pic: Modular Gearbox

[Ari423]

Originally Posted by Chris is me

Any way you could move to maybe 3/4" wide tube instead of 1" tube? At the moment its not very compact, and this would thin things out a bit.

The tubes there are actually 1.5" wide. Inside each tube needs to fit one gear (.5"), one shaft collar (.25"), and two bearing flanges (.0625" ea). 1" tube with a .100" wall gives .8" of inside width, which is .075" too small to fit everything. I was able to reduce the outside tube width to 1.125". I could further reduce it by removing the shaft collar and replacing it with two retaining rings, but that would require the shafts to be machines which I didn't want to do.

You can see the updated model at the same grabcad link.