Z Axis Coupler round shafts on both ends, 5mm each
thingiverse
This remix uses round shaft holes on both ends, one for 5mm motor shaft, the other for M5 threaded rod. For Prusa i3 and rework variants. This one is also designed to print upright. I used .3mm 30% infill My preferred plastic is HIPS. No bananas or peeling. 240 hotend, 90 bed. 1.6mm shells (4 x .4mm hotend) 1.2mm top/bottom Solid top/bottom My default print speed is 35mm/s Depending on your shell size, the inner 5mm hole might come out too small. I used a 13/64 drill bit to finish it off. You'll need four M3x16 screws and four M3 nuts
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