|
Taken from the 2002 manul:
M17. The motors in the kit may not be modified except as follows:
• It is acceptable to modify the mounting brackets and/or other structural parts of
the motors (output shaft, housing, etc.) as long as the electrical system is not
modified and the integral mechanical system of the moving parts (bearings,
bushings, worm gear output stages, etc.) is not changed or removed.
• The gearboxes for the Fisher-Price, Drill, and Globe motors are not considered
“integral” and may be separated from the motors. FIRST will not provide
replacement for parts that fail due to modification.
The way I read it, it is legal to drill holes in the motor. However, I think that the extra cooling it might provide is offset by the chance of damaging the motor, either while drilling or when crap gets in it. Stick with heatsinks to avoid any problems. They look cooler anyways.
Also, be aware that these are 2002 rules, and are subject to change in Janurary.
-Andy A.
|