An empty form field never reaches the request, so POST /settings with an
empty value in the body carries no key at all and the daemon answers 400,
"no known setting in request". Only the query-string form gets an empty
value through. Measured on the bench reference:
POST /settings -d "lid_policy=" -> 400, the value unchanged
POST /settings?lid_policy= -> 200, the key cleared
Three places in the suite already knew this and say so in a comment; two
did not.
motion.lid-policy-hold restored with the form body, so on a machine whose
lid_policy has never been set the restore was refused and the test failed
its own check. It now uses the query-string form for the empty value, as
the others do. This is the same test as the commit before: that one
stopped it from writing the word "cancel" where the machine had nothing,
and this one lets it write the nothing.
cloud.mode-switch had the older shape of the same fault: it restored
homing_mode to the literal "none" where the machine had it unset. On the
bench reference the restore branch never ran, because that machine homes
through the cloud, so it has not fired yet; on a machine with homing_mode
unset it would have. It now restores exactly what it found.
The rest of the suite was audited for this and is clean: camera.key-read,
cooling.critical-tier, cooling.tec-drive, cooling.crash-watch-plumbing,
cooling.fire-watch-tiers, cooling.floor-and-warm-up, cloud.verdict-hold,
forgectrl.settings, logs.levels and motion.xy-microsteps all either guard
the empty value or go through the shared Restore helper, which has always
done it correctly. commission.cloud-header-capture uses that helper too.
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.
This project is not affiliated with or endorsed by Glowforge.