pic: WIP 3 CIM 2 Speed All Belt Cim Above Tube Gearbox

[Colin Small]

Originally Posted by KohKohPuffs

Also, the other issue that would come up would be connecting the piston to the shifting rod. Tried that once, and I hated it. You could add a third plate for spacing like what 254 did with their gearbox this year. Then piston-wheel collisions wouldn't happen anymore.

Just some things that I thought of, having designed 3+ of these inverted gearbox. Hope this helps!

Not quite sure what you mean by a third plate or piston-wheel collisions. The cylinders are contained inside the gearbox so they won't be hitting any wheels.

Anyways, I like your design! I want to try doing the ribbing between mounting/clearance holes but it's never worked out well for me.