The gf_hostname override is gone (the forgectrl UI no longer offers
it): the hostname is a pure derivation of the serial - base 23 over
the factory consonant alphabet - so a gf_serial override re-derives
MACHINE.HOSTNAME and the fuse derivation stands otherwise. BRINGUP
records the panel rework (units, fuse identity, always-on position)
as offline-verified; board deploy and pin bumps held during the
firmware-upgrade bench testing.
Basic/Plus share the passive closed-loop cooling and the 60-75 F
window per Glowforge's tech specs and owners-forum consensus; the
Pro's solid-state TEC buys 60-81 F. Spec-level only - tec_present
stays a user setting regardless, since tec_on has no readback.
Low side: factory floors (CM* window minimums ~1-4 C, the ~16 C
'warming up' operating floor) and the planned cool_temp_min /
cool_temp_start keys with a heater-driven warm-up phase. TEC:
presence is undetectable (tec_on is write-only, Pro-only hardware on
a common board) so tec_present becomes a user setting, with
hysteresis control toward the factory ~18 C setpoints when enabled.
Slot-agnostic boot proven on the bench: the same release ext4 boots
from SD and from eMMC p4 steered by the saved env alone. fwup
cross-version compatibility proven; slot-sized rootfs, size gate,
ext4 artifact and mkfw.sh in place. Found for Phase 1: the image
ships no /etc/fw_env.config.
The release image now targets the 200 MiB factory eMMC slot: content
plus 40 MiB working space, hard build failure past the slot size. The
raw ext4 is deployed alongside the wic; scripts/mkfw.sh packs it into
a signed .fw with factory-pattern upgrade.a/upgrade.b tasks. fwup
1.16.0 recipe (applies ForgeFIRM and Glowforge-signed archives on
device) is installed in both images. Dev images stay SD-sized with a
256 MiB working margin and no ceiling.
Verified on the 20260808153331 build: release ext4 180.8 MiB; signed
.fw applies byte-exact with fwup 1.16.0 and with the factory's 0.14.2
(raw-format pubkey), and 0.14.2 -V verifies the signature.
flow_confirm_drill.py walks the driver's suspicion/confirmation state
machine through every verdict with real pump-off transients in one M8
session; flow_escalate_drill.py exercises the starved-re-check
escalation against a short GFCOOL_CONFIRM_MAX_S. BRINGUP records the
triage resolution (the 2026-08-03 faults were a real transient
stagnation, probable pump airlock - the check was right), the slug/
circulation measurements, and the new check semantics.
forgectrl ad0b441: OpenGlow branding, operational /status dashboard.
grblHAL-glowforge c472a13: position anchor at homing for the status
readers. Runbook updated.
Non-empty gf_serial / gf_password / gf_hostname in /data/forgefirm.conf
(set from the forgectrl GF Cloud tab) are applied with set_cfg before
Machine() is built, so they beat the OCOTP fuse identity - Machine sets
its fuse values with keep_value. The --timeout default comes from
GFHOME_TIMEOUT_S when the controller provides it, so one GUI setting
governs the whole session. Docs: control-panel runbook notes.
gitsm-pinned build of the controller with a sysvinit script (defaults 92, after forgectrl), installed in both images. Reboot-verified on the bench: controller and forgectrl come up unattended and Grbl answers on TCP:23.
The head lis2hh12 (i2c-3 0x1e, direct-I2C at ~530 Hz - st_accel sysfs one-shots are ~6 Hz and the kernel has no IIO triggers) sees rail contact as a 20-40x jolt over the creep baseline within ~4 ms. bump_seek.py: 3/3 detected hits, zero false positives over ~180 mm of creep, jog-cancel stop and back-off. BRINGUP carries the full record and the driver integration design.
Sources live at github.com/ScottW514/forgectrl (history extracted, layout src/ + init/); the recipe pins SRCREV and installs the init script from the repo. Adds the build-forgectrl.sh bench cross-compile script.
NEON kernel for the YUV420 superpixel convert (vld2q deinterleave, rounding-halving greens, mlal/rshrn luma, pairwise-add chroma block sums), bit-identical to the scalar path and proven so on a live frame via the FORGECTRL_NEON_CHECK one-shot memcmp. Convert 75 to 18 ms; the stream now runs at the OV5648 frame rate. Motion coexistence re-proven at 15 fps (clamped 0).
Demosaic the superpixels straight to planar YUV420 and encode on the CODA960 (mainline coda V4L2 mem2mem, node found by personality); libjpeg stays as the automatic fallback and the snapshot path. All camera paths now demosaic from a cached bounce copy of the frame: the V4L2 MMAP capture buffers are uncached, and reading them in-place costs ~340 ms/frame vs 43 ms memcpy + 75 ms cached convert. Per-frame stats logged every 100 frames; /cam/status reports the encoder.
A stream request for the other camera kicks current stream clients via a generation counter (their streams end cleanly; viewers freeze on the last frame) and switches. The index page retry consults /cam/status first so a preempted view does not steal the camera back.
Snapshots of the non-streaming camera no longer fail 409: the worker borrows the mux for one frame (stream viewers see a short freeze). Stream switches wait up to 3 s for the previous pin to drain. Arbitration compares the engine home camera, not the transiently borrowed pipeline camera. Index page: single toggled stream with retry plus a head-peek button.
Adds the design matrix and its supporting tools, and records in BRINGUP
what the 60-run matrix overturned: sub-40-percent duty mimics flow
(three of five dead-pump trials looked healthier than a working pump),
the operating point and threshold now rest on 25 pooled observations,
periodic re-checks are thermally free with the fans running, and the
settle gate closes a bench-proven miss. Also records what is NOT yet
validated - warm-loop baselines and behaviour under laser heating - as
first-light commissioning items.
Records why the temperature formula changed (and that everything
derived from the old one had to be re-derived), the flow
characterization data at both heater duties, the false negative that
killed the dT-threshold design, and the downstream-rise check that
replaced it. Adds flow_characterize.py to the bench kit.
ScottW514