pic: Banebot P60 Failure

[thefro526]

Originally Posted by billbo911

Out of curiosity, did you have the end of the shaft supported?

The end of the shaft is not supported right now, but the point where the sprocket attaches is only about 3/4" from the face of the gearbox. There isn't really any way for us to support the end of the shaft, and we're not sure if we need to yet.

Originally Posted by sanddrag

And can we get a picture of the whole arm?

I don't have any pictures of the arm handy but here is a video: http://www.youtube.com/watch?v=s8SR93PZ_Ac

I believe that the gearbox failed during testing of our aluminum lower link fix. The arm is geared to approximately 90* per second max speed, and at that speed I abruptly reversed the arm causing one of the gearboxes to fail. We plan on limiting the speed of the arm once all of the sensors are installed so that this can not happen again. Strangely enough the arm was put through nearly 40 cycles after that test and there was some binding when un-powered, but powered the arm worked fine.