easy peasy Belt Tensioner Sapphire Plus Core XY
thingiverse
Simple Pulley for GT2 Belts. The entire project was too cumbersome for me with the cable ties on my Sapphire Plus. It is a M10 threaded pulley with a notch for a GT2 belt over 4 teeth. One side remains secured with cable ties (you can also use a spanner there) while the other side gets the pulley. The thread is slid onto the belt under gentle tension, so that the belt has a slight pre-tensioning. Then, from behind, tighten the nut ring against the hotend carrier. I printed it with 1 layer 0.2, then 0.12mm LW 0.38 Nut ring was scaled to 103%
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