ScottW514 c217e24905 Put the head back at the end of the M5 rapid job
laser.m5-rapid-dark cut 20 mm out and then ran the two rapids the test is
about, one back and one out again. The three net to plus 20 mm, so the
job ended with the head 20 mm from where it started, every run: 1067
counts at 53.333 per mm, which the hand-back jogged out and reported.
That one is dirt, and the position dead band was right to leave it alone
- it is 20 mm, not the step a return rounds to.

A third rapid, back 20 mm with a short dwell, ends the job where it began.
It sits inside the sampling window and after the M5, so it is one more
rapid that must be dark, which is what the test already asks of the other
two: the assertion is wider, not narrower. The operator's clearance step
is unchanged, because the head still needs its 20 mm of +X.

Every job list in the suite that moves in G91 now nets zero on X
(cooling.py, laser.py twice).
2026-09-10 13:46:34 -04:00
2026-09-08 16:21:37 -04:00
2026-09-08 16:21:37 -04:00
2026-09-08 16:21:37 -04:00
2020-04-15 17:09:41 -04:00
2026-09-09 07:01:15 -04:00

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.

S
Description
OpenGlow/ForgeFIRM Firmware for Glowforge
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