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Herringbone gear rack and pinion

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Creation's quality: 5.0/5 (3 votes)
Evaluation of members on the printability, utility, level of detail, etc.
  • 4.6k views
  • 12 likes
  • 482 downloads

3D model description

This is a herringbone (a version of the double helical) gear rack and pinion, remixed from a single helical rack and pinion by janssen86. The doubling up of the helical teeth removes the axial thrust of a single helical gear and also helps keep the gear centered.

I printed a test print prior to using this as a component of a bigger project, but found that both I and my kids also enjoyed this as a fidget toy! There is something quite satisfying about how nicely the pinion stays on track on the gear.

No supports needed. I printed at 0.20mm resolution with a 0.40mm nozzle. Note that in the current version (not the one I printed) the pinion prints upside-down relative to the rack. This is deliberate, as the bottom side gets squashed a little, and this should symmetrize the squashing. The squashing made my test print not align so nicely. I should do another test print at some point.

  • 3D file format: STL
  • Publication date: 2018/10/09 at 14:05

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CC BY NC SA


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