band saws
No it wont, your small high rpm/low torque brush motors are not cap start induction as most larger motors are. If a capacitor motor drops below 20% of designed RPM (eg 1750 rpm) then the centrifugal clutch kicks out and the capacitor/start windings come back online. I suppose I could defeat the clutch with a cut out switch after it powers up and then reduce the voltage with the rotary speed control, but that still wont work. Unfortunantly its not as easy as running a dimmer in series as the router speed control is. turns out the AC induction motor speed is based on # of poles of motor and line frequency so reducing voltage (dimmer) does not reduce speed. DC is different. I think only a $$$ variable frequency drive will control an AC induction motor electronically, and thats only if its a 3 phase. So mechanical gearing is next. I got an old drill press that I can get some reduction V-belt pulleys out of...and the bottom feed belt operation of this saw lends to an easy planar mount of the 2 extra double pulleys. I think the models that can vary the speeds are either DC driven or have a transmission.
No it wont, your small high rpm/low torque brush motors are not cap start induction as most larger motors are. If a capacitor motor drops below 20% of designed RPM (eg 1750 rpm) then the centrifugal clutch kicks out and the capacitor/start windings come back online. I suppose I could defeat the clutch with a cut out switch after it powers up and then reduce the voltage with the rotary speed control, but that still wont work. Unfortunantly its not as easy as running a dimmer in series as the router speed control is. turns out the AC induction motor speed is based on # of poles of motor and line frequency so reducing voltage (dimmer) does not reduce speed. DC is different. I think only a $$$ variable frequency drive will control an AC induction motor electronically, and thats only if its a 3 phase. So mechanical gearing is next. I got an old drill press that I can get some reduction V-belt pulleys out of...and the bottom feed belt operation of this saw lends to an easy planar mount of the 2 extra double pulleys. I think the models that can vary the speeds are either DC driven or have a transmission.
