Malyan M150 - link Z motors
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very simple part, goes around your Y tightener and keeps it straight, allows for an idler pulley to be screwed on the…
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very simple part, goes around your Y tightener and keeps it straight, allows for an idler pulley to be screwed on the bottom (M4 screw and semi trapped traveling nut) so you can tighten your belt. I'm using GT2 pulleys on new Z motors (had to swap original ones for the ones with dual shaft) bottom shaft, GT2 idler on the printed part and 2GT-852 closed belt
motors are driven each with it's own driver linked to same step/dir pins and this belt is making sure they never go out of sync in case any of them would want to skip a step
note that after this mod you need to raise your printer on some feet some 15-20mm, I printed https://www.thingiverse.com/thing:2901984 out of TPU to get it up and to reduce vibrations. Not much point printing that in non-flexible material, cheaper to use 4 wooden blocks :D, but if you have some TPU it will reduce some sound coming from your printer :)
How I Designed This
onshape
source, as for most of my designs, available on on-shape:
https://cad.onshape.com/documents/b940a62347d2d9074401b94e/w/81bb9038d47cc6fc9cebbb6c/e/8c147fffbe9180edabbbafd2
Category: 3D Printer Parts