[mattpatt]

Hi Guys,

Got some strange G code output going on, and wondered if anyone can throw light on it.

I'm milling around a profile using 3D depth type. The simulation works fine, but the problem occurs at the G code generation.

If I select to rough only then the code is fine. G90 absolute coordinates and just as I planned.

If I rough and finish in the same op then it's also fine. Same as above (G90).

But, if I select to just finish then the G code goes very strange. The toolpath goes haywire. Parts of the code are in G90 absolute and other parts are in G91 incremental. This would be ok, but it's calling a G91 where it should be a G90. Not always in the right place though.

It's obviously something to do with my .mac & .gpp files as if I use the supplied fanuc.mac and fanuc.gpp files the output is different again. In some cases putting a G90 and G91 on the same line.

Confused!

I fiddled the code (using Cimco Edit) and all's well on the machine, but I can't be doing that all the time.

I'm guessing that I need to print out the gpp tool help manual and take it to bed for bed time reading.