STAINLESS STEEL 304 - Black Anneal Laser Settings - JPT 30W

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

JPT 30W

Power

40%

Speed

800 mm/s

Frequency

35 kHz

Passes

2

Hatch interval

0.025 mm

Pulse width

200 ns

Production guidance

This STAINLESS STEEL 304 - Black Anneal metal record pairs 40% power with 800 mm/s on JPT 30W, using 2 passes, 35 kHz, 0.025 mm hatch spacing, and 200 ns pulse width. Compare every listed field with the source, lens, focus method, and material finish on your machine before transferring the recipe.

1. 1. High-contrast black anneal mark. Published by JPT Opto-Electronics.
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. Run all 2 passes without re-homing between them — re-registering mid-job is the usual cause of a doubled or ghosted edge.
6. 6. Record the successful result in the Parameters Library so the next production run is repeatable.

The bundled note for this STAINLESS STEEL 304 - Black Anneal recipe is: “High-contrast black anneal mark. Published by JPT Opto-Electronics.” 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.