Quote:
Originally Posted by thatmorman
they were telling teams at the Portland regional that had used their extra cims from last year to change them out for this years or they would be disqualified... it was the dumbest thing ever because multiple teams had used previous years motors... im not exactly sure what all happened, but thats what the inspectors were telling us...
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<R58> Motors, pumps, and, Robot Controllers from previous robots shall not be used in addition to those provided in the 2008 Kit Of Parts.
They may be used as direct one-to-one SPARE PARTS for those provided if the provided part fails or is damaged. They can only be used if they are identical to the part being replaced.
So yes, the inspector was correct as Jim pointed out. Last year's motors, although identical, could only be used as spare parts replacments. GP dictates you follow the rule and inform the RI when asked. With the large influx of rookie teams and teams on a budget, we must maintain this type of rule.
Teams were reporting to me a greater direction bias than we experienced in that past with these motor.
Heat does change the power curve by either damaging the armature wiring (shorting some of the turns) or by altering the magnetic structure. Extreme heat may also damage the brush assy and warp the metal internal to the motor. Over time, an improperly supported shaft with significant side load, will also damage the bearings. CIM motors are not intended to have large side loads, the bearings are only bronze sleeve.