Laser cutter advice

Hi, looking for advice on the laser cutter.

I want to laser cut on 1/4" birch a larger version of this logo.

Before I attempt the larger version, I laser cut smaller drafts (11x11cm) on 1/8" and 1/4" birch and it took about 4-5 passes on the 1/4" causing some of the the narrow lines to be lost. Just want to ask if there are any adjustments I can make to reduce the number of passes or if it’s typical to expect 4-5 passes to make a cut?

Thanks!
Mel

1/4" birch should cut with 2 passes at most. Often 1 pass is enough. Something must be wrong with your settings, focus, or the laser optics badly need cleaning or alignment.

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Thanks for replying @lukecyca !

Do you see any aspect of my settings I can adjust?
Max power - 55
min power - 45
speed - 15/20
1st pass focus - 4mm

2nd pass focus - 8mm

I would set max and min power to 60, speed to 12, and focus to 6mm for both passes.

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I tried those settings yesterday (looks like power is capped at 55%) and four passes later, it still didn’t cut through.

Front


Back

what speed did you use?

Also that might salvageable, if you take an orbital sander to the back and remove off a thin layer of material.

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I’ll give that a try! I used 12, and then 10 for the last pass.