ScottW514
800d6890a4
The freeze is the rule that keeps a package off the core while a job can fire, and it had a host test against a stand-in forgectrl and one drill by hand. This is its test on the machine, against the real engine. The reference package runs, its heartbeat advancing twice a second. cloud.dark-print's own job and body (a 30 s square at S0, the fixture's press, the latch locked at the button, unlocked for the run, locked after) open a real armed window over it. A sampler reads five times a second: the engine's armed flag (GET /cool/status), the group's frozen state as the kernel reports it (cgroup.events), the heartbeat, the service's pid, and the latch. The test asks for a window of 10 s or more; frozen in every sample from 2 s in to the close, with the heartbeat still; the first frozen sample no later than the first unlocked-latch sample, so the freeze is in place before the run; thawed, with the heartbeat moving again, 3 s after the close; and one process throughout. exthost.service's put-back and its as-found checks became _put_back() and _as_found(), shared by both tests. exthost's top-level imports pulled the setup suite (and now the cloud suite) in ahead of it and reordered the catalog, so exthost is imported last: image, kernel, forgectrl, setup, logs, motion, cooling, laser, camera, update, cloud, exthost; 106 tests. Proven. The unit suite: 451 tests, 0 undefined names. On the bench reference, image 20260920211625 with the cross-built forgectrl and host from /tmp, the coolant taken from 27.2 to 25.4 C with an M8 session first (the cloud client starts no print above 27): exthost.armed-freeze PASS, the window open 37.5 s, the group frozen 0.42 s after it opened and 4.97 s before the latch unlocked for the run, frozen in all 172 samples from 2 s in to the close with the heartbeat still, thawed 0.62 s after the close. With the host suspended (SIGSTOP) across the window, so that nobody freezes anything, it FAILS: not frozen in 177 of 177 samples. exthost.service PASS again after the refactor (a killed host's service gone in 0.05 s, the host back and the service running after 5.6 s). The bench was left as found. Acceptance. exthost.armed-freeze is new: kind operator (the fixture presses), takeover; it covers forgeext's src/super.*, src/run.*, src/machine.*, src/cgroup.*, and forgectrl's src/cool.*, and requires exthost.service and cloud.dark-print.
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.