NOW SOLD.

I am considering selling my Denford Triac ATC. The machine runs from Mach 3 with full control of the tool changer, coolant, light. Excellent condition, has had very little use. Comes with Dell PC, mobile compressor, lots of tooling, clamp set, vice etc. PM me if you are interested. Pics available on...

Trouble with worm is how do you preload it to take out the backlash but with minimal friction? One route could be to use a recirculating ball arrangement like the old steering mechanisms - effectively a ball screw where the "nut" is replaced with a worm wheel. I'm not sure if these can be bought, l...