press_now and arm_press hand the arm press to the operator when the
bench actuator reports that the press failed. When the box makes its
200 ms press and its reply is lost, the client raises that failure at
its 3 s timeout or later (with ip set in the config it does not
retry), and by then the controller has taken the press and put the
button out. The fallback put the notice up all the same and started
the watch, which waits for the button to light before it waits for it
to go out. The button does not light again, so "Press it now" stood
through the job and asked for a second press, and a press during the
job pauses it.
Both fallbacks now record the fixture's error and then read the
button. Out: the press was taken, it is recorded as the fixture's, and
no notice goes up. Lit, or unreadable: the notice goes up with its
watch, as before. Nothing presses for the operator, and no judge or
energy path changes.
Proof: forgetest-ci "Unit tests" (`python -B -m unittest discover -s
tests -v` in forgetest), on Ubuntu 24.04 with python 3.12 and on
Windows with python 3.14: test_fixture.py's
test_the_arm_notice_comes_down_when_the_press_is_taken gains the leg
where the box puts the button out and then reports a failure: press_now
returns True with no notice and the press recorded as the fixture's,
and arm_press leaves no notice and the same record. The file's 21
tests OK on Ubuntu, and on Windows with
test_ready_reads_a_short_press_as_an_edge skipped (no os.mkfifo).
test_setup_burns.py (22), test_setup_dark.py (20), test_server.py
(10), test_operator.py (17), test_queue.py (15) and test_mode.py (9)
OK on Ubuntu. Negative controls on scratch copies: the leg
against the runner as it was fails at press_now (False, the notice
standing); with arm_press's fallback alone as it was, the leg fails at
its record ('operator', the notice up). pyflakes reports no undefined
name.
Acceptance: every catalog test's fingerprint moves: runner.py is a
shared judge, in every implementation hash (43 of 43 move). Against
the campaign this series already needs, that adds no run: 850498f moved
all 43 once. tests/ are in none.
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.