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Gripshift Handles for Shimano - Parametric — image 1
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Gripshift Handles for Shimano - Parametric

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Gripshift Handles for Shimano - adaptable to other diameters and teeth count/geometry.

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Creative Commons — Attribution — Noncommercial

Gripshift Handles for older Shimano Shifter that I designed to replace the broken rubber handles. The shifting mechanism has 12 teeth to lock onto on an 31/28mm diameter. The model parameters can be changed in the spreadsheet. I added fixed offsets in the sketch that worked fined for me (0.1/0.2mm on the inner diameters).

Printed in PETG on Bambulab A1 due to lack of TPU. If printed in TPU the outer diameter front (OdFront) can probably be reduced to ensure a better fit with the original handles. 

  • 0.2 Strength profile as basis
  • 100% infill (probably not required as there is no infill)
  • Wall Generator Arachne for less radial interruptions