Quote:
Originally Posted by smartkid
This might sound stupid but where would you go looking for fans / propellers? And what kind of gearing would get a CIM to spin the most efficient.
EDIT: Talking about using this to give a drive a little boost not to push an entire bot around.
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This is an R/C fan that generates 4N, but spins at a pretty crazy RPM to do so:
http://www.modelflight.com.au/rc_mod..._micro_fan.htm.
I think it would be worth your time putting a standard house fan on a physics cart and use a spring scale to see how much force it generates. Then you could maybe replace the house fan motor with a CIM and speed it up a bit.
Again, I note that you probably don't want to invest too time or money in this idea unless QA says it is legal. Their "only traction must come from rover wheels" rule could potentially be interpreted (FIRST has reached pretty far in their rule interpretations in the past) that you can't get thrust from fans either.