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BRINGUP: milestone 2 human-verified - motion is butter smooth

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Operator confirmed smooth, near-silent motion on a full observation run
(slow/fast/diagonal/zigzag jogs to 200 mm/s) under grblHAL-glowforge
with the factory-true analog config. Milestone 2 closed.
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ScottW514
2026-08-02 14:48:05 -04:00
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@@ -141,11 +141,12 @@ hardware I/O — host testing).
## Next work (in rough order)
1. **Backend milestone 2 — motion quality: DONE 2026-08-02** (see status
section above). Remaining human check: listen/watch a jog session for
noise and smoothness vs the pre-tuning state (all electrical/protocol
checks are green; loudness was likely the 150/150 currents + unset
decay mode, both now factory-true).
1. **Backend milestone 2 — motion quality: DONE and human-verified
2026-08-02.** Operator confirmed motion is "butter smooth" (and near
silent) on a full observation run — slow/fast/diagonal/zigzag jogs at
up to 200 mm/s under grblHAL-glowforge with the factory-true analog
config. The pre-tuning loudness was the 150/150 currents + unset
decay mode. Milestone closed.
2. **Laser mapping** (gated on the scope session): spindle → power bytes
(bit 7) + bit 4 laser-enable, M3/M4/$32 semantics, PWM-reset rule per
the contract. **No live fire before the standing scope gates**: LASER_PWM