In cloud mode forgectrl's start at the end of a takeover starts a cloud
client, and what that client is comes only from gfcloud's one-start
markers, which the client that starts reads and takes down. The takeover
started it bare: the online client, with the service's connect-time
hunt. Seen on the bench with exthost.armed-freeze, which runs its print
under the offline service and puts the setup record back under a
takeover: the machine came back online in cloud mode, the hunt homed the
head at 14:21:01, the run's result was written at 14:21:02, and the
service sent a head move at 14:21:08, after the run had ended, where the
next test's switch to GRBL mode would have cut it off. It also broke the
harness's own rule that every cloud client start it makes comes up
without the hunt.
The takeover now reads, on entry, whether the running cloud client is
the offline service: the client itself holds the listening socket at
/run/gfcloud-offline.sock (hw.listens_on reads /proc/net/unix and the
process's own descriptors, so a socket file another process left behind
does not count). forgectrl's start is made under the no-hunt marker in
cloud mode, and under the offline marker as well when the offline
service was found. After the start the client that came up must listen
on the offline socket within 60 s; a miss is recorded on the run's
baseline capture and the post pass turns it into a leftover ("cloud
client at the takeover end", not restored: a cloud test starts the
client it needs), which fails the run. A marker no client read (the
gate, standby, a fault) is taken down, so a later start never comes up
under it. The judge never breaks the exit path.
Proof: forgetest's unit tests pass on the host (481 OK). The new
tests/test_takeover_client.py drives a real enter and exit against the
fake forgectrl, a fake /proc, and an init script that plays gfcloud's
start: the offline service comes back offline, an online client after
it fails the run, a start that never happened takes the markers down,
an online client comes back without the hunt, a stale socket file is not
the offline service, GRBL mode starts under no marker. Negative
controls: without the markers four of them fail, without the judge
three. Bench drill on the bench reference with this package from /tmp:
GRBL mode, the offline service started as enter_offline starts it (pid
4834), a takeover; the client forgectrl brought back (pid 4898) read
both markers, logged "OFFLINE service", listened on the socket, and in
the 10 s after had no web session, no hunt, and no motion. The bench was
then handed back to GRBL mode as found.
Acceptance: runner.py, baseline.py and hw.py are in no test's
fingerprint, so no result moves; the catalog test that exercises the
change is exthost.armed-freeze, whose takeover now fails the run unless
the offline service comes back.
OpenGlow / ForgeFIRM firmware for Glowforge
BETA
ForgeFIRM is in beta. Every release below 0.1.0 is a beta release. Expect problems, and expect frequent updates. Upgrade whenever a newer release is available, and report what you find on the community forum.
Open firmware for Glowforge brand CNC lasers. ForgeFIRM replaces the cloud-dependent factory software on the stock control board, with no hardware modification, and gives the machine a local controller, a local web control panel, and a standard Grbl interface. The factory cloud experience stays available as an option.
This repository is the base of the build and of the release: the
meta-forgefirm Yocto layer, the kas configuration, the image recipes, the
install and release scripts, the acceptance tool (forgetest/), the bench
tools (scripts/bench/), the bench actuator firmware (fixture/), and the
release artifacts (releases/).
Start here
https://docs.forgefirm.org/ is the documentation, and the source of truth for every fact about the machine and the firmware.
| Read this first | Safety |
| Put it on a machine | Installation |
| Use it | Usage, LightBurn |
| How the machine works | Technical |
| How ForgeFIRM works with it | ForgeFIRM internals |
| Build, test, release | Developers |
| Downloads | Releases |
| Questions | Community forum |
Build
kas build kas/forgefirm-glowforge.yml
Build covers the host setup, the two images, the source variant and the debug kernel. Release flow covers the pins, the push order and the signing pipeline.
Test
cd forgetest && python3 -m unittest discover -s tests -v
The acceptance catalog that gates a release, and the bench tools, are on Acceptance and The bench.
Contributing
AGENTS.md carries the rules for this repository and for the project: safety ordering, proof before done, the push order, and the writing rules. They apply to human contributors too, and Contribute is the same set on the site.
What this costs
Nothing. ForgeFIRM is free in both senses, under MIT and GPL licenses. There is no paid tier, no license key, no subscription and no Pro edition. If someone offers to sell it to you, the licenses allow it, but what you take home is their build rather than this one: get it from the source.
Safety
These machines contain a CO2 laser: it burns, blinds, and starts fires. Never defeat the lid switches or the interlock. Never leave a running job unattended. Keep a fire extinguisher within reach. Read Safety before you cut your first job, and Regulatory and legal before you install.
This is experimental software. Use of it could seriously maim or kill you or others, and it may void your warranty. Use it at your own risk.
Glowforge is a trademark of Glowforge, Inc. This project is not affiliated with, authorized by, or endorsed by Glowforge, Inc.