Bad MiniCIMs... failing to consistently start?

[Michael Corsetto]

Originally Posted by ThaddeusMaximus

These motors were ran with adapters that caused lots of noise, originally, so I'd imagine that's what really caused them to fail, since we were noticing similar behavior but never really bothered to investigate. I think swapping to the new hex adapters (which reduce noise to only the sound of air flowing) will vastly improve motor life, since they'll be taking less radial loads.

You appear to be assuming that, because of your improved set up, "less noise" means "less radial loads". This is not the case. In fact, load could be transmitted more effectively to the motor shaft in a tighter set up with less slop. It could be that your new set up is actually worse for the motors, even if you get better results (less noise, stronger shot, etc.)

-Mike