Quote:
Originally Posted by gc_coxen
1. We were trying to maximize use of COTS, so those are AndyMark AMS Cluster Hex Shaft (am-0302).
2. Is there any reason to add a plastic cover? Seems like unnecessary extra weight.
3. I came back part way through the render queue and regretted using the powdercoat texture, looks awful. Oh well.
4. There is only one bolt that uses a nut, the rest of the bolts go directly into the cims. I thought I'd be better off with a locknut vs. a tapped hole.
5. We currently have the parts for a single speed configuration, although I think a dogshifter would be possible. As long as the edge of the CIM doesn't interfere with the standoffs holding the pancake piston.
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Sounds fair! Good reasoning for using the shorter shafts, sounds like you'll save a lot of money/time if you make this.
I assumed you made the pates so large (the size of the gears OD) so that you could protect it or something. If you're not interested in using a cover, you can bring the edges of your gearbox to the bearings rather than the OD of the gears, unless it's an aesthetic choice.
EDIT: 16ft/s free speed isn't too fast IMO, especially if you run 6 CIMs. On a 4 CIM drive your acceleration suffers, but 6 CIMs will make the difference.