Maker · Blender and 3D printing¶

If you are a maker, Jarvis connects to Blender to generate and edit 3D models, and to 3D printers (Klipper/Moonraker, OctoPrint, Bambu, Prusa) to control your prints from chat or voice.

What you can do¶

• 🎨 AI 3D generation: text-to-3D, image-to-3D directly from chat
• 📐 Blender editing in natural language ("scale model to 60%", "export as STL")
• 🖨️ Voice print start: "Hey Jarvis, print that model in PLA"
• 📊 Real-time print monitoring (temperature, layer, ETA)
• 🚨 Automated alerts (failure detection, end of print, errors)
• 🛠️ Automated slicing with custom presets
• 📚 Model library management with AI tagging

Blender automation¶

Stack¶

• bpy on PyPI — installable via pip install bpy==4.3.0, lets you use Blender as a Python library in external pipelines (server-side, headless)
• fake-bpy-module — IDE autocomplete without Blender installed
• Modern approach: addons as standard Python packages, testable outside Blender

AI 3D generation in Blender¶

Typical Jarvis workflow¶

flowchart LR
    USER[User] -->|"create a hexagonal vase"| JAGENT[Maker Agent]
    JAGENT --> GEN[AI generation<br/>TRELLIS-2 / Meshy / Tripo]
    GEN --> GLB[GLB file]
    GLB --> BPY[bpy<br/>scale · orient · repair]
    BPY --> STL[STL file]
    STL --> SLICER[Slicer CLI<br/>OrcaSlicer / PrusaSlicer]
    SLICER --> GCODE[G-code]
    GCODE --> PRINTER[3D Printer]

AI 3D generation¶

Recommendation: TRELLIS-2 self-hosted for quality + Meshy as cloud fallback.

3D printing — stack¶

Klipper + Moonraker¶

The modern flexible stack. Moonraker exposes Klipper APIs over REST/WebSocket on port 7125:

Recommended UIs: Mainsail or Fluidd (consume only Moonraker). KIAUH for installation.

OctoPrint¶

Mature for Marlin. Plugins: failure detection, timelapse, OctoEverywhere for AI failure detection via computer vision.

Bambu Lab¶

X/P series printers communicate via local MQTT (port 8883, TLS) and FTP for files.

PrusaLink / Prusa Connect¶

REST APIs documented via OpenAPI spec. PrusaLink local, Prusa Connect cloud for remote.

Slicer CLI (open source)¶

• PrusaSlicer — prusa-slicer-console.exe --export-gcode model.stl
• OrcaSlicer — multi-printer fork
• Cura — built-in CLI

Unified printer MCP¶

mcp-3D-printer-server (DMontgomery40) unifies OctoPrint, Moonraker, Bambu Lab, Duet, Prusa, Creality into a single MCP interface. Jarvis can use it to control heterogeneous printers.

Configuration¶

# Klipper / Moonraker
MOONRAKER_URL=http://moonraker.local:7125
MOONRAKER_API_KEY=...

# OctoPrint
OCTOPRINT_URL=http://octopi.local
OCTOPRINT_API_KEY=...

# Bambu Lab
BAMBU_LOCAL_IP=192.168.1.50
BAMBU_ACCESS_CODE=...
BAMBU_SERIAL=...

# Prusa
PRUSALINK_URL=http://prusa.local
PRUSALINK_API_KEY=...

# Slicer
SLICER_BIN=/usr/local/bin/prusa-slicer-console
SLICER_CONFIG=/data/slicer/profiles/pla-0.2-std.ini

# Blender bpy
BLENDER_BPY_VERSION=4.3.0

Usage examples¶

Generation + print from chat¶

"Create a hexagonal pen holder, 12 cm tall, round the edges and print it in white PLA"

Jarvis: Model generated with TRELLIS-2 (preview: [link])
        Imported in Blender → edge rounding (radius 2mm)
        STL exported: 84 KB, 12.3 cm height
        Sliced with PLA-0.2-standard preset: 1h 47m, 18g filament
        MK4S printer is free, start print? [Yes/No]

You: Yes
Jarvis: Print started. ETA: 19:32. I'll notify you at end of print.

Monitoring¶

"How is the print going?"

Jarvis: Layer 145/388 (37%), 35°C bed, 215°C hotend, 42min elapsed.
        ETA: 19:32. No issues detected.

Failure detection¶

maker:
  alerts:
    - name: "Print failed"
      source: "octoeverywhere.failure_detected"
      action: pause_and_notify
    - name: "Hotend overheating"
      condition: "hotend_temp > target + 15"
      action: pause_emergency

Model library¶

"Show me models I printed last month"

The agent reads OctoPrint History files or the filesystem, applies AI tagging (auto-categorisation: vase, support, gear, …) and shows you a gallery.

Privacy¶

• ✅ 3D generation 100% local with TRELLIS-2
• ✅ Slicing and printing 100% local
• ❌ Meshy/Tripo cloud: the prompt and any image go to the provider

Roadmap¶