zAxis for corexy printer

thingiverse

I build a core-xy printer based on Scribblej's corexy (https://www.thingiverse.com/thing:413394) design. However, I didn't like the way the z axis worked, so I designed my own. Actually, I have nothing agains ScribbleJ's, but I don't have access to a large enough laser cutter to make the bed -- especially since I resized the plans to make a printer with 300mm^3 of build volume. I am planning to build the heat bed support out of more 2020 extrusion. This design could be used either for a resin printer as well. Key features: -Just 3 parts to print per side, only 2 models. -The top and bottom pieces are the same - both a NEMA17 motor mount, and a 608 bearing mount for the other end of the rod -easy to access holes for 2020 extrusion mounting. -Lots of airspace around the motor, less finishing work to do if your printer isn't too precisely calibrated. -Makes use of SC8LUU bearing blocks mounted with M4's instead of a press-fit holder for LM8UU/LUU bearings. -Intended for top mounted motors, but could be used either way -Built for use with acme rod style lead screws Vitamins needed per axis -2@ 8mm linear guide rod -2@ SC8LUU bearing blocks + 8@ M4x16 ish screws to mount the bearing blocks -NEMA 17 motor -Motor standoffs, M3 hardware to mount the motor -4@ M2.5 or M3 screws and nuts to clamp 8MM rods -Lead screw with lead nut and flex coupler to motor shaft -608 bearing to support lead screw