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would muffin fans make the difference?
Posted by Anton Abaya at 1/26/2001 8:51 AM EST
Coach on team #419, Rambots, from UMass Boston / BC High and NONE AT THE MOMENT! .In Reply to: It varies... Posted by JVN on 1/25/2001 8:28 AM EST: : : Anyone have a good rule of thumb on when to change out a used drill motor? Meaning, how many : hours or minutes of hard driving ( HOT motors ) can a motor take before efficiency begins to : drop???? : Depends on what kind of conditions your running them under... Usually ours last about 45 minutes : before they get hot, after which we just stop the robot, let em cool for 20 minutes, then continue : testing. : We also weighted down a previous years robot with about 200 lbs. of weight and drove it : around/up the ramp. It only lasted about 20 minutes before it got REALLY hot. Those conditions : could never really be repeated in the competition. : Usually we don't switch em out unless they get visibly slower/weaker (maybe once 3 years ago). : If you just give them a chance to cool, we found they don't give you many problems. Gear boxes are : something completely different. Ever seen a liquid plasitc drill gearbox? : ~John #250 although we never had problems last year because we made heatsinks that looked like wings, i was hoping to mount some muffin fans on them babies this year for the heck of it... will that solve the problem? or must i hide some liquid nitro in there somewhere? -anton |
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