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OrcaSlicer Integration

LayerNexus uses OrcaSlicer API to slice your STL files into G-code directly from the web interface — no need to open OrcaSlicer on your desktop.

How It Works

  1. You upload an STL file to a part in LayerNexus.
  2. You pick a slicer profile and click Slice.
  3. LayerNexus sends the file to the OrcaSlicer API container running alongside it.
  4. OrcaSlicer slices the model and sends the G-code back.
  5. LayerNexus saves the G-code and shows you the estimated print time and filament usage.

If you followed the Quick Start, the OrcaSlicer API container is already running and connected — no extra setup needed.

Importing Profiles

Before you can slice, you need to import your OrcaSlicer profiles. Three types are required:

  • Machine profile — your printer hardware settings (build volume, nozzle size, etc.)
  • Filament profile — filament settings (temperature, flow, cooling)
  • Print preset — quality and speed settings (layer height, infill, speed)

How to Import

  1. In OrcaSlicer desktop, export your profiles as JSON files (from the profile editor).
  2. In LayerNexus, go to OrcaSlicer Profiles in the navigation bar.
  3. Click Import and upload the three profile files.
  4. The profiles are now available when slicing parts.

Tip

You can set a default slicer profile on a project. All parts in that project will use the default profile unless you pick a different one.

Slicing a Part

  1. Open a part that has an STL file uploaded.
  2. Select the slicer profile (machine + filament + print preset).
  3. Click Slice.
  4. Wait a moment for OrcaSlicer to process the file.
  5. When done, you'll see:
    • Estimated print time
    • Filament usage (grams and meters)
    • Layer count

From here, you can upload the G-code to a printer and start printing.

Troubleshooting

If slicing fails, check that the OrcaSlicer container is running:

docker compose ps orcaslicer

If it's not running, restart it:

docker compose restart orcaslicer

Next Steps