zAxis for corexy printer

thingiverse

I design a custom core-xy printer based on Scribblej's original blueprint (https://www.thingiverse.com/thing:413394). The z-axis mechanism, however, didn't meet my expectations, so I created my own from scratch. In fact, I have nothing against ScribbleJ's design; the issue lies in accessing a large enough laser cutter to fabricate the bed, particularly since I scaled up the plans to achieve 300mm^3 of build volume. I plan to construct the heat bed support using additional 2020 extrusion pieces. This design can also be used for resin printing purposes. Key features: *Just three parts to print per side, totaling only two models. *The top and bottom components are identical, serving as both NEMA17 motor mounts and 608 bearing mounts for the other end of the rod *Easy access holes for mounting 2020 extrusion pieces *A generous amount of airspace surrounding the motor minimizes finishing work if the printer isn't precisely calibrated *Makes use of SC8LUU bearing blocks secured with M4 screws instead of a press-fit holder for LM8UU/LUU bearings. *Designed specifically for top-mounted motors, but can be used either way. *Built to accommodate acme rod style lead screws. Required components per axis: *2 x 8mm linear guide rods *2 x SC8LUU bearing blocks + 8 x M4x16 screws to secure the bearing blocks *NEMA17 motor *Motor standoffs and M3 hardware for mounting the motor *4 x M2.5 or M3 screws and nuts to clamp 8MM rods *Lead screw with lead nut and flex coupler attached to the motor shaft *608 bearing to support the lead screw