Prusa MK4 y-axis belt tensioner
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This is a belt tensioner with a toothed pulley. Adapted from https://www.thingiverse.com/thing:2786671
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Updated at source:
Model information
- Source
- Printables
- Category
- Prusa Parts & Upgrades
- License
- Creative Commons — Attribution
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 axis
Note: 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