Atlas / MCP servers / dmontgomery40 / Bambu Printer

Bambu PrinterBLOCK

Name: Bambu Printer
Author: dmontgomery40

mcp/dmontgomery40/bambu-printer

MCP server by dmontgomery40 · 3d printing · 3js · 3mf · Audited 2026-10-07

MCP server for Bambu Lab 3D printers — STL manipulation, BambuStudio or FULU/orca slicing, Blender MCP integration, and direct printer control

Verdict

BLOCK

Grade

Trust score

69 /100

Exposed tools

45 27r · 16w · 2d

Transport

stdio · streamable-http

License

GPL-2.0

Stars

174

Overview

From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.

Thank you, [FULU Foundation](https://www.fulu.org/), [Louis Rossmann](https://www.youtube.com/watch?v=1jhRqgHxEP8), and the [OrcaSlicer-bambulab contributors](https://github.com/FULU-Foundation/OrcaSlicer-bambulab). We stand with open-source developers, the right to repair, and your right to control hardware you own. You should be able to choose your software and print without a vendor cloud standing in the way. Want to skip Bambu's software and cloud? Use FULU OrcaSlicer-bambulab to slice and export, then this MCP's direct LAN path on supported printers and firmware. That workflow does not require Bambu Studio, Bambu Connect, or Bambu Cloud. Start with the FULU setup guide. The optional BambuNetwork bridge is a separate path that still uses Bambu's networking runtime; cloud jobs still use Bambu's services.

[](https://www.npmjs.com/package/bambu-printer-mcp) [](https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html) [](https://www.typescriptlang.org/) [](https://nodejs.org/en/download/) [](https://github.com/DMontgomery40/bambu-printer-mcp) [](https://www.npmjs.com/package/bambu-printer-mcp)

A Bambu Lab-focused MCP server for controlling Bambu printers, manipulating STL files, and managing end-to-end 3MF print workflows from Claude Desktop, Claude Code, or any MCP-compatible client.

[Browse the documentation site](https://dmontgomery40.github.io/bambu-printer-mcp/) for searchable

Read from source at commit dac5c7bfed4cOBSERVED · 2026-10-07

Connect

Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control. Replace the environment placeholders with a token scoped to the least it needs.

claude-code

claude mcp add bambu-printer-mcp-site --env BAMBU_CLIENT_KEY=${BAMBU_CLIENT_KEY} --env BAMBU_PRINTER_ACCESS_TOKEN=${BAMBU_PRINTER_ACCESS_TOKEN} --env BAMBU_TOKEN=${BAMBU_TOKEN} -- npx -y bambu-printer-mcp-site

claude-desktop

{
  "mcpServers": {
    "bambu-printer-mcp-site": {
      "command": "npx",
      "args": [
        "-y",
        "bambu-printer-mcp-site"
      ],
      "env": {
        "BAMBU_CLIENT_KEY": "${BAMBU_CLIENT_KEY}",
        "BAMBU_PRINTER_ACCESS_TOKEN": "${BAMBU_PRINTER_ACCESS_TOKEN}",
        "BAMBU_TOKEN": "${BAMBU_TOKEN}"
      }
    }
  }
}

Exposed tools (45)

27 read · 16 write · 2 destructive. Blast radius: 2 tools can delete or overwrite — an agent that can be talked into calling a tool can be talked into calling this one.

Tool	Risk	Description
`bambu_connect_import_file`	write	Open an existing G-code or sliced 3MF file in the signed-in Bambu Connect app through its official URL scheme. This is a cloud-mode handoff and does not start printing by itself.
`bambu_network_bridge_status`	read	Inspect or probe the FULU OrcaSlicer-bambulab BambuNetwork bridge runtime used for cloud and restored BambuNetwork printing.
`bambu_network_call`	read	Call a raw FULU OrcaSlicer-bambulab BambuNetwork bridge method, optionally with an initialized network agent injected into the payload.
`blender_mcp_call`	read	Call a discovered tool on the configured Blender MCP server, preserving its full MCP content and errors. Discover tool schemas with blender_mcp_status first; execute_blender_code accepts Python code and user_prompt. Calls can modify the active Blender scene and are never automatically retried.
`blender_mcp_edit_model`	write	Import, edit, and export a local STL through standard Blender MCP with verified output and existing scene objects preserved. Requires a shared local filesystem and Blender Object Mode. Also supports a separately configured legacy executable bridge.
`blender_mcp_status`	read	Inspect Blender MCP configuration or connect and discover the remote server
`camera_snapshot`	read	Capture a single JPEG frame from the printer
`cancel_print`	read	Cancel the current print job on the Bambu Lab printer
`center_model`	read	Translate the model so its geometric center is at the origin (0,0,0)
`clear_hms_errors`	destructive	Clear HMS or print error state on the Bambu Lab printer using the clean_print_error MQTT command.
`delete_printer_file`	destructive	Delete a file from the Bambu Lab printer
`extend_stl_base`	read	Extend the base of an STL file by a specified amount
`get_printer_filaments`	read	Get the live AMS/external filament inventory from the printer over MQTT, including loaded/empty slot summary, resolved slicer profile paths, match confidence, and recommended load_filaments when the printer model is known.
`get_printer_status`	read	Get the current status of the Bambu Lab printer
`get_slice_settings`	read	Inspect slicer settings from a saved 3MF template or a JSON/config slicer profile without slicing anything.
`get_stl_info`	read	Get detailed information about an STL file (bounding box, face count, dimensions)
`lay_flat`	read	Rotate the model so its largest flat face lies on the XY plane (Z=0)
`list_3mf_plate_objects`	read	List object IDs from a sliced 3MF plate. Use these IDs with skip_objects during a running print.
`list_printer_files`	read	List files stored on the Bambu Lab printer
`list_templates`	read	List saved slicing templates from the local template registry directory.
`merge_vertices`	write	Merge vertices in an STL file closer than the specified tolerance
`pause_print`	read	Pause the current print job on the Bambu Lab printer (resumable via resume_print)
`print_3mf`	read	Print a 3MF file on a Bambu Lab printer. Auto-slices if the 3MF has no gcode. IMPORTANT: bambu_model must be specified to ensure safe printer operation.
`print_3mf_bambu_network`	read	Print a 3MF through FULU OrcaSlicer-bambulab
`print_collar_charm`	read	Print a prepared two-part dog collar charm project using the fixed tray policy: inner/smaller object -> black on AMS 1 slot 1, outer/larger object -> white on AMS 2 slot 1.
`reread_ams_rfid`	write	Trigger a Bambu AMS RFID re-read for one AMS slot. X2D on macOS uses the native official plug-in route. This can move AMS filament; use only when the printer is idle and unloaded.
`resolve_3mf_ams_slots`	read	Inspect a sliced 3MF and match its tray_info_idx filament requirements against the live AMS inventory. Does not upload or start a print.
`resume_print`	read	Resume a paused print job on the Bambu Lab printer
`rotate_stl`	read	Rotate an STL file by specified angles (degrees)
`save_template`	write	Copy a 3MF, JSON, or config file into the local template registry and register it under a template name.
`scale_stl`	read	Scale an STL file by specified factors
`set_airduct_mode`	write	Set H2/P2 airduct mode to cooling or heating.
`set_ams_drying`	write	Start or stop the AMS filament drying cycle. X2D on macOS uses the native official plug-in route and supports AMS-HT id 128.
`set_fan_speed`	write	Set a Bambu printer fan speed percentage. X2D on macOS uses the installed Bambu networking plug-in without UI automation; other models use MQTT.
`set_light`	write	Set a Bambu printer light node mode using the printer
`set_print_speed`	write	Set the active print speed mode: silent, standard, sport, or ludicrous.
`set_temperature`	write	Set a checked bed or nozzle temperature. Positive heating requires matching fresh printer telemetry; nozzle heating also requires declared material. Zero turns the heater off.
`skip_objects`	read	Skip specific object IDs during a running multi-object print using the printer
`slice_stl`	read	Slice an STL or 3MF file using a slicer to generate printable G-code or sliced 3MF. IMPORTANT: bambu_model must be specified to ensure the slicer generates safe G-code for the correct printer.
`slice_with_template`	read	Slice an STL or 3MF using a named template from the local registry. This is a higher-level wrapper around slice_stl for template-based workflows.
`start_print`	write	Start printing a G-code file already on the Bambu Lab printer. Alias of start_print_job for upstream MCP compatibility.
`start_print_job`	write	Start printing a G-code file already on the Bambu Lab printer
`upload_file`	write	Upload a local file to the Bambu Lab printer
`upload_gcode`	write	Inspect a G-code file and upload a uniquely named copy without overwriting existing printer files.
`x2d_native_control`	write	Read calibration results or update X2D AMS metadata/calibration selection through the installed plug-in. Raw motion, heating, task control, and safety-setting changes are rejected.

Trust audit

BLOCKgrade D · trust 69/100 Do not install this without reading the findings. The audit found something that could harm you or your machine.

Layer	What it checks	Result
L0	Provenance & inventory	PASS
L1	Static analysis of the code	FAIL
L2	Instruction surface (what it tells the agent)	FAIL
L3	Class-specific surface	WARN
L4	Behavioural (sandbox)	SKIPPED