SPI Commutator Revision including Enclosed Motor Enclosure

[cjsha]

stl/step files for producing the relevant parts are in the spi commutator production folder

[jonnew]

I did a quick print and Im adding what I notice here

1. 1/4-20, M6 clearance holes are too small.
2. The new 1/4-20 holes on top of design are too close to an edge for the head of the screw to fit.
3. Move the new 1/4-20 holes on top over a bit so they dont almost interfere with the vertically oriented ones.
4. The swooping feature coming down around the slip ring has a sharp edge, filet that with a larger radius.

[jonnew]

The clearance hole for both 1/4-20 and M6 is 7mm.

[jonnew]

The little hole for the reset button is in the right place but needs to be slightly bigger. Also I would extend it to the bottom like in the last design just to make sure there is no chance it is pressed by a slight misprint. Bascially, if its extended to the bottom, it will be fine.

[jonnew]

Lets filet motor enclosure corner with the same radius as the blue corner

[jonnew]

There is no clearance between the wall of the motor enclosure and the motor. The gear needs to be made larger to move the motors mount position in the direction of the arrow.

[cjsha]

Thanks. I assume this pull request is an image of the repo from when I submitted it and doesn't reflect most recent commits. I will close this one and start another pull request with commits that take into account all these fixes for the SPI commutator enclosure.