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Any safe way to gear down a grinder?

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Hawkdancer:
Is there any safe, practical, (and inexpensive) way to gear down a standard grinder-polisher?  I am getting too lazy for manual sharpening, and my grinders are high speed.  A slow speed sharpening rig is 2 or 3 C notes or more! And the tax man cometh!
Hawkdancer

Pat B:
Add a large pulley to the grinder motor and an off set frame with a small pulley on it driving the polisher.

Woodely:
A electric  fan control may work or a dedicated speed control a cheap one could cost $60.  Controls are adjustable so you can vary your speed and find a happy medium no matter what you are grinding.

Pat B:
Maybe a rheostat if the motor can take it. It might be a little cheaper.

Woodely:
You probably know more about electrical stuff than me. :)  ya; a rheostat  that could work.

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