openHAB

# BambuLab Binding

This addon supports connecting with BambuLab 3D printers in local mode. While cloud mode is theoretically possible, it is not supported by the addon developers.

# Local Mode

  1. Find your printer credentials On Windows, open the Bambu Studio configuration file:

       "access_code": {
   "00ABCDEFG123456": "12345678"
}

    Look for a section like:

       "access_code": {
   "00ABCDEFG123456": "12345678"
}
  • 00ABCDEFG123456 → Serial number
  • 12345678 → Access code

  1. Enter the details in openHAB

    • Serial number → Enter the serial number from the config file
    • Access code → Enter the access code from the config file
    • IP / Hostname → Enter your printer’s network address
    • Username → bblp
    • Series → Select your printer model
    • Other settings → Leave defaults for now

# Cloud Mode

Cloud mode is possible but not officially supported by the addon developers.

To use cloud mode, follow these steps:

# Find Username

Log in to Maker World and visit my-preferences (opens new window) to retrieve a JSON response containing your data. The relevant field is uid, which represents the unique ID of your account. Use this value as the username in the configuration (advanced field) with the prefix u_.

# Access Token

To obtain an access token, you can use the requestLoginCode and requestAccessCode actions available on the printer thing.

  1. Request Login Code: Use the requestLoginCode action with your Bambu Lab username (email) and password. This will send a 6-digit verification code to your email address. Request Login Code
  2. Request Access Code: Once you receive the verification code, use the requestAccessCode action with your Bambu Lab username (email) and the received 6-digit code. This will retrieve the access token and automatically update the printer thing's configuration with the new accessCode and set the hostname to us.mqtt.bambulab.com. Request Access Code

Alternatively, you can use the bambu.sh script as described below:

To obtain an access token, you can use the provided bambu.sh script. This script simplifies the process of logging in and retrieving your access token.

Make the script executable:

chmod +x bambu.sh

Then, run the script and follow the prompts:

./bambu.sh

The script will ask for your email, password, and the verification code sent to your email.

Alternatively, you can provide your credentials as command-line arguments:

./bambu.sh -e "[email protected]" -p "superduperpassword123"

The script will output your access token, which you can then use as the accessCode parameter in your thing configuration.

For more options, like quiet mode for automation, use the help flag:

./bambu.sh --help

Note: This access code expires after three months. When it expires, repeat the process to obtain a new one.

# Hostname

Use us.mqtt.bambulab.com as the hostname.

# Supported Things

  • printer: Represents a BambuLab 3D printer.

# Thing Configuration

Parameter Group Type Required Description
series N/A Text Yes A, P or X depending on your printer series.
serial N/A Text Yes Unique serial number of the printer.
hostname N/A Text Yes IP address of the printer or us.mqtt.bambulab.com for cloud mode.
accessCode N/A Text Yes Access code for the printer. The method of obtaining this varies between local and cloud modes.
username N/A Text No bblp for local mode or your Bambu Lab user (starting with u_). (Advanced)
reconnectTime MQTT Integer No Time in seconds to wait before reconnect. (Advanced)
reconnectMax MQTT Integer No Max times to try reconnections. (Advanced)
scheme MQTT Text No URI scheme. (Advanced)
port MQTT Integer No URI port. (Advanced)
cameraPort Camera Integer No Camera server port. (Advanced)
cameraCertificate Camera Text No To disable the use of your own certificate, enter none. If providing your own certificate, ensure it includes the header -----BEGIN CERTIFICATE----- at the beginning and -----END CERTIFICATE----- at the end. (Advanced)

# Channels

Channel ID Type Description
command String RW Channel Send yor commands to this channel so they will be send to the printer. Check Actions > sendCommand for detailed documentation.
nozzle-temperature Temperature Channel Current temperature of the nozzle.
nozzle-target-temperature Temperature Channel Target temperature of the nozzle.
bed-temperature Temperature Channel Current temperature of the heated bed.
bed-target-temperature Temperature Channel Target temperature of the heated bed.
chamber-temperature Temperature Channel Current temperature inside the printer chamber.
mc-print-stage String Channel Current stage of the print process.
mc-percent Percent Channel Percentage of the print completed.
mc-remaining-time Number Channel Estimated time remaining for the print (in seconds).
wifi-signal WiFi Channel Current WiFi signal strength.
bed-type String Channel Type of the printer's heated bed.
gcode-file String Channel Name of the currently loaded G-code file.
gcode-state String Channel Current state of the G-code execution.
reason String Channel Reason for pausing or stopping the print.
result String Channel Final result or status of the print job.
gcode-file-prepare-percent Percent Channel Percentage of G-code file preparation completed.
big-fan1-speed Number Channel Speed of the first large cooling fan (RPM).
big-fan2-speed Number Channel Speed of the second large cooling fan (RPM).
heat-break-fan-speed Number Channel Speed of the heat break cooling fan (RPM).
layer-num Number Channel Current layer being printed.
speed-level Number Channel Current speed setting of the print job.
time-laps Boolean Channel Indicates whether time-lapse recording is enabled.
use-ams Boolean Channel Indicates whether the Automatic Material System (AMS) is active.
vibration-calibration Boolean Channel Indicates whether vibration calibration has been performed.
led-chamber On/Off Command Controls the LED lighting inside the printer chamber.
led-work On/Off Command Controls the LED lighting for the work area.
camera-record Boolean RW Command Turns on/off OpenHAB's capability of recording.
camera-image Image Current image from the printer's camera.

# Full Example

# bambulab.things Example

Thing bambulab:printer:myprinter "My BambuLab Printer" @ "3D Printing Area" [
    serial="ABC123456789",
    hostname="192.168.1.100",
    accessCode="your_access_code_here"
]

# bambulab.items Example

Number:Temperature NozzleTemperature "Nozzle Temperature [%.1f °C]" { channel="bambulab:printer:myprinter:nozzle-temperature" }
Number:Temperature BedTemperature "Bed Temperature [%.1f °C]" { channel="bambulab:printer:myprinter:bed-temperature" }
String PrintStage "Print Stage [%s]" { channel="bambulab:printer:myprinter:mc-print-stage" }
Switch LedChamber "Chamber LED" { channel="bambulab:printer:myprinter:led-chamber" }

# Actions

The printer thing supports actions:

rule "test"
when
        /* when */
then
val actions = getActions("bambulab", "bambulab:printer:as8af03m38")
    if(actions !==null){
        // Refresh all channels
        actions.refreshChannels()
        actions.sendCommand("Pushing:1:1")
    }
end

# refreshChannels

Reports the complete status of the printer. This is unnecessary for the X1 series since it already transmits the full object each time. However, the P1 series only sends the values that have been updated compared to the previous report. As a rule of thumb, refrain from executing this command at intervals less than 5 minutes on the P1P, as it may cause lag due to its hardware limitations.

# sendCommand

The sendCommand method expects a string command in the format:

CommandType:Parameter1:Parameter2:...

# Possible Commands

Command Type Parameters Description
Pushing version(int),pushTarget(int) (optional) Sends a push command.
Print START / STOP / PAUSE Controls the print job.
ChangeFilament target(int),currentTemperature(int)),targetTemperature(int) Changes filament using AMS.
AmsUserSetting amsId(int),startupReadOption(boolean),trayReadOption(boolean) Sets AMS user settings.
AmsFilamentSetting amsId(int),trayId(int),trayInfoIdx(string),trayColor(string),nozzleTempMin(int),nozzleTempMax(int),trayType(string) Configures filament settings.
AmsControl RESUME / RESET / PAUSE Sends an AMS control command.
PrintSpeed SILENT / STANDARD / SPORT / LUDICROUS Adjusts print speed.
GCodeFile filename(string) Loads a G-code file.
GCodeLine userId(string)\nlines(string...) Sends multiple G-code lines. Lines are enter (\n) separated
LedControl (CHAMBER_LIGHT / WORK_LIGHT),(ON / OFF / FLASHING),ledOnTime(int)?,ledOffTime(int)?,loopTimes(int)?,intervalTime(int)? Controls LED lighting.
System GET_ACCESS_CODE Executes a system command.
IpCamRecord enable(boolean) Starts or stops IP camera recording.
Info GET_VERSION Sends a info command.
IpCamTimelaps enable(boolean) Enables or disables timelapse recording.
XCamControl (FIRST_LAYER_INSPECTOR / SPAGHETTI_DETECTOR),control(boolean),printHalt(boolean) Controls XCam settings.
Raw topic,raw-message Allows to send raw message to MQTT. Please add %sequence_id% in your message to put current ID.
Caught a mistake or want to contribute to the documentation? Edit this page on GitHub (opens new window)

← Belkin Wemo →