I believe that the Jet 1442 motor is a standard type induction motor. This
type of motor is frequency dependent - it's speed is governed by the power
line frequency. Trying to reduce the voltage being fed to it won't change
the speed until the motor's power reduces to the point where it doesn't have
enough power to keep up with the power frequency. If a load is applied and
the motor cannot rotate at the speed governed by the power line frequency
the motor will likely overheat and burn up very quickly.

If you want to change the speed bad enough you can either buy a 3 phase
motor and a variable frequency drive to run it, or a DC motor and a DC
(direct current) power supply for it. Either way you will be spending
hundreds of dollars to get this capability.


Charley


"Jimbo" wrote in message
...
I was wondering if it is possible to in any way to slow down the motor
on the Jet without damage to it.

It would be possible to make a "souped up light dimmer" which is very
doable but will it cause damage to the motor?

After getting into turning I wish I would have bought a lathe that
goes slower for larger pieces.


Jimbo