bridgeport spindle motor replacement 1phase

[smallplanes]

Could someone post the instructions on how and what i need to build my own rotary converter? I'm going to get a bridgeport style mill now and later i would like a small lathe. The mill has a 2-3hp motor on it but not sure have not looked at the tag on motor yet. Could someone tell me where to look on ebay for parts and rotary converters? Thanks for all the help guys.

Thanks
smallplanes

[Al_The_Man]

Originally Posted by smallplanes Could someone post the instructions on how and what i need to build my own rotary converter? Could someone tell me where to look on ebay for parts and rotary converters? Thanks for all the help guys.

Do a search for 3ph converter in these forums, I recently posted the links to all the instructions and supplied some PDF info. You need a selection of caps, rated for AC motor run grade for tuning and a 4pole three phase motor hp rated at least the same size as the one you want to run.
Al

[smallplanes]

Thanks for all the help guys but i did not get the machine with the 3 phase motor on it. I went to harbor freight tools and bought a mill/drill machine with a 2hp single phase motor on it. I got it with out the stand so i'm going to have to make one. I ordered a set of rotary phase converter plans off ebay so i might still rig up a phase converter you never know when you might need it. Thanks again for all the help.

Thanks
smallplanes

[jdelaney44]

This is a question based on getting a single phase motor due to a lack of three phase power in your shop, yes?

I did a bunch of research on this a year ago. I asked motor rewind shops, talked to a guy that added shafts to motors, and looked at doing some kind of an ugly jack shaft rig to fit a common 2hp Baldor onto my J head, and buying a $250.00 VFD. I bought the VFD and I've never been more pleased with something electrically powered in my life. I've only just begun to exploit the VFD's capabilites too.

-jd

[Swede]

Smallplanes, I replaced my 1.5HP 3P motor with a 2HP 3P motor and VFD. It is a SWEET setup. If you can afford it, may I respectfully suggest this is the way to go for a home mill. I'd NEVER go back to step pulleys after using the VFD. I can provide you with a retrofit link for a VFD setup if you'd like.

Good luck!