union jubilee modification

[johnd123]

hi all new here
i have a union jubilee which i hope to convert to variable speed a have 220v in workshop

anyone done this
i also modified it and can now swing 8" over the bed
i will see if i can post pictures on here just to show anyone thinking of doing the same they might be of help

 

[Farmer Giles]

High John
I've put a VFD on a Chipmaster lathe and a Tom Senior Mill and had variable speed, reverse jog etc. working. I'm currently fitting one to a Viceroy lathe. The VFD will be fed by the original actuator but with a new on/off switch around the side. The original on/off switch will control the VFD and I'm putting a pot next to the old on/off switch to control speed. I'm not bothering with jog or reverse on this one, but will add a rev counter to the main shaft.

Cheers
Andy

 

[minilathe22]

Yes its a popular modification to wood lathes as well as many other machine tools as John has said.
Make sure if you are using reverse, that your faceplates/chucks can unwind unless you setup some way of locking them from rotation when in use (eg. grub screw).
I have a Union graduate with forward/reverse, variable speed, emergency stop and rev counter.
Tim