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BRINGUP: first GRBL-mode burn landed 2026-08-11

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ScottW514
2026-08-11 16:58:40 -04:00
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@@ -646,7 +646,9 @@ accordingly ("Automatic — AP country, else World").
the contract. **No live fire before the standing scope gates.** Gate the contract. **No live fire before the standing scope gates.** Gate
status: status:
- **GRBL-MODE LASER SOFTWARE: IMPLEMENTED 2026-08-09, bench-verified - **GRBL-MODE LASER SOFTWARE: IMPLEMENTED 2026-08-09, bench-verified
without fire. FIRST LIGHT PENDING (operator-run, chain armed).** without fire. FIRST LIGHT LANDED 2026-08-11 — first GRBL-mode burn
completed (operator-run LightBurn job, chain armed, motor-rail
settle in place).**
- Architecture: the real spindle lives in - Architecture: the real spindle lives in
`grblHAL-glowforge/src/glowforge_laser.c`; per-segment spindle `grblHAL-glowforge/src/glowforge_laser.c`; per-segment spindle
updates (the core's laser-mode path, running on the stepper updates (the core's laser-mode path, running on the stepper
@@ -714,14 +716,14 @@ accordingly ("Automatic — AP country, else World").
run fans with every M8. Note for senders: a disconnecting run fans with every M8. Note for senders: a disconnecting
sender leaves a pending arm wait until the button timeout sender leaves a pending arm wait until the button timeout
clears it (latch relocks then). clears it (latch relocks then).
- **Remaining for first light** (operator present, coolant - **Remaining commissioning items** (first light itself landed
flowing, never autonomous): the chain-armed procedure itself; 2026-08-11; operator present, coolant flowing, never
verify the hardware button latch persists across kernel-run autonomous): verify the hardware button latch persists across
gaps mid-job (if OK_2_FIRE drops between motion bursts, the kernel-run gaps mid-job (if OK_2_FIRE drops between motion
fix is a stream keepalive across armed gaps); interlock-trip bursts, the fix is a stream keepalive across armed gaps);
recovery; warm-baseline flow-check behavior under real laser interlock-trip recovery; warm-baseline flow-check behavior
heating; then the planned low-temperature gates and TEC under real laser heating; then the planned low-temperature
handling below. gates and TEC handling below.
- **2026-08-11: the failed first-light attempts' no-motion root - **2026-08-11: the failed first-light attempts' no-motion root
cause — fast 40 V motor-rail bounces — found and mitigated.** cause — fast 40 V motor-rail bounces — found and mitigated.**
An off→on bounce of the 40 V rail within ~tens to hundreds of An off→on bounce of the 40 V rail within ~tens to hundreds of