Picengravertoo wrote:Yes, you correct about the keyboard keys and axis directions. GRBL 9J will not execute the S commands in real time when raster laser engraving using S commands on every line of gcode. It will work fine if vector engraving/cutting though.
Yes, the Z axis homes first, then the X&Y. You could use a momentary switch on the Z axis limit switch pin on the UNO. Start homing, then push the switch, the X&Y will then home.
The $H button does the homing with grbl. No gcode required.
Picengravertoo wrote:On the main page of our forum here, there is the J-Tech LaserMode grbl 9g hex download. It executes the S commands in real time without any dwelling. However, it does not support Arc or G00 rapid commands. It was branched for raster engraving photos with a laser diode.
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