HA Automation to set the speed

[Micha-Btz]

Hey,

I have created an automation, based on the layers of printing to set the speed. So when the layer get over zero 0, speed gets set to silent, if the layer is over 10 it get set to normal or fast or so. The layer change is registered and the automation is triggerd, but does not change the printing speed.
trace automation.bambu_schichten 2025-10-29T15_37_53.875711+00_00.json

The automation has worked with 2.1.x and does not with 2.2.x. Sadly I don't know the latest version.
Any ideas who I can find the problem?

`
alias: Bambu_Schichten
description: ""
triggers:

• trigger: numeric_state
  entity_id:
  • sensor.aktuelle_schicht
    above: 0
    id: "1"
• trigger: numeric_state
  entity_id:
  • sensor.aktuelle_schicht
    above: 10
    id: "20"
• trigger: numeric_state
  entity_id:
  • sensor.aktuelle_schicht
    above: 35
    id: "35"
    conditions: []
    actions:
• if:
  • condition: trigger
    id:
    • "1"
      then:
  • device_id: dd3b01bbe8670e6cf10a217840757a43
    domain: select
    entity_id: 4387d9bf94ed317756d726c5d7bb6317
    type: select_option
    option: silent
    alias: speed zu leise
    alias: Leise
• alias: Standard
  if:
  • condition: trigger
    id:
    • "20"
      then:
  • alias: speed zu standard
    device_id: dd3b01bbe8670e6cf10a217840757a43
    domain: select
    entity_id: 4387d9bf94ed317756d726c5d7bb6317
    type: select_option
    option: standard
• alias: Sport
  if:
  • condition: trigger
    id:
    • "35"
      then:
  • alias: speed zu leise
    device_id: dd3b01bbe8670e6cf10a217840757a43
    domain: select
    entity_id: 4387d9bf94ed317756d726c5d7bb6317
    type: select_option
    option: sport
    enabled: false
    mode: single

`
The file includes the automation trace. Printer is a Bambulab A1 with AMS lite.

thanks Micha

[Micha-Btz]

I have done some testing, but I can't switch the speed per HA itself. None of the settings on the device page are working. I will try a complete remove and new configuration.

[AdrianGarside]

" but I can't switch the speed per HA itself. " - you're probably falling foul of bambu's anti-competitor lock down of the printers. Their first attempt was for the P1 series to break the 3rd party lcd screen addon - a cloud connected printer will fail all local mqtt commands. When that wasn't sufficient to fully break that screen they added mqtt encryption and the only way to turn that off an allow this integration to control the printer is to switch it to developer lan mode.

[Micha-Btz]

hey,

my bambulab A1 is in LAN mode. I also remove it complete and readd it, I would be found as X1C and setting speed is not possible.

I have catched an error
Dieser Fehler stammt von einer benutzerdefinierten Integration

Logger: custom_components.bambu_lab.pybambu
Quelle: custom_components/bambu_lab/pybambu/models.py:2896
Integration: Bambu Lab (Dokumentation, Probleme)
Erstmals aufgetreten: 16:38:32 (5 Vorkommnisse)
Zuletzt protokolliert: 18:00:26
HMS ERRORS: {'Count': 1, '1-Code': 'HMS_0500_0500_0001_0007', '1-Error': 'Die Überprüfung des MQTT-Befehls ist fehlgeschlagen. Bitte aktualisieren Sie Studio (einschließlich des Netzwerk-Plugins) oder Handy auf die neueste Version, starten Sie die Software neu und versuchen Sie es erneut.', '1-Wiki': 'https://wiki.bambulab.com/en/x1/troubleshooting/hmscode/0500_0500_0001_0007', '1-Severity': 'fatal'}

[AdrianGarside]

“ . I also remove it complete and readd it, I would be found as X1C and setting speed is not possible.”

That should be fixed in the latest version. What version are you running?

[AdrianGarside]

You need to be in developer lan mode to get past Bambus block. Lan mode alone is not sufficient.

[Micha-Btz]

You are right, I need to enable the developer options in LAN mode, seems so be that this option comes with a newer firmware, so I miss enable it. Sorry :-(