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Two plywood rectangular cutouts are not aligned

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Laser
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35
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09-14
I am cutting out two plywood rectangles to be glued back to back using the same rectangle drawn in Lightburn but when I fit the plywood together, it does not line up square. What am I doing wrong? Thanks!
C

    • Carey

      09-18
      Did you check if your laser bed is perfectly leveled and square?
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      • Silvano

        09-18
        Some things to check:

Step/mm calibration is correct for both axes
Both diagonals of a big square are 1.414 × side length
Laser beam is perpendicular to platform
No mechanical backlash
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