laser.power-floor read $$ off the controller and checked $35 is the floor, that it lands at PWMSAR 12 or above, and that $31 is 0. The host proves all of it now: laser_stream_test rule 18 reads $$ on a fresh controller and after the arm (d7379d9), and laser_arm_test.c case J holds a set floor key (honored, an out-of-range key falling back to the default, 0 honored). forgectrl keeps no default for laser_floor_density: an absent key is the controller's own floor. - Its own lines go, and the names only it or the removed tests read: _floor, _grbl_settings, FLOOR_DEFAULT with the comment above it, PWM_PERIOD, PWMSAR_FLOOR_MIN, DISARMED_MSG, and the extra blank lines the earlier own-lines removals left. - The module docstring no longer carves laser.power-floor out as the one test that does not emit; it says the live tests here emit, since laser.recorder-dark never fires. - HV_DARK_MAX stays: it is the emission witness's limit. Proof: the fingerprint parts of laser.py before and after: the shared text changed, and every remaining test's own text is unchanged. The coverage lint reports 0 uncovered paths and 0 host-tested row problems over 108 tests (its one failure is setup.check-lens's src/lensfind.* entry, which the forgectrl pin bump clears); the gate self-check refuses an empty artifact cleanly; pyflakes adds no finding; the forgetest host suite passes under Linux (539 tests). Acceptance: laser.py's shared text moves the fingerprints of laser.emission-witness, laser.armed-kill, laser.pause-resume-lid-cancel and laser.recorder-dark. Against the image on the bench that adds no run:6a434bbalready changed laser.py's shared text, so all four re-run in the next campaign either way.
OpenGlow / ForgeFIRM firmware for Glowforge
BETA
ForgeFIRM is in beta. Every release below 0.1.0 is a beta release. It's stable, but you may still hit the occasional bug, 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.