pic: Inverted CIM Gearbox V3

[z_beeblebrox]

Originally Posted by aldaeron

Design Comment

I think the previous poster has the same thought, but your center CIM gear between the two other gears is asking for trouble. There will be some manufacturing tolerances and it will mesh well on one side and poorly on the other side and probably shred the gear teeth. No Fun.

An easy fix (can't tell if it's already implemented) would be to make the gearbox slightly asymmetrical so the center CIM pinion only meshes with one of the two gears next to it.

Edit: Rather than relying on the screws to position the CIM, why not use the boss on the front of the CIM to position the motor with more precision by shrinking the current clearance hole?