Is this a good idea? Putting Penn State DC Motor on die filer?

[Alan H.]

Actually we don't know the motor rpm. We only know the rpm of the spindle based on the assumed pulley setup. Assuming a penn state lathe.
I think they should have posted the motor rpm, for a clear conversion as well.

Now that I look deeper, you're correct. As you point out, we have no idea what lathe or basis they're using.

Regardless it still is not going to have the turn down that I am after. Must be a crappy speed control as suggested by Mark.

 

[Silverbullet]

Watch around your town on trash day , lots of the treadmills there's nothing wrong with the motor or control. You can do it . Or you can buy a commercial sewing machine 1/2 HP set up. There only a $100. Delivered.