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Unread 14-03-2012, 23:32
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Nuttyman54 Nuttyman54 is offline
Mentor, Tactician
AKA: Evan "Numbers" Morrison
FRC #5803 (Apex Robotics) and FRC #0971 (Spartan Robotics)
Team Role: Mentor
 
Join Date: Jan 2005
Rookie Year: 2005
Location: Seattle, WA/Mountain View, CA
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Re: pic: FRC971 Spartan Robotics Presents: Renegade

Quote:
Originally Posted by tzjin View Post
I'm a tad confused about why you feel a need to cool your CIM's that much.
Edit: See Kevin's comments above.

The team noticed in 2010 (the first year we ran with these speeds on the driveline) that during the quick turnarounds in eliminations, the motors started to get quite hot, and became much less efficient. I believe they were noticing battery voltage drops towards the end of every match. The driveteam took to fanning the motors between each match. They added the fans after the season, and saw a measurable improvement, especially at demos. Our robot last year used the fans as well, and they feel it's been very beneficial. Somewhere on CD is another post explaining this (by either Austin Schuh or Scott Bahl, IIRC).

I think that's all correct. One of the students could probably answer this better, but I think they're all busy packing and driving to Sacramento right now. I'm sure they'll add more detail later.

As a long distance mentor, I don't get involved in all the details of the robot, although I do know most of it. I've challenged the students this year that by the time they get to Championships (the only tournament I can attend with them) that they all know more about the robot than I do. Most of them are already there .
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