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Posted to sci.electronics.basics,sci.electronics.repair,rec.crafts.metalworking,alt.engineering.electrical
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how to bypass dremel tool internal variable speed control?
Just take it apart, I'm pretty sure it's just a "potentiometer"
(variable resistor) so it would only have 3 leads, one from the external wire to the pot., one from the pot to the motor, and one from the other external wire to the other lead of the motor. Cut things off, plug the external leads directly to the motor. Unfortuantely it doesn't seem that simple. The speed control has what looks like a some kind of semiconductor/IC (3 leads), a diode, and maybe a fixed resistor in addition to the slide pot. I don't know if they're doing pulse width modulation or what. |
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