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Would windscreen wiper motors work? I know it sounds dodgy but they have a lot of grunt for their small size, have low rpm, 12v or 24v and can be found cheap. I've seen people make electric wheelchairs from wiper motors...
You could use 2-4 if necessary.....
EDIT: A quick google shows a lot of wiper motors operate around 50rpm with torque around 20nm. Sounds good. I believe with a PWM speed controller you can maintain the torque but slow the motor if needed.
Last edited by davewaldo; 24-04-2010 at 11:58 PM.
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