ScottW514
dc7170d0d1
The test counted "heater rise" in the last 300 lines of the forgectrl log before the job, then waited for the count to grow. A tail of fixed length cannot show that: the new verdict line comes in at the bottom as an old one leaves at the top, the count does not move, and a check that verified reads as one that never judged. Seen on the bench reference in campaign c-20260919210959-8780: the engine logged "coolant flow verified (heater rise 11.5 C, dT 9.5 C; laser 1.6 off 13.1)" at 21:37:46, 70 s into the job and inside the wait, and the test failed at 21:39:21 with "the engine published no flow verdict within 120 s". The 21:17:27 verdict of an earlier test sat near the top of the 300-line tail when the test began. Replayed against that log, the old method reads 4 before the job and 4 with the new verdict in the tail; the search from the byte offset finds the 21:37:46 line. The test now takes the log's byte offset before the job (_log_offset, as the fail-tier and liveness tests do) and searches what the file gained since with the verdict expression, stopping only on a line that matches. _log_since reads a file that is now shorter than the offset from its start: a rotation under the test leaves only newer lines. The /logs/tail helper and its line count are gone with their one user. Proven: tests/test_cooling_suite.py FlowVerdictLogTests - the text after the offset alone, the real verdict line through the expression, an old verdict before the offset not taken for the new one, a rotated log read whole, a missing log read as nothing; the cooling host tests pass under Linux, 24 tests. No component source changed, so no pin moves.
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.