[Dj863]

Hi guys just a new member here (although been looking at the site a few years).

Currently converting a c0 micro lathe to cnc. Got the z axis done ok using a ballscrew but the X axis causing me a nightmare!

The saddle is so small to fit a ballscrew through I tried an 8mm T8 leadscrew assembly but the backlash is horrendous.(around +-0.25mm)

It's really difficult to find an 8mm ballscrew setup online so was wondering if any of you guys have any design ideas apart from machining out the saddle which I want to avoid.

Thanks.

[cncmakers001]

Hi guys just a new member here (although been looking at the site a few years).

Currently converting a c0 micro lathe to cnc. Got the z axis done ok using a ballscrew but the X axis causing me a nightmare!

The saddle is so small to fit a ballscrew through I tried an 8mm T8 leadscrew assembly but the backlash is horrendous.(around +-0.25mm)

It's really difficult to find an 8mm ballscrew setup online so was wondering if any of you guys have any design ideas apart from machining out the saddle which I want to avoid.

Thanks.

Maybe you can consider adding an anti-backlash nut assembly.
Which is designed to minimize backlash by preloading the nut against the leadscrew.