2:1 Herringbone Rome Gear by MaskedRetriever 3d model
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2:1 Herringbone Rome Gear by MaskedRetriever

2:1 Herringbone Rome Gear by MaskedRetriever

by Thingiverse
Last crawled date: 2 years, 12 months ago
Oh yeah, that's right. Herringbone gears.
These are hard to machine with conventional tools, but on a 3D printer they should pop right out with minimal fuss. Wikipedia claims they're quieter and have a number of other advantages over conventional spur gears.
If my numbers are right, two of these should mesh with each other in a 20-tooth-to-20-tooth configuration AND a 10-tooth-to-20-tooth configuration...

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