BallNuts, 1,2 or a double.

[irving2008]

Backlash not really a problem on lathe as you're always approaching cut from same direction, so I wouldn't get carried away on this.

[Stupoty]

I'm trying to do a geometric capable build, so am interested in it being fairly low.

I can always limit it to plain turning if it doesn't work out well. :)

Stuart

[Robin Hewitt]

The cheap double nuts are shimmed so the low backlash quoted lasts until it beds in.
Springing nuts is a right royal pain in the backside but if you have gone anal on backlash then you don't really have an alternative.

[Stupoty]

Ok so the pre-loaded ones arnt adjustable to take up ware in them?

(sorry if thats a dim question)
:)

Stuart

[Robin Hewitt]

I may be out of date, been a few years since I bought ball screws.
You can fit oversize balls, that really stiffens them up, but nothing I know lasts, except springs.

[Boyan Silyavski]

The Chinese ball nuts are actually back slash free. I would get a double ball nut if i was so worried. These are not the Chinese ball nuts like before 4-5 years, when they were back slashing.

[Stupoty]

The Chinese ball nuts are actually back slash free. I would get a double ball nut if i was so worried. These are not the Chinese ball nuts like before 4-5 years, when they were back slashing.

Hello,

thanks for the info.

what is cross compatability like? If i ordered screws and nuts and then decided somthing wasn't working so well would I be able to buy any brand and mix and match or would that be problematic?

Stuart