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FP Motor use
FP motors are great...when used inside of their , er, design envelope.
Inside of the envelope (for Team 86) means elimninating the last stage of gear reduction, making a steel hub for the second-to-last stage gear, and taking off power at a really useful RPM with a stub shaft. The sped is very close to the drill motor output shaft in low range. We have successfully used a FP and Drill motor chained in parallel.....very nice, very easy, very simple.
Motors that overheat are most likely being run way below their peak power and efficiency points. Close to stall speed always means heat.
Our only FP failures have been due to 1.) Driving off the bridge full throttle and pancaking onto the rug....major impact load on plastic gears. 2.)practice driving on asphalt where the same thing happens...wheel slip then grab impact loads the gearsets.
Knock on my head, no failures to date on the gearbox in competition. Did have a motor fail (smoke and stink and everything at 2002 KSC ....no motor autopsy results yet....I think it was a defect or fluke....it wasn't really being beaten on that hard when it failed.
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