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5 hours on Longer Ray5 10W - laser power severely diminished

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Laser
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2023-08-14

Brand new to CNC Laser fun! I have a Longer Ray 5 10W where I established the test line speed vs power in the Lightburn Material test. I’ve noticed my project recently not being fully cutout from the 3mm basswood stock. the material test on the right is from today. none of them can be “punched out” unlike those on the left. I have removed the laser and cleaned the lens, I have tested with air assist on or off and had the air pump running accordingly. (Longer) Air assist pump) I have uninstalled the laser and re discovered as well as updated LightBurn to the latest version. Anything I am overlooking?
C

    • Henry

      2023-08-15
      The text looks similarly brown and reasonably well focused, so the laser diode is probably producing about the same amount of power.

Different material, even from the same box, will behave differently. Plywood, in particular, can have vastly different wood / glue / junk inside.

The speed may simply be too high for reliable cutting, with the first sample coming out fine because everything else canceled out.

Run a similar test between speeds of 5 mm/min and 100 mm/min with power from 10% to 100% to see if that’s the case.
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