MCP 3D Printer Server

{
  "mcpServers": {
    "mcp-3d-printer-server": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-3d-printer-server"
      ]
    }
  }
}

claude mcp add --transport stdio mcp-3d-printer-server -- npx -y mcp-3d-printer-server

{
  "mcpServers": {
    "mcp-3d-printer-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcp-3d-printer-server"
      ]
    }
  }
}

{
  "servers": {
    "mcp-3d-printer-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcp-3d-printer-server"
      ]
    }
  }
}

Config formats checked against the official docs on Oct 7, 2026: modelcontextprotocol.io (opens in a new tab), code.claude.com (opens in a new tab), cursor.com (opens in a new tab), code.visualstudio.com (opens in a new tab).

• get_stl_info

  Inspect an STL file without modifying it. Returns the bounding box, dimensions, center, vertex count, and face count.

• scale_stl

  Scale a model uniformly with scalefactor, or per axis with scalex, scaley, and scalez.

• rotate_stl

  Rotate a model around the X, Y, and Z axes, in degrees. Omitted axes default to 0.

• translate_stl

  Move a model along the X, Y, and Z axes, in millimeters. Omitted axes default to 0.

• extend_stl_base

  Add solid geometry underneath the model to raise and widen its base.

• merge_vertices

  Merge vertices closer together than tolerance (millimeters, default 0.01).

• center_model

  Move the model so the center of its bounding box is at the origin (0, 0, 0).

• lay_flat

  Find the model's largest flat face and rotate the model so that face rests on the XY plane (Z = 0).

• modify_stl_section

  Apply a scale, rotation, or translation to one section of a model: the top, bottom, or center third of its bounding…

• generate_stl_visualization

  Render an SVG with front, side, top, and isometric views of a model.

• get_printer_status

  Read the printer's current status. The response is the backend's own status data: Bambu returns temperatures, job…

• list_printer_files

  List the files stored on the printer or its host software. On Bambu printers it lists the cache/, timelapse/, and…

• upload_gcode

  Upload G-code to the printer, and optionally start it. Pass gcodepath for a local file, or gcode with the content (or…

• start_print

  Start a G-code file that is already stored on the printer. The server downloads that exact file, inspects it, checks…

• cancel_print

  Cancel the current print job. Cancelling is never gated and also cancels checked prints still waiting to start.

• set_printer_temperature

  Set a target temperature for a printer component. Use bed or extruder; Bambu also accepts nozzle, tool, and tool0.

• temperature

  must be a finite number of 0 or more. 0 switches the heater off and is never gated.

• print_3mf

  Upload a sliced .3mf project to a Bambu printer over FTPS and start it with an MQTT projectfile command that carries…

• ams_mapping

  is an object whose values are AMS slot numbers. When it is omitted, the mapping embedded in the 3MF is used; with no…

• nozzle_type

  sets the installed nozzle when the project must be auto-sliced. The job's nozzle type must match the printer's report.

• bed_type

  is one of texturedplate, coolplate, engineeringplate, or hotplate (default BEDTYPE, else texturedplate).

• nozzle_diameter

  accepts 0.2, 0.4, 0.6, or 0.8 (default NOZZLEDIAMETER or 0.4).

• layer_height

  nozzletemperature, bedtemperature, and supportenabled are accepted but not applied: those settings are baked into…

• check_fulu_orca_setup

  Inspect a FULU OrcaSlicer-bambulab install: the executable, the platform runtime payload, the install and verify…

• fulu_bambu_network_rpc

  Call one FULU BambuNetwork bridge method for diagnostics. Read-only methods such as bridge.handshake,…

• slice_stl

  Slice an STL or 3MF with the configured slicer and return the output path: G-code for PrusaSlicer, Slic3r, generic…

• slicer_profile

  is a process profile only. A machine;process list is rejected with instructions.

• load_filaments

  Filament profile JSON paths in slot order, ;-separated. One profile applies to every slot; otherwise give one per…

• load_filament_ids

  Comma-separated filament IDs mapping filaments to objects, such as 1,2,3,1

• filament_colours

  One #RRGGBB per filament slot, ;-separated. Defaults to the input 3MF's colours, then each profile's colour

• slice_with_template

  Slice an STL or 3MF with a named template from the local template registry.

• list_templates

  List the saved slicing templates (.3mf, .json, .config) in the registry directory, BAMBUTEMPLATEDIR (default…

• save_template

  Copy a local .3mf, .json, or .config file into the template registry.

• get_slice_settings

  Read the slicer settings in a 3MF, an extracted projectsettings.config, or a profile JSON without slicing: layer…

• confirm_temperatures

  Report every heater target in a G-code file: S and R forms, tool-addressed targets, RepRapFirmware G10/M568, and…

• process_and_print_stl

  Extend an STL's base, slice it, and print it through the same checked print gate as uploadgcode and print3mf,…

• blender_mcp_status

  Inspect the Blender MCP configuration. With connect: true, it starts the configured server, initializes it, and lists…

• blender_mcp_call

  Call a tool the Blender MCP server advertises, such as getsceneinfo or executeblendercode, with arguments matching its…

• blender_mcp_export_stl

  Export named objects from the live Blender scene to a new STL for slicing.

• output_path

  must be new and its parent must exist; nothing is ever overwritten.

Thank you, FULU Foundation, Louis Rossmann, and the OrcaSlicer-bambulab contributors. Thank you for standing up for consumer ownership, open-source developers, repair rights, and owners whose working hardware should not be made worse by locked-down software. This server treats the FULU OrcaSlicer-bambulab fork as a first-class slicer for Bambu Lab projects. See the FULU guide for setup and current status.

• 3d-printing
• bambu-lab
• bambu-studio
• duet
• klipper
• mcp
• mcp-server
• modelcontextprotocol
• moonraker
• octoprint