ThePirateRay/docs/research/lightburn-control-machine-observation-2026-10-24.md

2.5 KiB

LightBurn control-machine observation

  • Date: 2026-10-24
  • Application: LightBurn Pro 2.1.03
  • Hardware state: laser physically disconnected by the operator
  • Scope: passive UI and local-preference inspection only

Confirmed in the running application

The window title identified LightBurn Pro 2.1.03 with the operator-verified Gradients DepthMap project open. The active device was 100 JPT E2 MOPA, the connection status read Disconnected, the port selector read (Auto), and the loaded material library was Mopa-100W-110mm.

The Cuts / Layers panel labels the MOPA controls as Frequency (kHz) and Q-Pulse (ns). This independently establishes the UI display units needed by the offline importer contract; it does not establish the serialized-file unit or authorize conversion without the documented normalization rule.

The visible selected-layer controls showed speed 1800 mm/s, one pass, power 17%, frequency 1000 kHz, and Q-pulse width 10 ns. The project layer list also showed an Image layer at 1800 / 59 and two additional layers at 12 / 59. These values are observations of the open project, not recommended recipes.

Preference cross-check and preserved files

The live preferences still contain four device records. The named JPT profile is JCZFiber over LibUSB, has a 110 x 110 mm work area, enables Q-pulse-width control, and requires framing before start. The profile stores a raw frequency range of 1 to 4000 and has home-on-startup disabled.

The active preferences file and LightBurn's newest native .lbprefs backup were copied into PrivateStash with before/source-after/copy SHA-256 equality checks. Their two sanitized public records are in public-lightburn-control-machine-observation.jsonl. Exact local paths, raw preferences and machine-specific fields remain private.

Collection limits

The automation screenshot channel repeatedly returned window capture timed out; accessibility-only inspection remained available. Geometry-dependent controls therefore could not be safely invoked to capture every Device Settings tab. No substitute Support Data bundle was generated.

No Start or Frame control was used, no USB endpoint or controller was opened, and no machine setting was intentionally changed. The operator's 110 mm lens statement remains operator-confirmed rather than photographically verified. Exterior hardware labels and the complete Device Settings screenshot set remain open evidence items.