edmond22 wrote:In the imperial unit there is a G70 and a G20, I initially just changed the G20 to G21 but it was still loading up in Mach3 as an imperial unit file so I changed the G70 to G71 otherwise everything is the same.
Someone put the G70 in there by mistake as there was G20/G21 already in the header. G70 and G71 are deprecated commands. See the Mach3 gcode info. Better to only use G20/G21. Anyway use one or the other, not both.
Vectric have a good guide to editing their PPs. It is worth reading. I don't have a link right now, look on their site.