I am running a spindle router on my home built CNC powered by a blackbox. In VCarve, when you select a tool for a job it has as one of its parameters the optimum spindle speed for the selected tool. I also need to turn on the coolant and pause the startup of the spindle by about 8 seconds. There may be other GRBL commands that I would like to set also. Does anyone know how to modify the GRBL post processor in Vcarve so that these (and perhaps other commands) are applied when the toolpath is saved before the tool starts the run?