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Unread 24-06-2014, 08:05
Unsung FIRST Hero
Al Skierkiewicz Al Skierkiewicz is offline
Broadcast Eng/Chief Robot Inspector
AKA: Big Al WFFA 2005
FRC #0111 (WildStang)
Team Role: Engineer
 
Join Date: Jun 2001
Rookie Year: 1996
Location: Wheeling, IL
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Re: Motors: Past and Future

Back in the day we called them "Chalupas". Please remember that these are designed as intermittent duty motors for lifting trailer tongues onto hitches. They are sealed to provide some weather proofing. The drill motors were discontinued because they were replaced with another design.
Magnets, Rich is a motor guy by day and my motor reference person. when he speaks, listen. I am thinking we ran two CIM and two FP motors on that drive system. They were obviously geared differently. At that time, both the drill and FP motors suffered from low RPM, high current designs. What complicated things, as the temperature began to rise, the fan actually fell off the shaft or simply melted. Then it was a simple matter of thermal runaway. For some reason, drill motors also had a nasty habit of emitting flame when they failed.
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Good Luck All. Learn something new, everyday!
Al
WB9UVJ
www.wildstang.org
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Storming the Tower since 1996.