This page describes a laser engraving setting published for Laiton at 2 mm, tested on a ComMarker B6 Fiber fitted with a Fibre 60W MOPA source (1064 nm fibre, 60 W). It states the exact machine, source, material, thickness and operation of the test; power, speed and number of passes are shown with a Premium pass.
Why those four facts matter: a engraving setting that works on Laiton at 2 mm does not transfer to another thickness, nor to another source. A 1064 nm fibre rated 60 W does not deposit the same energy as a stronger module, and the speed has to be adjusted accordingly. Copying a number without checking those four points is the first cause of a ruined part.
Published by LaserSettings (estimation). No other workshop has confirmed it yet: treat it as a starting point, and confirm it from your account if you reproduce it.
No photo comes with this setting yet. If you reproduce it, publish yours from your account: a picture of the result is worth more than a line of numbers.
Recommended routine before running the part: clean the lens, redo the focus, engrave a small test grid on an offcut of the same Laiton, then adjust the speed rather than the power. Work with fume extraction and air assist, wear glasses rated for 1064 nm fibre, and never leave the machine unattended.
ComMarker focuses on compact fibre and MOPA markers designed for steel, brass and anodised aluminium. On a MOPA, pulse duration also unlocks colour marking on stainless steel: a colour setting is very sensitive and transfers poorly between machines.
Brass marks with a fibre laser in very fine detail, ideal for plates, tags and watchmaking. It is also one of the most reflective metals: safety becomes very concrete here.
Only a 1064 nm fibre source marks bare brass. A diode or CO2 does nothing to it, except with a marking spray.
Brass conducts heat very well: energy dissipates fast. You therefore need more passes than on steel for the same depth, and marking too slowly widens the line instead of deepening it.
The result ranges from light grey to black depending on pulse frequency. On lacquered brass (very common on shop-bought plates) the laser first removes the lacquer: start with a light cleaning pass, then mark.
Polished brass reflects the beam with very little loss: a reflection can reach your eyes or the machine's optics. Certified 1064 nm goggles, lid closed, and never tilt the part towards you.
The fumes contain copper and zinc particles and need serious extraction. Zinc in particular must not be breathed.
After marking, a soft cloth and possibly a brass-specific product revive the shine around the mark. A clear spray lacquer stops the plate tarnishing over time.