Settings for a relief cut using SVG on 1mm basswood?

LightBurn Software Questions
1

I’m trying to cut a mix of holes and thin engraved relief lines on 1mm basswood.

I have one SVG layer for the holes and another for the relief cuts.

For the holes, I’m using 10mm/sec speed with 90% power and air assist, and it cuts fantastically.

For the relief lines, I’m using 10mm/sec speed with 1% power and air assist, but it still cuts straight through. Complete overkill. If I set it to 100mm/sec speed, then that effectively reduces power enough to engrave the lines, but the lines have a lot of slur, wobble and inaccuracy, making the result look terrible.

How do I reduce the power of the laser without increasing speed and ruining the accuracy of the cut?

2

You may find 100 mm/s = 6000 mm/min is overly aggressive for a tabletop diode laser, particularly if you haven’t yet verified all the mechanical tuneup items:

There’s a considerable range between 600 mm/min and 6000 mm/min, as well as 1% and 90% power. When the extremes aren’t working, the Material Test results may suggest a more suitable combination for each purpose.

3

Turns out, if I set the power to 0.05, that fixed it. I didn’t realize you could set the laser power that low.

4

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