Camera Overlay Does Not Match Actual Engraving (OMTech 80W + Ruida + LightBurn 2.1.03

LightBurn Software Questions
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Camera Overlay Does Not Match Actual Engraving (OMTech 80W + Ruida + LightBurn 2.1.03**

Machine: OMTech 80W CO₂ laser with Ruida controller
Software: LightBurn Pro 2.1.03
Issue: My overhead camera overlay does not match where the laser actually engraves. I completed lens calibration and workspace alignment multiple times. I corrected the camera orientation (it was initially upside down), and the overlay is much closer now, but it is still offset. For example, if I place a rectangle in the center of a larger engraved square on the camera overlay, the laser engraves the rectangle several millimeters below where it appears on the screen. Adjusting X Shift and Y Shift improves it but does not make it accurate across the workspace.

In addition, after making adjustments, the Frame function sometimes stops responding, and at times Home and Start also stop responding until I restart LightBurn and/or the machine.

I need the camera overlay to be accurate because I engrave custom plaques and need precise placement. I’m trying to determine whether this is a camera calibration issue, a LightBurn 2.1.03 issue, a Ruida communication issue, or a machine profile If it worked correctly on the previous version of LightBurn and the problem only started after updating to 2.1.03

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I just went through setting up a new camera. From what I have read, it is now a new improved process. I found it quite easy, except as noted in my Thread. Two things are extremely important: [1] Lens Calibration, and [2] Material height.

If you calibrated with 3mm plywood, then slip in a 10mm thick board, you will have issues. You must run a new camera setup process for the thicker material. You can save each calibration for each material height you will be using.

I too do cutting board engravings for a local resin artist. Meaning I ab gouing to encounter the same issues as you.