pic: Flaming Monkeys 2016 Power Take-Off Gearbox

[Zaque]

Originally Posted by asid61

What made you go with a custom ballshifter shaft over the COTS options? What made you go with a belt pulley output over a shaft or sprocket output?

The main driving factor was actually price. These gearboxes are about half the cost of the rocketboxes or WCP DS with PTO. We also wanted the ability to fine tune the reduction and keep it compact while retaining 3 CIMS. The design we came up with required the ball shifting shaft to be driven directly by the motors, so we needed a custom shaft to keep the size small.

We are not set on belt output (lift system is most likely waiting until after bag), it was just in there for spacing.

Let me know if you have other questions or if that explanation was unclear.