Hi John
Thanks for the reply.
I have not split the nuts as yet.
I made some adjustments last night and managed to get the x axis down to about 0.001" but its really stiff so I might have to back it off a bit. The y axis is really sloppy. I see another strip down coming on.
I had a look at the link you sent me on the ball screws which was really helpful (I am certain I had a look before and couldnt find anything).
My main worry about using the 16 x 5 is the size of the nut, but many people seem to have done it.
The ballscrews on ebay look like they could be conventional machined (ie not ground) the material is 16MnCr5 which looks feasible. Anyone tried?
Clive |