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Re: Motor Controller
Let me put it this way: CIMs can pull an awful lot of current. Let's assume that you run 40A per motor, which (can be) low, so 80A for the pair, and send that through your motor controller (Talon, Jag, or Victor). Note that it'll take a bit for your circuit's snap-action breaker to trip, and it'll untrip as soon as it cools off a bit. (Or, you'll end up with a case where the CIMs are not performing like CIMs due to only getting 1/2 the current they'd like.)
If you get into a situation where those motors are having to work hard, you're probably going to be buying another speed controller anyways, to replace the one you fried.
That said: Talons, Jaguars, and Victors are not the only speed controllers out there. Some of them might be a bit cheaper; some a bit more expensive. It might be a good idea to do a little research. (Trying to remember a couple of brands I've been known to see used in a project--one will safety itself off and refuse to turn back on, one will not.)
Is there a particular reason that you want to run two CIMs off of one speed controller?
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Past teams:
2003-2007: FRC0330 BeachBots
2008: FRC1135 Shmoebotics
2012: FRC4046 Schroedinger's Dragons
"Rockets are tricky..."--Elon Musk

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