Ray + Lightburn: How to repeat engraving by setting the starting point manually

Snapmaker Ray
1

What do I want to do?

  • Insert the workpiece
  • Position the laser head to the desired starting position by specifying coordinates (x,y)
  • First laser pass
  • Move laser head to (0,0)
  • Do something on the workpiece without changing its position
  • Position the laser head to the desired start position by specifying the same coordinates (x,y)
  • second laser pass (this should then be exactly on the first pass)

How can I manually set the start position in Lightburn so that the laser head moves there and then starts from there?

2

While I do not have a ray, it should be fairly easy.

Open the terminal in Lightburn after moving the toolhead where you want to be as 0,0, then use the following command;

G92 X0 Y0

Afterwards, make sure to set Lightburn to absolute coordinate mode. As long as you don’t rehome or use the touchscreen, your home position should remain there and repeatable.