender 3 in a build cost quite a bit more separately than the 170€ I paid for my Ender 3 Pros.
The phrase "Lipstick on a Pig" comes to mind. Love the video but I would never buy one of these. :)
"Lipstick on a Pig" - couldn't say any better 🤣🤣🤣👍👍👍
Robert Mech what would you buy?
@@____________________________.x I'm more of the right tool for the right job. Which is why I built the LayerFused X301. I just don't see the point in taking an existing tool and turning into a completely different tool. I personally feel like most ender printers come with a payment plan. You get the base unit then spend the next year upgrading it in one way or another until you have the printer you want. I did that with my ender myself and felt like once I was done I spent far more in upgrades than I did just buying the better printer from the start. Just my opinion.
@@Daytona60146 The whole point is the knowledge you gain and some people like tinkering. A hobby in general which this is not compatible with pinching pennies.
@@ljohnson9440 its a piece of shit. people need to realize for some people the hobby is fucking with the machine for others the hobby is actually the printed objects. tinkerers dont excuse a piss poor product.
I am sure this has been asked, but what about direct drive on the extruder?
I get wanting to upgrade a printer you already own, and only having room for one printer, but this costs as much as an ender 5?
I have a Ender 3. i ordered the 400XL kit. I dont know which Y axis aluminum piece to use. I have to thick ones and 3 thin ones. holes are different and different from the one in this video.
Anyone else annoyed that you loose a bit of the XY print volume? But that 400mm Y is crazy. I think this kit would be worth it if they were able to keep all the motion hardware inside the frame to allow for an easy enclosure setup while keeping electronics outside and perhaps offering a kit upgrade option for walls or just specs to source your own. Also I would pay more for a linear rails option.
Looks good though a bit pricey. I wish everything were inside the extrusion though so it could be enclosed for printing filaments like ABS. For a corexy though I think it needs a faster extruder. At the very least it needs an all metal hotend. But then this is about the conversion and not any mods you can make to it. If it was not so pricey, I might consider it. It might be better to put the money toward something like a Voron or other Corexy. A Voron is super expensive though so maybe this is a good option.
I will wait for Creality Ender 6 core XY
I really wish I could still get this
Do you happen to have the manual? I am getting around to building mine but the manual is no longer online. Thank you
Ender 3 to cnc milling machine, cbc laser or plasma cutter, or computerized lathe. Also the cnc milling machine has to be able to cut stainless steel so maybe a steel frame. Seriously I need a video on these things because my budget is small. Thanks in advance.
great video, well engineered product but how is it better than an Ender 5 plus?
for the same price you get massive print volume, bl-touch, silent board and touch screen. slap a capricorn and a decent extruder and you get an astonishing printer.
8SharkTV Moshe ender5 isn't corexy
Baffles me a bit why they decided to use the Ender 3 as a base for a CoreXY, the Ender 5 would have made much more sense.
Would it really? That would only save you a portion of the X motor weight, and that's already smaller and lighter than the Y motor, which is upsized specifically to handle the load. With CoreXY you still have that larger load for Y movements, but both X and Y motors must handle it.
Can you do a head to head this kit vs ender 5?
The clip you used for wire management, wherre can I find the stl file for the clip
www.thingiverse.com/thing:2673266
One little comment: I'd unbox the kit and label those pieces first, in case something is missing. Not much point disassembling the old printer first if you can't complete the process of building the new one.
Next up: upgrade your Ender 3 to an STL or powder printer :D
(Its on sale, just 3999$ today!)
Was this kit developed before Ender 5 was released?
Spiffy kit, though "conversion" is a bit of an understatement. One thing I noticed is that the Z rails and screws seem a bit long. I don't see any logic in making them longer than the Z height of the frame.
There was a section on that near the end. I have a development version, the z extrusions are not long enough but the correct ones are in the mail.
Who needs this for this price...
I still have under extrusion. How did you fix that?
Please make tutorial and review for Ender 3 pro BLV
So I recently lost my house in a fire, And I am now going to buy a new 3d printer.
My question is. Would you buy an Endor 3 and upgrade it. A Endor 5 and wait for the update or maybe a prusa 3.
Too many option. I want to keep it under 1k still be near the 350 x 350. And dependable prints
Maybe take a look at the Voron if you are willing to spend around 1k.
A lot cheaper, also with original hiwin linear rails but with moving z axis you could go for a BLV MGN Cube.
Oh and both of these printers use the duet boards, which are probably the best boards you could choose for your 3d printer :)
Or remix your own corexy.
want something that big? pick up a used railcore; which is what the KAY3D CoreXY kit was designed after
Isnt it about the same price as the Seckit Go? You dont need a donor printer with the Seckit either...
How much of the original Ender 3 does it use?
That price isn't bad, except the fact that you still use v-wheels. I'd rather convert to a switchwire and a dual head for that amount. Plus they use more of the outside than they need to, removing valuable space for an enclosure. If I were to frame the outside completely like this kit does, I'd want to bolt on some panels. No go with the kit. And the axis losses.
I like the idea, but it's already been done better.
Conflicted grate video as usual but seems to me a product no one was asking for especially at a price you can buy a real core XY ? Plus the fact you lose build plate area to me that's more important then gaining some extra height. For me your other ender3 extender video product is a better option. How about you do a DIY ender3 video where you get some 2040 extrusion new longer Z screw, cut it your self or precut and extend the Z axis it's a far cheaper option then all these and its easy to extend or make new leads for the X gantry?
please please cover the voron conversion for all the same reasons you covered this one
You might wanna start your video with what does a core xy printer do
i know i'm very late to the party, but i am going to hunt around and see if there are any build documents left that include dimensions so parts can be printed/cut. i have an ender 3 clone in pieces and want to build a 235mm^3 corexy printer out of it.
Here is a new conversion and cheaper. th-cam.com/video/fNhd-7ei7ks/w-d-xo.html
Can we still call it Ender 3 ? still, love your videos, just got a pro 2 days ago, already did the bootloader, been love it,.
Can you use this kit to convert Ender 3 V2?
his website is down! do you have an updated link?
I'm working on one ender :3 kit my self
Just came across this video. It appears Kay3d has gone the way of the dodo. Any chance of getting a copy of the instructions/BOM? I’d be interested in seeing if I can source the parts myself.
Here is a new conversion and cheaper. th-cam.com/video/fNhd-7ei7ks/w-d-xo.html
Did you find a manual? I have a kit but no manual. Help is appreciated. Thx
Oh yes it looks the same as original! What? It looks like an another printer! Is this printer over - open source? So massive!
I love the concept, but it's hard to justify the investment when there's insignificant gain. If this included a larger build plate (say 350 x 350 or 400 x 400), then these would sell out quickly. If all I wanted was a build/mod project, I could find plenty of other projects that would get me more for less. There's a reason the Ender Extender kits sold out within hours - after all is said and done, you end up with much more printer for a very reasonable cost. Unfortunately, you can't say that with this kit.
When we made the CoreXY setup, we never had intentions to print 60mm/s. 150mm/s. We wanted to do more; much more. Speeds that a normal i3 movement system cannot achieve and that's the core reason for CoreXY. Unfortunately, that cannot be done until the under-extrusion is fixed which we're very apologetic about. If one was to include a larger build plate, costs would go up even higher with new extrusions. We're talking about real-sized build plates with full-size heaters and not "slap-on" ones. (the kit reuses 95% of all your extrusions). When that happens, the costs increases might really justify a new printer.
However, we do appreciate your feedback. We hope that one day you can see our kit printing properly at the above mentioned speeds. When you do, you might see the gain. Thank you for the feedback for now!