This page describes a laser cutting setting published for Noyer at 3 mm, tested on a Universal Laser Systems VLS3.75 fitted with a CO2 75W source (10,600 nm CO2, 75 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 cutting setting that works on Noyer at 3 mm does not transfer to another thickness, nor to another source. A 10,600 nm CO2 rated 75 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 Noyer, then adjust the speed rather than the power. Work with fume extraction and air assist, wear glasses rated for 10,600 nm CO2, and never leave the machine unattended.
Universal Laser Systems builds modular CO2 and fibre platforms where source, lens and table change with the job. Settings are inseparable from the configuration: same machine, different lens, different result.
Walnut is the premium wood of laser engraving: dark, dense, with an elegant grain. Its quirk is counter-intuitive — the darker the wood, the more carefully engraving must be planned to stay legible.
On already dark brown wood, a burnt engraving adds no contrast: it disappears. The right approach is to engrave deeper and wider to create relief and shadow contrast, or conversely very lightly for a satin effect lighter than the wood.
Walnut is dense and consistent: settings are repeatable from board to board, which is comfortable for small-batch production.
Cutting needs more energy than beech. On a diode the reasonable thickness runs out quickly; a CO2 is far more comfortable.
Mind walnut dust, which is irritant and allergenic for some people: extract and vacuum rather than blowing it around.
This is the wood where finishing makes all the difference: hard wax oil brings out the grain and engraving depth dramatically. Filling the engraved recesses with light paint is also a very elegant option on walnut.