Sculpfun S30 Pro 10watt laser - trying to mark aluminum guitar pickguard - anyone know the correct power/speed settings to make this stuff stick- I tried many at high power and 2500 -3000 mm/m but it all washes off - should speed be at a very low setting.
Diode lasers cannot mark aluminum. It is very thermally conductive and dissipates the heat too fast. You cannot fuse anything, like Titanium Dioxide, to it.
The best you can hope for is to burn off a paint or anodized coating to show the aluminum underneath the coating.
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