Why this matters

Measure the design in LightBurn first. If LightBurn dimensions are wrong, solve import units; if LightBurn is right but the physical result is scaled, investigate machine calibration.

How to think about it

Define the result you actually need, then confirm the active machine profile, units and operating mode before changing parameters.

Practical workflow

  1. Define the result you actually need, then confirm the active machine profile, units and operating mode before changing parameters.
  2. Change one meaningful variable at a time and use Preview/Frame or offline analysis before running a real job.
  3. If the issue repeats, keep evidence: Console output, a G-code sample, the exact settings used and material context. Evidence makes troubleshooting reproducible.

If the result is wrong

Measure the design in LightBurn first. If LightBurn dimensions are wrong, solve import units; if LightBurn is right but the physical result is scaled, investigate machine calibration.