Parametric Y-axis belt tensioner / vibration management

by byteborg, published

Parametric Y-axis belt tensioner / vibration management by byteborg Jan 28, 2012


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This thing reduces vibration of the Y-axis belt on my Prusa Mendel. Parametric SCAD file. Defaults are 8mm rod, 6mm ball bearing.



  1. print two times
  2. assemble the belt-side: screw, washer, printed part, fender washer, washer bearing, washer, fender washer, printed part, washer, nut
  3. thighten belt-side assembly with two sets M3x30 screws, washers and nuts or zip-ties
  4. mount on lower threaded rod on your Prusa
  5. tighten lower part with two sets M3x30 screws, washers and nuts

No more vibrating Y-axis belt.

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Awesome stuff, going to print one of these to give a little more room for my power supply under the bed. :)