pic: Banebot P60 Failure

[Lowfategg]

Another thing to look out for is the roll pins that hold the outer ring gear to the front plate. The wall on the roll pin holes bend and lets the flats on the ring gear slip which ends up rounding the whole front of the gear. I can see it already happening to this gearbox.

Install a torque limiting sprocket to take care of some of that shock load at ends of travel if your using chain.