Enhance Your 3D Printing Experience: A Dedicated Status Display for Bambu Labs Printers

Monitoring your Bambu Labs 3D printer typically involves using its built-in screen or mobile app. However, for those who want a standalone, always-on display positioned away from the printer, a maker named [Keralots] has created a custom solution. This project uses affordable components to build a real-time dashboard that shows essential printer metrics at a glance, with options for auditory alerts. Below are common questions about this build and how it works.

What is the purpose of this status display project?

This project aims to provide a dedicated, secondary display for Bambu Labs printers so you can monitor vital stats without relying on the printer's onboard interface or smartphone apps. It's especially useful if your printer is located in a garage or workshop away from your main workspace. The display shows real-time data like temperatures, progress, and other key parameters using arc gauges for quick readability. It also supports buzzer notifications for print events, making it easier to stay informed without constantly checking a screen.

What hardware components are used?

The build is centered around an ESP32-S3 Super Mini microcontroller paired with a 1.54-inch TFT display that has a resolution of 240×240 pixels. This compact combination keeps the project small and energy efficient. The ESP32 handles Wi-Fi connectivity and data processing, while the display shows the dashboard. Optionally, a buzzer can be added for sound alerts. No other specialized tools are required, making it a relatively simple weekend project for hobbyists familiar with soldering and basic electronics.

How does the display communicate with the printer?

The display communicates with Bambu Labs printers using MQTT over TLS (secure messaging protocol). It retrieves real-time status data from the printer and updates the dashboard continuously. For cloud-connected printers, you need a Bambu Cloud access token to authenticate. Alternatively, some models support LAN Direct connections, which require enabling Developer Mode in the printer settings. This flexibility allows the project to work with most current Bambu Labs printers, though compatibility may vary based on firmware versions.

What information does the dashboard show?

The dashboard presents critical printer parameters using arc gauges for intuitive, at-a-glance monitoring. Typical metrics include nozzle temperature, bed temperature, print progress (percentage), and remaining time. Additional live stats such as print speed, fan speed, and filament usage are also displayed. The layout is designed to be clearer and more quickly parseable than the official app's interface, making it ideal for users who want to spot issues without digging through menus. All data updates in real time via the MQTT feed.

Can the display provide notifications or alerts?

Yes, the project includes support for a buzzer that can produce auditory alerts for various printer events. For example, you can set it to beep when a print finishes, when temperatures reach a threshold, or if an error occurs. This feature is particularly useful if you are in another room or focused on other tasks. The buzzer is optional and can be added during assembly. The firmware likely allows customization of which events trigger sounds, giving you control over your notification preferences.

Which Bambu Labs printers are compatible?

This display works with almost any Bambu Labs printer as long as it supports MQTT connectivity. Printers connected via Bambu Cloud require a valid cloud access token. For local-only setups, models that support LAN Direct mode can be used after enabling Developer Mode on the printer. This includes popular models like the X1 Carbon, P1S, and A1 series. However, because printer firmware changes over time, you should verify that your specific model and firmware version are compatible before building the system.

How does this display compare to the official Bambu Handy app or printer screen?

The main advantage is dedicated, always-on visibility without needing to open an app or walk to the printer. The arc gauge layout presents key numbers in a format that’s easier to parse quickly than the official software's menu-driven interface. While the app provides more detailed controls, this display excels at passive monitoring. It also offers buzzer alerts, which the official app does not natively integrate with hardware sound. However, it lacks interactive features like start or pause prints, so it’s a supplementary tool rather than a replacement.