nodecode-orcaslicer

OrcaSlicer: search the installed presets, slice a model, read the job, and check or load a printer. A Nodecode rewrite of mazzanfar/hermes-orcaslicer by mazzanfar.

The stock OrcaSlicer on your machine does the slicing; this cell drives it and keeps the job. It gives the model seven tools:

Tool	What it does
`orca_diagnose`	The OrcaSlicer it found, whether that build's command line carries every flag slicing needs, the preset roots it reads, the printers configured.
`orca_presets`	Search the installed machine, process and filament presets, for any manufacturer, and answer exact paths.
`orca_slice`	Slice one model or one plate into a job: a copy of the input, the resolved presets, `slice.log`, the artifacts with their sha256, and what the G-code's own comments report.
`orca_job`	One job's record, as it stands.
`orca_export`	Copy an artifact to a new path for an SD card or a stick. It never overwrites a file.
`orca_printer_status`	One read-only look at a configured printer: state, readiness, progress, temperatures, the loaded file.
`orca_upload`	Upload a job's G-code to an idle printer. It never starts printing.

/orca reports what the cell can see without slicing or printing.

Get it

Tell the agent "add the orcaslicer cell", or run nodecode add nc://orcaslicer.

Set it up

Nothing is required: when OrcaSlicer sits on PATH or at a desktop install's own path, the cell finds it, and a preset search reads the install's presets. The section ~/.nodecode/config.jsonc may carry is:

{
  "orcaslicer": {
    "slicer": "/usr/bin/orca-slicer",          // the executable itself, not the .app
    "profiles": ["/usr/share/OrcaSlicer/resources/profiles"],
    "state_dir": "~/.nodecode/orcaslicer/",     // where jobs and artifacts live
    "printers": [
      {"name": "voron", "kind": "moonraker", "url": "http://printer.lan:7125",
       "api_key_env": "ORCA_VORON_KEY"}
    ],
    "slice_timeout": 1800, "printer_timeout": 20, "max_presets": 30
  }
}

A printer is moonraker, octoprint or prusalink, with its own base URL. Its key is named, never written: api_key_env must be an ORCA_ or HERMES_ORCA_ variable, so a printer URL can never be handed another application's token, and the cell reads it at call time. A printer's slice is reached over the address you gave; nothing else is contacted.

Use it

Ask for the printer you have, not a preset name from memory:

which PLA process presets are installed for a 0.4 nozzle? slice ~/Models/bracket.stl for the Voron at 0.2mm with three walls what did the last slice report, and is the printer free? upload that job — then I will start it at the printer

The first answer is a path to pass on. Slicing is one call that returns when OrcaSlicer exits, so the job's state is always the truth: sliced or failed, with the log beside it. A failure says what the slicer said.

What a slice is not. Slicing success is not a print: the cell cannot see the bed, the filament or the toolpath. orca_job reports the slicer's own estimates (time, filament, layer count) from the G-code's comments, and the rest is for a person to check.

What it does not do

No Bambu LAN, Duet or Flashforge printers: Moonraker, OctoPrint and PrusaLink only. A Bambu printer is reached by exporting the file and using OrcaSlicer's own upload.
No per-object process settings or per-instance move/rotate/scale inside a 3MF: the cell changes global process settings (layer_height, initial_layer_print_height, wall_loops, top_shell_layers, bottom_shell_layers, sparse_infill_density, enable_support), each within its bound, and leaves the rest to the preset or the project.
No camera snapshot, no SVG layer preview, and no "open it in OrcaSlicer for review" — open the artifact yourself.
changes ride a partial settings file over the presets or the project, so inspect the sliced artifact before printing.

Test

From the cells repository's root:

.github/test-cell.sh tools/nodecode-orcaslicer

No OrcaSlicer runs and no printer is dialled: the slicer is a stubbed function that writes the G-code a real slice would, and every printer request is a stubbed nlk:http.

MIT licensed; see NOTICE.