loobric-masso

Loobric client for MASSO G3 CNC controllers. MASSO has no network door for tool data — the controller saves its settings (including the .htg tool table) to a USB stick and loads them back from it. This client reads and writes that file on the mounted stick:

  • push — harvest the controller's tool table into Loobric: every in-use tool becomes an unbound tool-table entry with its probed Z offset and diameter as observed values (observed:masso@<machine>). The offsets your probing produced stop dying on the USB stick.
  • write — update the tool table from Loobric: names, diameters, and slots follow the server; the controller's probed Z offsets are preserved unless a bound tool carries a server-side Z. A different tool appearing at an occupied number keeps the old offset and warns RE-PROBE. Machine Settings are zipped to MASSO/loobric-backups/ before every write, and untouched records round-trip byte-exact — including the controller's own CRC variants and the reserved records (T0, T101–T104).
  • sync — push, then write.

Single file, standard library only, Python 3.6+. Server errors never block anything (cron-safe exit 0); configuration errors exit 2.

Quick start

pip install loobric-masso        # or just copy loobric_masso.py
loobric-masso init               # writes ~/.config/loobric/masso.conf — edit it
loobric-masso doctor             # checks config, USB stick, and server
loobric-masso sync

On the controller: F1 Setup > Save & Load Calibration Settings — Save to file before syncing, Load from file + reboot after a write.

The .htg format

Reverse-engineered on the MASSO community forum (thread 4563) and validated by three independent decoders that agree byte-for-byte. 6720 bytes = 105 records × 64 bytes; record 0 is the controller's reserved dry-run entry, T101–T104 are multi-spindle heads (100 usable tools).

Offset Type Field
0–39 ASCII Tool name (UI caps at 29 chars)
40 float32 LE Z offset
44 float32 LE Z wear
48 float32 LE Diameter wear
52 float32 LE Diameter
56 byte Tool direction
57 int8 Slot (−1 = manual/unassigned)
60 uint32 LE CRC32 of bytes 0–59

The controller sometimes writes its own CRC variant; this client preserves the stored bytes of every record it does not modify, so those survive verbatim.

License

MIT.

Key dates

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Avatar for sliptonic from gravatar.com sliptonic

Credits

Author: sliptonic

License

MIT

Requires

Python >=3.6

Tags

cnc masso tooling loobric

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