ScottW514
2f2a4160af
The GRBL driver's stream engine and its motion envelope change (grblHAL-glowforge: the shipper writes outside the lock, a clamp inside an armed window faults, the X/Y soft limits follow the home, the machine's settings are pinned, the homing keys are clamped). This commit carries the host rules and the catalog tests that hold them; the driver commit follows, because its CI fetches these harnesses unpinned. scripts/bench/laser_stream_test.py: - Rule 28: a 300 ms producer stall while armed faults the stream with ALARM:17, the kernel sees no step burst (at most the planned steps per 100 ticks), the stream ends dark, the latch sideband ends on the lock. The same stall unarmed is a warning: the move completes with every step, the clamp visible as the burst the kernel counts. - Rule 29: a 300 ms stall of the sink's write leaves the producer on pace: no clamp, every step, lit through, dark at the end. - The stand-in engine takes GFSINK_STALL_MS and GFSINK_WRITE_STALL_MS, null-sink only. scripts/bench/z_envelope_test.py: - Rule 10: homed (a gfcloud home), a program move past X max, Y max or the near edge alarms with ALARM:2 before any motion, a jog past the bed is refused with error 15, a move inside the bed runs, and a $20 write keeps the limits. The core repeats the last error for the line after a refused jog until an empty line clears it, so the rule sends one. forgetest/forgetest/suite/motion.py: - motion.soft-limits (kind auto, no emission): homes through the cloud suite's gfhome homing when the machine is not homed, then the three refusals (ALARM:2, the kernel counters still), the refused jog, the inside move, and the return to the corner read at rest. - motion.deadman phase 2b: a 100 ms SIGSTOP mid-move, inside the kernel's queue: no underrun, the controller's log warns of the clamped late events, the move completes with every step (read at rest), the latch stays locked. The armed clamp is proven on the host (rule 28). forgetest/forgetest/suite/cloud.py: - gfhome_homing drains the driver's answer to $H once the session ends: it sits behind the status reports and passed for the reply to the caller's next command (a setting read as None). forgetest/forgetest/baseline.py: - The hand-back reads the position counters at the kernel's own microstep mode (cnc/x_mode, read before the sysfs restore puts the settings' mode back). At the x8 constant, an x32 machine's 30 mm read as 120 mm, beyond the return bound, and the displaced head was left in place. The dead band scales the same way. tests/test_baseline.py holds both. Proof. Host: stream rules 1 to 29 and z_envelope rules 1 to 10 against the null-sink driver, the forgetest unit tests. Bench reference: motion.soft-limits passed (X 495 and Y 279 refused with ALARM:2 and 0.000 mm of kernel motion, X-1 the same, the jog error:15, the inside move ran, back at the corner 0.0/0.0 mm); motion.deadman passed with the new phase (92 late events clamped, max behind 92.3 ms, no underrun, 30.0 mm counted, latch locked) and the hand-back jogged the head back under the x32 scale.
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.