Rotating nut design out there?

[ssutton]

Does anyone know of a workable rotating nut (acme rod/anti-backlash nut) design that has been tested and proven for a CNC table? Thinking about machine #2 already.

Thanks,
Scott

[acondit]

Look at the rotating nut that I built for my X2 conversion (posts 4 and 5). It uses a ballscrew and rotating ball nut but the principle is the same. All you would have to do is replace the ballnut setup with a mount for the anti-backlash acme nut. You could use a smaller diameter timing belt pulley if you wanted.

Alan

[ger21]

This machine uses a rotating nut.
http://www.cnczone.com/forums/diy-cn...mentation.html

[Phife]

Originally Posted by ger21 This machine uses a rotating nut. http://www.cnczone.com/forums/diy-cn...mentation.html

I cant find a reference to the rotating nut on that link, you sure its this machine?

[prcdslnc13]

its not in that link but it is that machine. If you google the name of the machine it will come up.

[ger21]

Originally Posted by Phife I cant find a reference to the rotating nut on that link, you sure its this machine?

http://www.cnczone.com/forums/860630-post92.html

There's some info about it in a previous post in the thread, but the pictures from that post are gone.

[cyclestart]

Another recent spinning nut design
http://www.cnczone.com/forums/diy-cn...nc_router.html

Not an anti-backlash design but the builder thinks it would only take a small design change.