Get position problem

[Gizzmo (Richard Brown)]

Hi I am new to lightburn And laser cutting, my problem is my get position will not reset to 0 and when I try to engrave all I get is a G2 alarm. please can someone help me.
many thanks
Ricky

[paulcw (Paul WIlliams)]

Hi have the same problem on one pc I use with homing, it will not set position to 0.0.0 x y z but will on another PC,
I use after homing the g code command set in a macro for ease, of setting zero for homing G92 X0Y0Z0 it will set current laser position to zero, but will probably mess with the limits of travel as the machine will think that is the new home position I think.

[Rick (Technical Evangelist)]

This is worth review:

Configuring a 3018 CNC (or other CNC-based laser) for use with LightBurn

The summary: Turn on Laser Mode to get rid of the travel lines You’re trying to move too fast, which is why you don’t get enough power You need to zero the machine 3018’s are pre-configured for use as CNC machines, not lasers, so their settings and speeds will likely need to be changed to give you acceptable results with LightBurn. To see the existing settings, you can type $$ into the console in LightBurn and press enter, or go to Edit > Machine Settings. Both are showing the same values, b…

[LightBurn (Oz)]

You’re likely not setting the $10 setting in the firmware to 0, telling the machine to report its position relative to the working origin you set, instead of the absolute machine position. This is covered in the link Rick included above, as well as the documentation for GRBL setups:
https://lightburnsoftware.github.io/NewDocs/CommonGrblSetups.html