From 6063b9368381880faf6e3234960ba06d504af48e Mon Sep 17 00:00:00 2001 From: ScottW514 Date: Tue, 11 Aug 2026 16:58:40 -0400 Subject: [PATCH] BRINGUP: first GRBL-mode burn landed 2026-08-11 --- docs/BRINGUP.md | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/docs/BRINGUP.md b/docs/BRINGUP.md index 6215d70..a2dfe89 100644 --- a/docs/BRINGUP.md +++ b/docs/BRINGUP.md @@ -646,7 +646,9 @@ accordingly ("Automatic — AP country, else World"). the contract. **No live fire before the standing scope gates.** Gate status: - **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 `grblHAL-glowforge/src/glowforge_laser.c`; per-segment spindle 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 sender leaves a pending arm wait until the button timeout clears it (latch relocks then). - - **Remaining for first light** (operator present, coolant - flowing, never autonomous): the chain-armed procedure itself; - verify the hardware button latch persists across kernel-run - gaps mid-job (if OK_2_FIRE drops between motion bursts, the - fix is a stream keepalive across armed gaps); interlock-trip - recovery; warm-baseline flow-check behavior under real laser - heating; then the planned low-temperature gates and TEC - handling below. + - **Remaining commissioning items** (first light itself landed + 2026-08-11; operator present, coolant flowing, never + autonomous): verify the hardware button latch persists across + kernel-run gaps mid-job (if OK_2_FIRE drops between motion + bursts, the fix is a stream keepalive across armed gaps); + interlock-trip recovery; warm-baseline flow-check behavior + under real laser heating; then the planned low-temperature + gates and TEC handling below. - **2026-08-11: the failed first-light attempts' no-motion root cause — fast 40 V motor-rail bounces — found and mitigated.** An off→on bounce of the 40 V rail within ~tens to hundreds of