Oleksandr ShyshatskyiandClaude Opus 5
fbb3182e68
verify.sh described itself as "simulate every check the printer performs,
against a built package". The word carrying that sentence is SIMULATE, and it
is why thirty-six of the forty are deleted rather than moved.
THE REPLICA LANE DOES NOT SIMULATE THE INSTALL. install-package.sh puts the
package on a genuine FAT filesystem at /dev/sda1 and runs the machine's own
/usr/prog/app_startup.sh over it, verbatim, under qemu. So these are
PRECONDITIONS of the lane now rather than assertions in it -- break any and
installed_image() raises with the install log and the whole lane goes red:
* the decrypt with the firmware key (the printer's unTar does it)
* runFirmwareExe.sh present, components plain tar not xz (bare `tar -xvf`)
* md5sum.list verifying (the installer aborts and deletes the payload)
* the MACHINE= gate (runFirmwareExe.sh refuses a foreign package)
* the /mnt/<Model>-*.tgz glob (app_startup.sh finds the file by it)
A host-side re-reading of those rules is a second implementation, and a second
implementation can agree with itself while disagreeing with the printer. That
is the defect qa/replica/conftest.py records this repo learning twice about
hand-placed payloads.
A second block was asking what the suite already answers, of an installed
filesystem rather than of a tar listing: the klippy tree and c_helper.so
(test_install, test_abi), the s6-rc database and the oneshot runner's execline
(test_s6rc), s6 and s6-ftrigrd (test_supervisor), the .install-manifest
(test_upgrade), libsodium's bare .so symlink and the chamber configs
(static/test_ipk), and every shipped script's syntax
(static/test_shell_syntax).
THE FOUR THAT MOVED are the ones nothing else asks, and each is stronger for
the move -- a `tar -t` listing cannot tell you that a shared object loads, or
what a name resolves to on a PATH:
* the interpreter IMPORTS sqlite3, lmdb and _cffi_backend, rather than a
grep finding three .so files. This is what catches a cross build that
resolved to an x86_64 manylinux wheel: present on disk, raises on import.
* nothing in $MODDIR/bin shadows FlashForge's python3 -- asked with
`command -v` after sourcing anvil-env.sh, which is the file that PREPENDS
$MODDIR/bin to PATH and so creates the hazard in the first place.
* CPython's dev half (headers, pkgconfig, config-3.13-*) did not ship.
* the ship boundary: no file on the installed printer is byte-identical to
one under bin/ or docker/. Asked of the machine rather than of the .tgz,
so it also sees whatever a maintainer script wrote as root at install
time. The sweep filters on exact size before hashing, which is what keeps
a walk of /usr/prog through qemu cheap.
WHAT GENUINELY LEFT, recorded in docs/qa-migration.md rather than only here:
there is no longer a check you can run on the build host, in seconds and
without docker, against a package you are about to flash. Nothing warns you
before you copy the file to a stick that it was built from the wrong model's
stock package. The printer still refuses it and `make qa-replica` still
catches it, but the fast host-side warning the hardware checklist used is
gone. `make verify` is removed and `make release` no longer calls it.
VERIFIED. All four ran against a real replica (the cached installed image,
PRINTER_IMAGE=monstrofil/creator5-printer:latest): 4 passed in 17s. Then each
was DRIVEN RED on purpose with a throwaway module, which is this repo's own
standard from 4ce928f -- bin/common.sh copied byte-for-byte into $MODDIR, a
python3 symlink in $MODDIR/bin, an include/python3.13 directory, and a module
name that does not exist. Each was caught, each named the planted file in its
message, and each went green again once it was removed. The leak sweep walks
21132 files under $MODDIR and /usr/prog, so its floor of 100 is not load
bearing. The static lane goes 123 -> 122, which is exactly the `bash -n` test
that test_shell_syntax.py generated per bin/*.sh file.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GAQKdBfZxbnPagQyidFk6Y
Reforge
Custom firmware for the FlashForge Creator 5 and Creator 5 Pro.
It installs the way a normal FlashForge update does: copy one file to a USB stick, plug it in, power the printer on. No jailbreak, no soldering, no opening the case, no ssh needed to get started — the printer's own updater does the work.
Packages are published on the Releases page — two files per release, one per model, marked pre-release while the mod is young. Help and support: the Discord.
Unofficial and unaffiliated with FlashForge. It voids your warranty and you are responsible for your machine. See Status for what has actually been tried on hardware before you flash anything.
Status
It runs on a real printer — a Creator 5 Pro, flashed and printing:
A checked box happened on that machine; an empty one has not, yet.
For everyone:
- Install and migration from stock firmware — the printer's own updater does it; your unit's factory calibration imports itself on the first boot
- Printing — gcode straight from the slicer, nothing edited
- Toolchanges — a current Klipper with real toolchanger support, in place of the 0.12-era tree FlashForge ships
- Nozzle-offset calibration
- Mainsail at
http://<printer-ip>/, with a current Moonraker behind it — anything that speaks the Klipper API works - Camera — mjpg-streamer, already on the printer; the mod just starts it
- Wifi
- HelixScreen on the printer's own screen
- Chamber heater
- Creator 5 (non-Pro) — its package builds and passes the same replica test suite, but has not touched hardware
- Going back to stock — proven on the printer replica, not yet needed on the machine. The stock package restores everything it carries; Moonraker is not in it, so the mod's build stays and keeps working — see Support
For the tinkerer:
- ssh as root — a random password is chosen on the first install
and written to
anvil-password.txton your stick; updates keep it (make passwdbakes in your own)
What you give up
FlashForge's application is one binary, and replacing it takes everything
that lived inside it: the network API on :8898, and with it FlashPrint,
Orca's FlashForge profile and the mobile app. Moonraker's API takes over.
Flashing the stock package brings them back.
If your prints already come out the way you want and you like the printer's own screen, this mod is not for you. It trades FlashForge's polish for Klipper's reach, and it expects you to be comfortable with a Klipper config and an ssh session when something breaks — Is this for you is the honest version of that question.
Get it
Creator 5 and Creator 5 Pro are not interchangeable. The printer refuses a package built for the other model — the most common reason a flash "does nothing". Yours is in Settings → About.
| Your printer | The file on the Releases page |
|---|---|
| Creator 5 | Creator5-anvil-<date>.tgz |
| Creator 5 Pro | Creator5Pro-anvil-<date>.tgz |
Download the stock FlashForge package for your model before you begin. It is the undo button: flashing it back puts the printer as it was.
Start here
| Is this for you | Who should flash this, who should stay on stock, and what it asks of you |
| Installing | The flash, the first boot, your root password |
| Your first print | The go/no-go checks, calibration, and the two verification files |
| Support | The logs, and the way back to stock |
The full manual is at
reforge.readthedocs.io. If you want the
insides — one file, firmwareExe, with the stock boot scripts, updater and
recovery path left untouched — How it works is under
For contributors.
Credits
Built on the work of others: ghzserg/FF publishes the stock packages and factory image everything here starts from; Mainsail, Moonraker and HelixScreen are shipped as released; the toolchanger status API follows viesturz/klipper-toolchanger so tool-aware UIs work unchanged.