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Printer guide · Confirmed

Filament tracking for the Elegoo Centauri Carbon 2

Spoolroom can log every finished print from an Elegoo Centauri Carbon 2 on its own, with the grams, the color, the slicer thumbnail and the timelapse, and take the filament off the right spool. It's confirmed on a real CC2.

How it works

The watcher is a small helper you run on a box that stays on at home: a Raspberry Pi, a mini PC, a NAS. It talks to the printer over your own network in LAN Only mode, only reads, never controls it, and only connects outward to Spoolroom.

The grams come from the printer's own record of the job, and the color from the tray that was feeding it. If the printer is still bound to the ELEGOO Matrix app, the watcher says so in Settings instead of quietly logging nothing.

Setup

Elegoo Centauri Carbon 2

Confirmed

What to switch on

  1. On the printer screen: Settings → LAN Only. Turn LAN Only on and note the access code shown there. Setup asks for it.
  2. The printer allows only a few connected apps at once (2–4, depending on firmware). Close ElegooSlicer and the phone app while the watcher connects, or it will be turned away.

Heads-up

LAN Only stops the ELEGOO Matrix phone app; the two can't be used at once. A printer bound to Matrix can't report to the watcher on stock firmware.

What gets logged

Finished prints with the grams from the printer's own job record and the color of the active tray (a multi-color print's grams are split evenly across its colors), the slicer thumbnail, and the timelapse.

The first Centauri Carbon (not the 2) uses a different connection and is still experimental.

No watcher? It still works

The watcher is optional. Log a print by hand, or drop the sliced .gcode or .gcode.3mf file in and Spoolroom reads the grams from it. See every printer the watcher reads.