Chuck sez:
"I also could not get a nice finish with the single phase motor.. . . "

Musta been something else wrong as well. Come to think of it, I did replace
the original set of belts with a "USA made" set. (Thanks to Grant Erwin for
the suggestion) That helped a great deal with the vibration problem. Hard
to imagine you went through 3 motors, though. Maybe it was a "Jet" thing!
My mill-drill is an old one, Wrong-fu, I think. I can not imagine any
problems such as you mention that could be caused by only the motor. Anyway,
glad to hear all is well with VFD power now. At the least, you have to
think it is OK after spending all the bux on a VFD!

Bob Swinney

"Chuck Sherwood" wrote in message
...
Don't bother changing out the motor to 3-phase and getting a VFD. IMO,
it's
not worth the expense. Moving belts on pulleys isn't that big a chore;

I disagree. The 2hp motor that came on my Jet mill drill was a real POS.
I went through three of them before giving up and buying a leeson motor.
THe single phase motor makes the whole machine jump when it starts.
The VFD starts very smooth. This machine can now mill a slot with a nice
finish using the side of the endmill.

To protect your nice new table, get some black floor runner from the
hardware store and cut some pieces that cover the table next to the
vise. This prevents dings when you drop something and might even save
the corner of an endmill if you drop it. It also provides a nice place
to put thing and prevents them from going into the T slots.

chuck