BigAss CoreXY (updated to V3)

thingiverse

This is a BigAss CoreXY printer which allows up to 370x370x370 mm build volume! And can even make it bigger if you design it that way, since I uploaded everything! Enjoy! Test Run (Speed is capped at 50.000 mm/min) : https://youtu.be/UBUAHi7UNVE Update on (15/04/2018): It's working!! :) https://youtu.be/8fA4U-wku28 Introduction Why did I make another "DIY" printer design when there are so many? Well, because I thought it would be a good project to learn 3D design and about printers, so I started it. Also, I wanted to keep things as simple as possible with as few complicated pieces as you can. All the pieces to build this machine can be sourced from AliExpress or Ebay-type sites, so no need for expensive pieces. The hard part for me was finding smooth rods (since I didn't want to import them but had to anyway) and the build plate. Especially the plate. It's really hard to find a 420x420mm aluminum plate! You can of course change it according to your needs and availability. Please comment and suggest improvements if you have any, since it's not yet a complete project. Post-Printing Pieces Almost every piece needed is in Fusion360 file but check out the BOM part below. You need lots of M3 screws to lock the corners and pieces together. BOM Please check the attached XLS file for this. How I Designed This Change Log V3 Series: 3.1 I completely reworked the whole model since ABS plastic wasn't holding the printer steady, so I switched the corners into "aluminum corner pieces" - now it's super solid! I switched the board to a Duet Wifi - expensive, yes, but those drivers are amazing! After the MKS board made too much noise, they're like heaven! I modified the X carriage so you can install BLTouch if you want (didn't try myself) - been a little bigger than I wanted it now, though. The sensor piece is now "external" so if you don't want to install a sensor, just skip that one. Or modify according to your sensor! Due to easy maintenance, I've modified not-so-stress carrying parts with zip-ties. It's much easier to disassemble the carriage now. V2 Series: 2.15 I reworked the bed carriage pieces since the old one was unreliable. I changed the X carriage so that it allows shorter range inductive probes. I changed the bed corners to a simpler one. I changed the top corners' idler holes to 3mm (it was 5mm before). Other small tweaks. V1.72 I added a box for the controller board. I changed the two plate bed holding to sigma-rod based holder - the plate I used was 3mm and was bending up and down, causing jams and shakes on the bed when the bed is moving up or down. I changed where the smooth rods are, because this way they were closer to the bed piece (still don't like the top holders though, but I just didn't bother myself a lot with it). I fixed the holes in the "ext_carrier" piece - one of the holes on the surface was not exactly on the middle, so it was a pain when installing. I made the "ext_carrier" a little thicker on the motor holding side to be safe. V1.50 Initial version