Y axis belt tensioner for Prusa

by Rodot, published

Y axis belt tensioner for Prusa by Rodot Feb 13, 2013
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3523Views 678Downloads Found in 3D Printer Accessories


A very cheap, simple and effective belt tensioner for the belt of the Y axis of your prusa. Thanks to it, you no longer have to dismantle the whole bed to tight your belt.

A tight belt avoid wobble/backlash and improve parts quality !


Just put everything together, it's very simple !

Bill of materials :

  • 1x printed part
  • 1x cheap 608zz bearing
  • 1x M8 bolt
  • 3x D8 wahser
  • 1x M3 bolt
  • 1x D3 washer

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Simple, functional and easy to assemble. What more can one want?

I wonder if it would be better inverted - ie the bearing pressing on the flat side of the belt?

I like it because it's simple :)

however tell me if you have to screw it after some uses ?

Nop, it's still working ;)