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Unread 08-04-2014, 16:25
Thad House Thad House is offline
Volunteer, WPILib Contributor
no team (Waiting for 2021)
Team Role: Mentor
 
Join Date: Feb 2011
Rookie Year: 2010
Location: Thousand Oaks, California
Posts: 1,106
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Re: Main breaker tripping, dead CIM

We are running 6 CIM's on our drive this year. It was one of the best decisions we have made this year. We have played two districts this year, and have never popped the main breaker once. We are running 4" wheels with a 7.4:1 ratio.

One thing I've noticed is that many teams were gearing high in the past with just 4 CIM's. With 4 CIM's its harder to pop the main breaker. As soon as you bump that up to 6 CIM's, if you run the same gearing that wouldn't pop the breaker with 4 will pop for sure with 6. 6 CIM's really does need to be geared lower then 4 in order for this not to happen. And in essense, because of the MUCH faster acceleration, the time it takes to move across the field doesnt increase much as you lower the ratio and add 2 more CIM's, but the time it takes to move 1/4 of the field speeds up alot.
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Teams 1510 and 2898 - Student 2010-2012
Team 4488 - Mentor 2013-2016
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