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Unread 11-02-2011, 12:50
jreuter jreuter is offline
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Re: Smoking RS-550 motors

Wow, great responses. I can't wait to tell my students about baby smoke.

The motor is still working, but I have no tools to tell how much it has degraded. There was a very noticable burnt motor smell, and subsequent runs made a little smoke each time. I will check tomorrow, after a cool down.

I agree that with real-life efficiencies, we are probably running much further down the power curve than we want. The fact that we are getting 300 RPM out of it says that it can't be too far down the curve.

Hopefully fixing the binding problem will move us to the left side of peak power, and stop us from pumping 100W into the little guy. Still, I'd think you should be able to run a motor at 40% free speed RPM/60% stall torque all day.

With regard to peak efficiency, we were not even trying to operate at that point.

Also, we have a separate brake system, so at no time were we holding torque with no motion.