An isolation transformer is a good idea but isn't needed if you earth the frame of the motor and all other exposed metal parts.
I am still confused about this 'earth' thing. To me that means I buy a copper clad stake that's about 5 foot in length and drive it into the ground somewhere near the motor and connect the case of the motor and all other metal parts to it.
Is there another meaning for "connecting to earth" that I don't know about?
As an update, here are the pieces I have ordered to build the "Exercising Santa" display:
Motor:
**broken link removed**
Isolation Transformer:
**broken link removed**
Motor Speed Control:
**broken link removed**
When I get all these, I'll put together a schematic and ask your opinion before I wire everything up.
Thanks for all your help with this.
Ken
BTW: Did you ever have one of the "I coulda had a V-8" moments where you slap yourself on the forehead when you realize the opportunity you just missed. I just had one of those this morning.
Last week I gave away a treadmill that I no longer needed. I had purchased it for $10 at a yard sale and it worked pretty well, but the monitoring electronics didn't work, so I thought I'd pass it along. Then, this morning while searching eBay, I found this:
**broken link removed**
Duh!?!?!
And that even uses standard pulleys and belts instead of the #25 chain & sprockets on that motor I bought.