is there a way to make b axis number negitive if it smaller than last position?

[nor750rr]

Hi I am working with a v9.1 post and  the b axis on a giddings and lewis 8000 control needs a negitive  number to go backwads.

so if i am at 180 and want to go to 179 without the minus sign it will go 359 degrees to get to 179.

[Colin Gilchrist]

Have you tried asking your Reseller for help?

[nor750rr]

i dont  think they support v9 any more, we got x when we bought v9.1 but the machines are mostly from the early 80s so the posts were a bit of a hold back from upgrading.

there is only a couple of those machines left so maybe with any luck we can look at an upgrade soon.

i think all i need is a line in the post to say -------if b is less than previous b then use minus sign if not not? this doesnt have to be a seemless solution i can patch in the rotary code to a main program.