The guys over at FabTotum did a critical analysis of the CoreXY gantry system. (I say “most” because there no bottom square yet. So I picked up some fasteners and fastening plates from 80/20 and finished up most of the frame.
I had bought a lot of 40mm extrusion off eBay back in the fall, but that was about it. Im the meantime, you can check out the discussion about his extruder design on the forum. There will also be a separate post just about the extruder. I redesigned his extruder to be a bit more user friendly, and I will definitely be putting his claims of swinging the extruder by the filament without any slippage to the test to really see how much this extruder can hold. He uses a a MIG welder driver roll in combination with a 100:1 geared stepper to get very high torque and an extremely reliable stepper. Since I am an avid member of the forums, I came across an extruder used by the user cnc_dick. That’s a 500mm x 500mm x 500mm build volume! I am planning on adding another ~150mm in the X direction and ~60mm in the Y direction later on, but for right now I just want to get the thing built.ġ00:1 geared extruder with MIG welder drive roll
