Is it legal to mix inch and metric ball screws?

[dmgdesigns]

[buscht]

Yes, it doesn't matter as long as the ball screw and ball nut match. Each axis can be different. I use TurboCNC and it allows you to set up each axis independantly.
You may get a different top speed out of each ball screw however and your accel and decel may be different.

[HuFlungDung]

One precaution is to check that the controller software can still do circular interpolation with different pitch ballscrews.

[dmgdesigns]

Thanks for the info.

Hu
This may be impossible to answer but of the most popular controller software I see on this site which will not work with mixed ball screws?

[Al_The_Man]

Just about all of the systems I have used that use encoder feedback simply accept the number of counts equal to the unit of the system you are using, i.e. counts/inch. So it is usually immaterial what the ballscrew lead is.
Al