Ok, the title gives a hint of what I am trying to accomplish.
First off, specifics about my machine.
First gen 1000mm xcarve with the arduino/gshield with GRBL v1.0c
Quiet cut spindle on separate 48v power supply triggered by 5v signal from pin 11 on the gshield which operates a optical relay then then that triggers a speed controller powering the spindle with a rheostat or pot switch for speed control.
I have the laser set up on a Designs by Phil quick detach mount with a power wire in place.
All that is left is the trigger wire.
Jtech instructions are showing to use pin 11 but as stated earlier that is in use.
I cant seem to find anything that addresses my particular situation.
I have the spindle connection on the 24v power supply available, the one that is controlled by the on/off/logic switch on the power supply itself. Could this be utilized? or is building a switch box to go from laser to spindle and back again in my future?