This guide provides steps on how to diagnose and fix camera issues on 3D printers connected to 3DPrinterOS. It includes specific steps for Bambu Lab printers (X1, H2, P1, P2, A1) and general troubleshooting for all other printers.
1. Printer Type Differences
Not all printers require network port configuration for camera streaming.
Most printers: No specific ports need to be open for the camera to function.
Bambu Lab printers: Require specific ports and configuration settings.
2. Bambu Lab Printers
Required Port Configuration
Printer Model | Port | Description |
X1/H2/P2 Series | 322 | Must be open for live camera stream |
P1 & A1 Series | 6000 | Must be open for live camera stream |
If these ports are blocked, the camera will not work through 3DPrinterOS.
Settings to Enable
X1/H2/P2 Series: Ensure LAN Mode Live View is enabled on the printer itself.
This setting allows the camera stream to be accessed by 3DPrinterOS through the local network.
Client Version
For Bambu Lab printers, it is recommended to use the Beta or Testing version of the 3DPrinterOS Client.
These versions contain the latest bug fixes and compatibility improvements.
If you experience issues, confirm that you are running the Beta/Testing Client before further troubleshooting.
Quick Checklist for Bambu Printers
Verify the Beta or Testing Client is installed.
Confirm the correct port (322 for X1/H2/P2 or 6000 for A1/P1) is open on the network.
For X1/H2/P2 printers, ensure LAN Mode Live View is enabled.
Restart both the printer and the 3DPrinterOS Client.
3. Other Printers (Non-Bambu)
Power and Hardware Checks
Check Power Supply
If the printer is connected to a Raspberry Pi, ensure the Pi has sufficient power.
An underpowered Pi can cause the camera to fail to initialize.
Use a high-quality power adapter.
Limit Connected Cameras
Having too many cameras connected to the same host device can overload USB/Network bandwidth or CPU.
Disconnect unused cameras and test with one active camera.
Refer to this guide for the recommended number of cameras per host:
How many 3D printers can be connected to one device
Try a Different Camera
If the current camera does not show up or fails to stream, try another USB webcam to confirm if the issue is hardware-related.
4. Software and Settings
All cameras connected to the host device will appear in the printer settings. If multiple cameras are listed, select the correct one and click “Save changes.”
Reset the Camera Module
If the camera appears unresponsive or doesn’t show up in the dashboard:
Open Printer Settings in 3DPrinterOS.
Click “Reset Module”.
Wait 10–15 seconds for the module to reload.
Check if the camera feed appears.
Beta/Testing Version
Users may try the Beta or Testing 3DPrinterOS Client, even for non-Bambu printers.
5. Diagnostic Sequence Summary
Step | Checkpoint | Applies To |
1 | Confirm Beta/Testing Client Installed | All Printers |
2 | Check Required Ports | (322 for X1/H2/P2 or 6000 for A1/P1) |
3 | Enable LAN Mode Live View | Bambu X1, H2, P2 |
4 | Verify Power Supply | All Printers |
5 | Reduce USB Device Load | All Printers |
6 | Reset Module in 3DPrinterOS | All Printers |
7 | Test Another Camera | All Printers |