Name: gcode
Author: earthtojake

Generate, inspect, dry-run, and statically validate plain FDM `.gcode` from 3D mesh files by orchestrating real slicer CLIs. Use when Codex needs to slice `.stl`, `.obj`, unsliced `.3mf`, `.ply`, `.glb`, or `.gltf` into printer-profiled G-code, discover local slicer backends, inspect whether a mesh

G code Provenance: maintained in [earthtojake/text to cad](https://github.com/earthtojake/text to cad). Use the installed local skill files as the runtime source of truth; the repository link is only for provenance and release review. Slice with OrcaSlicer, headless (below) or by opening the model in the OrcaSlicer app for the user. The agent never contacts a printer: for a Bambu Lab printer, hand the result to $bambu labs ; for any other printer, give the user the .gcode . Install OrcaSlicer macOS: brew install cask orcaslicer . The command line is /Applications/OrcaSlicer.app/Contents/MacOS/OrcaSlicer . Windows and Linux: install a release from https://github.com/OrcaSlicer/OrcaSlicer/releases. The command is orca slicer ; on Linux, run it from the AppImage or Flatpak. Below, <orca is that command. Slice headless OrcaSlicer's command line (https://www.orcaslicer.com/wiki/cli/cli mode) needs complete presets: it doesn't fill in a preset's parent settings, and it slices only with a process whose compatible printers name the printer. scripts/orca presets.py (Python 3, no dependencies) writes them from OrcaSlicer's presets, searching the user's own first, then OrcaSlicer's built in profiles. 1. Find the user's printer, process and filament presets. Prefer the presets the user prints with; never invent one, since a wrong bed size or temperature can damage the printer. 2. Write the complete presets: 3. Slice. Give outputdir an absolute path: This writes plate 1.gcode , the plain G code, and model.gcode.3mf , the sliced 3MF, into that folder. The command line reads .stl , .3mf , .obj and .amf ; export STEP to STL or 3MF with $cad first ( cadgen export <id part.3mf from a model, or cadgen export part.step part.3mf ). Override one setting with <setting =<value , using the setting's key with hyphens for underscores, such as layer height=0.16 . Open in OrcaSlicer When the user would rather pick presets and slice themselves, or no preset can be found, open the model in the app: open a OrcaSlicer model.stl on macOS, Start Process model.stl on Windows when OrcaSlicer opens that file type, or orca slicer model.stl on Linux. The app also reads STEP. Check before printing <orca model.stl info prints the model's size; it has to fit the bed. Check the slice's settings, which OrcaSlicer writes at the end of the G code: Confirm they match the user's printer and material before anyone prints it. Hand off A Bambu Lab printer: $bambu labs , with the .gcode.3mf . Any other printer: the user prints the .gcode from their printer's app, its web interface (PrusaLink, OctoPrint, Mainsail, Fluidd) or an SD card.