ALUMINUM - Engrave (20W) Laser Settings - Fiber 20W

Specifications and context

Evidence status

Bundled baseline — no community vouch or proof-burn photo attached

Source data reviewed

2026-08-09

Laser source

Fiber (MOPA)

Model

Fiber 20W

Power

100%

Speed

733 mm/s

Frequency

25 kHz

Passes

1

Hatch interval

0.025 mm

Pulse width

Not specified

Production guidance

This ALUMINUM - Engrave (20W) metal record pairs 100% power with 733 mm/s on Fiber 20W, using 1 pass, 25 kHz, 0.025 mm hatch spacing, and no recorded pulse-width override. Compare every listed field with the source, lens, focus method, and material finish on your machine before transferring the recipe.

1. 1. Standard engrave on aluminum with a 20W fiber source.
2. 2. Treat this as an unverified baseline, not a production preset. A VERIFIED Parameters Library record requires three independent community vouches; an attached proof-burn image provides additional evidence.
3. 3. Bare metal is unforgiving of focus error: re-zero on the actual work surface rather than the bed, and wipe oils off before marking or the mark will read blotchy.
4. 4. MOPA pulse width is the parameter doing the work here — if the result drifts, adjust pulse width before touching power or speed.
5. 5. This runs at effectively full power, so there is no headroom left to push. If the mark is weak, slow the speed or add a pass rather than raising power.
6. 6. Record the successful result in the Parameters Library so the next production run is repeatable.

The bundled note for this ALUMINUM - Engrave (20W) recipe is: “Standard engrave on aluminum with a 20W fiber source.” The source data was reviewed 2026-08-09; no independent vouch or proof-burn image is attached. Label the scrap test with the adjusted values and keep the accepted result with the production job.