[zinthorne]

This happens to our team all the time. We do not know why. I can look for some pictures. We check all of our snap rings are put on very well because of this problem, but they still occasionally come loose. We have had it happen 3-4 times this year on our competition bot and more in build season. A way to combat it is always test your gearboxes after every match. They will still usually run ok when the snap ring comes out, but will start only running part of the time(When the gears come out of contact) Also the shafts tend to fall out on us so that is a good indicator...