Originally Posted by
photohoward1
Spec a motor size and length. Going to be tough though. My plett is Fatter but shorter than a 2280 but about the same wattage. Maybe we can spec wattage?
Specing a motor mass makes things a lot easier, the thermal mass dictates the rate that it will heat up, and would maintain energy parity between similarly efficient motors irrespective of diameter, length, and cooling solution. If you want a long thin Nue that is no problem just keep it under 800g (or whatever), 2280 no worries <800g, short fat TP no worries just keep it under 800g, want a fancy LK with cooling fan built into the motor, go ahead, but the weight it takes up mean you will have less copper and/or magnet, so you still get similar power.
The only issue with it is that more efficient motors of a given mass can produce more useful power before they overcome their ability to dissipate waste heat, just as size limited motors do, so it gives advantage to more efficient motors which tend to be more expensive. Open motors would not have that issue but would allow for much greater than .60 performance, and possibly faster than scale speeds.
Paul Upton-Taylor, Greased Weasel Racing.
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