1986 Quadzilla Gearbox

[Alpha Beta]

Originally Posted by SuperNerd256

But why 4 motors? Ours works awesome with only two.

2 motors would get the job done. 4 motors were possible, so instead of saying why, we said why not. We still haven't settled on which iteration will make it on the final bot. Added advantages could include saving valuable seconds in autonomous for a shooting wheel to spin up, and the ability to shoot consecutive shots with less recovery time.

With a lathe we were able to pressfit a piece of steel that allowed the 0.125" motor shaft to accept the 14 tooth CIM pinion. This opened up a world of possibilities for 20 dp gearboxes with only minor modifications to the faceplates. Many of the 32 dp gearboxes designed for these motors were/are in short supply.

Free speed of a BB 550 is reported at 19300 RPM. Toughbox as pictured here was the standard 12.75:1 reduction. Lots of other gear ratios are available for the Toughbox if needed. Before breaking in the gearbox it ran the output shaft at 1330 RPM. That is about 87.9% efficiency. Not too shaby for our first ever modification of a gearbox.

PS. It is not all that quiet. We're also considering how much power it would take to make a minimal robot fly. Some year that's got to come in handy.