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Unread 21-10-2005, 00:55
Unsung FIRST Hero
Mike Betts Mike Betts is offline
Electrical Engineer
no team
Team Role: Engineer
 
Join Date: Dec 2001
Rookie Year: 1995
Location: Homosassa, FL
Posts: 1,442
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Re: Victor 884 won't go forward

Quote:
Originally Posted by Manoel
...We have a lot of dead Victors...
Manoel,

Be advised that I have been mentoring Team 177 since 1995 (before IFI and the Victor existed). We use between 7 and 11 Victors per robot and some years we build two robots.

We have only failed two Victors in all that time. Both failed due to metal shavings falling into the FET heat sink assemblies (beneath the fan).

If I were you I would re-look at the "dead" Victors during the off season...

My students have reported many "failed" parts that were not failed. Bad or loose PWM connections are the primary electrical reason for these reported "failures". Other "causes" have been mechanical binding of the motor, software and cables/wires going where they shouldn't.

In my humble opinion, the Victor is a highly reliable part.

Regards,

Mike
__________________
Mike Betts

Alumnus, Team 3518, Panthrobots, 2011
Alumnus, Team 177, Bobcat Robotics, 1995 - 2010
LRI, Connecticut Regional, 2007-2010
LRI, WPI Regional, 2009 - 2010
RI, South Florida Regional, 2012 - 2013

As easy as 355/113...