Group,

I am wanting to build a fourth axis for my machine ( an upgraded 1985 SuperMax YCM-30 ).
This seems to be on of the most knowledgeable groups - so I figured I'd pick your brains first before I start out on this journey.

I'm thinking of buying a 6" or a 9" rotary table from Enco.. something with a 90:1 ratio.

Has anyone here done this?
Some questions:

What did they do about the backlash? How did they take it out ?
Did the further reduce the gear reduction?
What driver are they using to control it? (I'm thinking of using a stepper on it...and driving it with a Gecko drive... )

Any help is appreciated.

Thanks,

Joe