Team 449 Climber

[T^2]

Originally Posted by Oblarg

Are you sure? The 50:1/mini-CIM combo is labeled as acceptable by VexPro's documentation, and as noted above we're not actually anywhere near the peak loading on it.

Catapult failure in first 2014 regional, canburglar failure in second 2015 regional. Similar physical setups.

[Oblarg]

Originally Posted by T^2

Catapult failure in first 2014 regional, canburglar failure in second 2015 regional. Similar physical setups.

Any gearbox suggestions, then?

[T^2]

Maybe custom if you have resources. Vexpro CIM gearboxes would work, but bulky because you'd need two reductions.

[Oblarg]

Originally Posted by T^2

Maybe custom if you have resources. Vexpro CIM gearboxes would work, but bulky because you'd need two reductions.

We don't have much in the way of machining resources at all (miter saw, drill press, and a little hobby lathe), and the drive gearboxes would be an absolute nightmare in terms of space/weight.

I think I'd rather try to add a 2:1 reduction or similar via. chain to reduce torque on the gearbox if this proves to be problematic.

[Ari423]

Originally Posted by T^2

Catapult failure in first 2014 regional, canburglar failure in second 2015 regional. Similar physical setups.

Are you sure you were using the VersaPlanetaries correctly? I've used them a number of times without problems and I've pretty much only heard good things about them. Were you properly greasing them? Did you check the max loading guide before choosing a reduction? Did you assemble them in highest to lowest reduction order? Did you support the end of the shaft?