OK thanks I'll get it preloaded before testing then. Atlas recommends 1/16" turn (equivalent to two spindle gear teeth). so i will try that.

Its interesting that you recommend to remove the preload if its not being used, being able to look after and set up the machine correctly seems to be more important than knowing how to use it!!!


Thanks for the offer to regrind for free, maybe when your well enough and have finished all your over projects that have been stacking up eh...

With regard to the brinelling is it the rollers that deform or the races? (or both?)

If you don't mind me pestering you (or anyone else in the know) I also have another problem that I'm not sure of the best way to resolve. on the Halifax lathe the apron drive cog and reducing bracket was broken and there is a small groove under the rack were the cog had been rubbing the bed. I have replaced it with the atlas one but when the gibbs are tightened the same thing happens and the drive goes tight and binds.

The easy solution that I can see is to put a thin piece of shim steel on the side of the way to push it over a bit,(not sure how to secure it tho). Or the better but harder option is to pocket the mounts and sink the assembly in a bit. I did think of milling the bracket down but as its made of ZAMAK I didn't want to weaken it.

Do any of those options sound feasible? or have a missed a blindingly simple alternative:heehee: