Mastercam Post Processor Editing Review

A post processor is a translator. It takes the generic NCI (Numerical Control Interface) file from Mastercam and converts it into a specific dialect of G-code (Fanuc, Haas, Siemens, Heidenhain, etc.). Out of the box, Mastercam includes hundreds of generic posts, but generic rarely means perfect.

ptlchg$ #Tool change pbld, n$, "T", t$, "M06", e$ pbld, n$, "G43", "H", t$, e$ # <--- ADD THIS LINE pbld, n$, "S", spindlspd, "M03", e$ ⚠️ Ensure t$ is the correct variable for your H offset (sometimes it is tloffno$ ). Edit #4: Changing Arc Format (R vs IJK) The Problem: Old Fanuc controls choke on IJK arcs (incremental center points). You want R values. Or, your newer Siemens wants IJK with sign. mastercam post processor editing

Locate the scoolant string definitions.