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Originally Posted by jonboy
Just got our Banebot transmissions and noticed that the air duct of the motor near the output shaft is blocked by the Banebot transmission. The FP plastic transmission has some holes to i assume let cooling air flow. The question is at what loads and duration at room temperature is this detrimental?
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No data that I am aware of for exactly the effect this will have on the lifespan of the motor. Obviously, it will limit airflow, as a good deal of air does flow out of those front vents.
My suggestion may come to late, but if you can permit some standoff between the front of the motor can and the transmission, obviously airflow would be better. By using longer screws and some very small spacers it would be easy enough to move the motor back. This would require that the pinion be hung out at the end of an unmodified motor output shaft, and you'd probably want to support the end of the motor can to keep strain off of the very small and very weakly threaded attachment screws.
As for 885, we are just hopping that the motor will make it through. In the end, the way FP motors die pretty much negates air flowing through the front vents. If a FP motor dies, its because it stalls and there is no fan moving air period, and all the venting and heat sinks in the world won't help you. A slow, gradual death from heat build up is probably a lot more rare.
Give the motors time to cool between matches, and invest in some canned coolant.
-Andy A.