[HuFlungDung]

Smitty, what format do the arcs have to be written in for Turbocnc?

Details we'd need to know:
Is your main program in G90 absolute mode? If so, then are the arc centers supposed to be in absolute coordinates as well, or incremental (check your documentation).

What if your main program is in G91 Incremental mode? Presumably all coordinates would be incremental under these circumstances.

Does Turbocnc accept workpiece diameter values for X movements, or radius only?

Because of all these different parameters, it would only confuse you for someone to send you a file that is not written in a method compatible with your controller software requirements.

Doesn't anyone else out there use Turbocnc for lathe, or what? Step up to the plate here, you're up

[wjbzone]

Smitty,
I don't know if you will be able to see this picture good enough to tell what I mean.

This is a sample finish cut on a OD using a 0.031 tool radius. If you can read this maybe we can go from here.

If not I can email it.

Bill

[wjbzone]

That came out better than I thought.

I assumed you are using diameter programming. (X values are diameter not radius)

Turbocnc does not use cutter compensation (g41/
G42) so I positioned the tangent point of the cutting tool on the tangent point of the arc to be cut, for the start and end of each radius.

Bill.

[HuFlungDung]

Nice job there, Wjb! That was a lot of work.

You need to check out that second G2, there is something amiss at the end of that line.

[wjbzone]

Oops,
that Z should have been a K :

G2X1.0Z-4.956I.9K-4.925

Thanks HFD