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Unread 12-02-2012, 15:07
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EricH EricH is offline
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FRC #1197 (Torbots)
Team Role: Engineer
 
Join Date: Jan 2005
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Re: Getting more range out of a 4 wheel shooter

Quote:
Originally Posted by Coffeeism View Post
The RS775-18 runs at 19500 RPM with no load at 18 Volts.

It runs at 13000 RPM with no load at 12 Volts.
Which explains why it was running faster than a CIM after going through the CIM-U-LATOR... I pulled the specs from the BaneBots website, but didn't see the 12V free speed listed.

The ratios, however, still stand--removing the CIMple box from the equation will have a significant positive effect on the speed, and a corresponding drop in torque.
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Past teams:
2003-2007: FRC0330 BeachBots
2008: FRC1135 Shmoebotics
2012: FRC4046 Schroedinger's Dragons

"Rockets are tricky..."--Elon Musk