Dead cim

[Racer26]

1075 was experiencing some of our first CIM issues at the end of Waterloo regional this weekend.

I think this must have been a progressive failure, as they were still *working*, just not working *well*. We're using them in a 2+2 Swerve configuration, I'm unsure of the gearing, but its reasonable.

They were used all weekend at FLR, and then all weekend at WAT, plus whatever testing we did back in build. Everything seems free, so we dont think anything is binding. Its the first time we've seen the CIMs failing in 8 years of FRC.

[Grim Tuesday]

We burnt out all four CIMS in our 2010 robot during driver practice. One the alumni was acting the aggresor with another one of our robots, and, though I wasn't there, they somehow managed to start a small fire in the robot.

[joek]

we have been re-using our cims for 5 years now, and have not had a single one burn out. we have more of a problem with burning out controllers, as we have 3 or 4 bad victors. that said, we almost always have them run through a 12.75:1 gearbox. the only exception iknow of was 2009, where we used 2 cims to run a pair of stacked 6" 07'-08' KOP wheels; they were actually geared up slightly.

in any case, you want to be careful when working around motors or electronics, neither like metal shavings in them. we always tape off our RS and fisher-price motors when working around them, and vacuum out the area when done.