@rzi said in Any progress with variables / parameters?: Sounds super! Not that far away then. Are you planning to do a similar implementation as in: http://linuxcnc.org/docs/html/gcode/overview.html#_parameters Or are you heading in some other direction? Best regards Rickard I looked at the linuxcnc implementation, and it's horrible. There is another thread on this topic in which I linked to the draft specification of what I am implementing.