Thread: Team Update #18
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Unread 18-03-2011, 13:51
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Re: Team Update #18

Quote:
Originally Posted by JesseK View Post
Here's a fun image, generated here. Red line is Ether's theoretical diameter, and the motor load is indeed at max power. Yet the iterations show that a slightly different diameter can squeeze out a bit more due to acceleration being a slightly larger-than-anticipated factor.

Assumes:
Battery voltage of 14.4V
6755 RPM Free Speed
0.095 Nm Stall Torque
(Extrapolated the stall/free currents based upon a realistic efficiency curve)
2 motors

100% wheel-to-pole efficiency
direct-drive minibot straight off the motor
2.3 lb weight
Minibot goes exactly 7.5 feet straight up
This graph matches our experimental results. Our climb time was minimum at .40" dia.
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