Prusa MK4 y-axis belt tensioner
prusaprinters
Mk4 belt tensioner with front access. Belt holder modified to MK4 belt holder dimensions. Tensioner frame mount adjusted to hold the GT2-20 pulley(15mm diameter).Printed with PETG, 20% infill, support overall to keep hole dimensions.Additional hardware:(1) M3 x 30mm socket head screws with Nylock nut to hold the swing arm(1) M3 x 30mm socket head screw with Nylock nut to hold the pulley(1) M3 x 30mm socket head screw with Nylock nut for adjustment(1) GT2 Pulley 6 mm belt | 20 teeth | 3 mm axisNote: this is for a GT2-20T idler for 6mm belt only...Update: Added a frame with square nuts as in the original Prusa X idler
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