Moonraker (Klipper) automation for Home Assistant

It provides a RESTful sensor for Moonraker states, RESTful commands, some automation for safety shutdown, emergency shutdown, notification when finished, control and automation that does not flood the Home Assistant logs when Moonraker is offline.

You can also use the HACS-Integration "Moonraker" from marcolivierarsenault: https://github.com/marcolivierarsenault/moonraker-home-assistant

What do you need?

• Home Assistant
• Device with Klipper (in my case RPi with Ratrig OS)
• A controlable switch (power plug) for the printer
• Optional: A Zigbee button or similar for control

How to use?

In your Home Assistant configuration.yaml you need to at following lines:

homeassistant:
  packages: !include_dir_named packages

and create a folder named packages and place the moonraker.yaml into it. Or your download and copy it from github.

It must be look like this:

config/
├─ configuration.yaml
├─ packages/
│ ├─ moonraker.yaml

In moonraker.yaml you need to change (CTRL+F and replace) YOUR_IP to the IP from your printer. Done.

---

To use the automation you need a power plug for the printer. In my case I use a BlitzWolf BW-SHP6 (16A) called switch.3dprinter.

---

To get notified, you need to change the notify.devices service to your device.

Optional

Camera

Best way is to use the MJPEG Intergration from Home Assistant.

• MJPEG-URL: http://YOUR_IP/webcam/?action=stream
• Still Image URL: http://YOUR_IP/webcam/?action=snapshot

Shortcut button

I use a TRADFRI shortcut button to control the printer when I am standing in front. I can turn on and of the printer or do a emergency stop.

alias: 3D Printer - Toggle [Shortcut button]
description: ""
trigger:
  - platform: state
    entity_id:
      - sensor.3dprinter_button
    from: "on"
condition: []
action:
  - choose:
      - conditions:
          - condition: device
            type: is_off
            entity_id: switch.3dprinter
            domain: switch
        sequence:
          - service: switch.turn_on
            data: {}
            target:
              entity_id:
                - switch.3dprinter
      - conditions:
          - condition: and
            conditions:
              - condition: not
                conditions:
                  - condition: template
                    value_template: "{{ is_state('sensor.moonraker_status', 'printing') }}"
              - condition: device
                type: is_on
                entity_id: switch.3dprinter
                domain: switch
        sequence:
          - service: script.safe_shutdown
            data: {}
      - conditions:
          - condition: template
            value_template: "{{ is_state('sensor.moonraker_status', 'printing') }}"
        sequence:
          - service: rest_command.moonraker_emergency_stop
            data: {}
    default: []
mode: single

Notification when PAUSED or ERROR

alias: 3D Drucker - Benachrichtigung [Error, Paused]
description: ""
trigger:
  - platform: state
    entity_id:
      - sensor.moonraker_status
    for:
      hours: 0
      minutes: 0
      seconds: 0
    to:
      - error
      - paused
condition: []
action:
  - service: notify.devices
    data:
      message: '{{ (states("sensor.moonraker_state")|string)|upper }}'
      title: 3D Printer
  - if:
      - condition: state
        entity_id: person.admin
        state: home
    then:
      - service: tts.google_translate_say
        data:
          entity_id: media_player.nestmini
          message: 3D Printer {{ (states("sensor.moonraker_state")|string)|upper }}
mode: single