Omtech 60W CO2 Laser Calibration | X-axis issue

I recently purchased an Omtech 60W CO2 laser with Ruida controller. Despite the actual (or physical) bed size of 600x475 and working area of 600x400, I’ve encountered some issues with the X-axis and Lightburn settings.

Issue 1: X-axis Limitation
The laser on the X-axis seems to be limited to 450mm, even though the controller display indicates it’s at 600mm. I’m unsure why this discrepancy exists and would appreciate guidance on resolving it.

Issue 2: Incorrect Cutting Size in Lightburn
When I attempt to cut a 200mm x 200mm square using Lightburn, the laser cuts it shorter on both sides. I suspect there’s a calibration issue, and I’m seeking advice on correcting the axis and Lightburn settings to achieve accurate cuts.

As I’m relatively new to working with lasers, I would greatly appreciate your expertise and guidance.
I’m still in the early stages of working with lasers, and I’m eager to learn from the community


Both issues are likely due to the same root cause, miscalibrated axes.

Take a backup of your machine settings first in case you have an issue then use Edit->Machine Settings->Calibrate Axis to calibrate your axes.