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Introduction to the HMS

The health Management System (HMS) is resposible for the monitoring and alerting of the printing system which includes:

  • Hardware connections (How the system is connected)
  • Issues with the physical hardware (Fans, Hotend, Heatbed)
  • Motion system (Belts, rods)
  • Printing issues picked up by AI (First Layer Scanning and Spagetti Detection)

If an abnormal status is detected the HMS will alert the user to the issue and if required, provide a QR Code to further information from the Bambu Labs Wiki

HMS Code Definition

Below is the HMS Numbering convention

image.pngModule ID

Module ID Module Abbreviation Module Name
03 MC Motion Controller
05 AP Main Board
07 AMS Automated Material System
08 TH Tool Head
0C XCAM Bambu Micro Lidar
10 Studio Studio
11 APP APP

Module Number

The number for the module, Normally this will be a zero in most cases, but if could be a different number if there are multiple modules connected, like two AMS

Part ID

The part ID for the Module.

Part Number

The number of the part in the specifig module

Alert Level

Level Definition
0000 Invalid alert
0001 Error (Printing task stopped,  alert must be eliminated before starting a task)
0002 Warning (Printing task pause, alert must be eliminated before resuming the task)
0003 Info (Information only )

Error Code ID

The ID of the HMS Alert

HMS Workflow

The HMS is a system of sensors monitored by the central management unit. The below is a simple diagram to show how it works.

Error Code

For each alert the HMS dispays a unique error code for it. For example, if there is an error with the heatbed temperature the code is 03000100010001. This error code can be searched on the Bambu Lab WIKI

Notification

When the HMS dectects an abnormality the printer takes actions based on the severity of the alarm; Warning status messages will show in the  What is it called now. Whilst fatal errors will provide a popup message window on the printer's display and request for you to select an action.

The HMS will also send a notification message to Bambu Handy and Bambu Studio if connected to the printer

If the HMS detects that something is wrong in the system, it will pop up a error message along with the error code on the screen. The notification method for each message is different, based on the level of severity. For fatal errors, it will pop up a message window on the machine's display and request user confirmation. For warning statuses, the HMS will just show a notification message on the right of the display screen. The HMS will also send a notification message to the mobile app.

Limitations

There are also some limitations for the HMS, for example:

  • The HMS can not cover all the error/warning statuses due to the fact that it lacks some evaluation methods.
  • Some errors can not be identified directly such as lost steps.
  • The root cause for some errors is very complicated and the HMS can not identify the real reason for them. For example, a clog may be caused by improper print settings or improper operation. The HMS may only detect that an error occurred but won't know the real reason.

Using the HMS

Users can utilize the notifications of the HMS to know the status of the whole system including some mechanical and hardware errors, or why the printing has failed. There is a wiki page that gives a detailed description and a how-to for each error code which can be found here. While reporting errors, the HMS also gives a QR code which leads to the wiki page. So when seeing a HMS message, users should read the related wiki page carefully and follow the diagnostics steps to identify what the real problem is.

If you can not resolve the problem yourself, you  can ask for after sale service from Bambu Lab.

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