Model: Manta E3EZ + CB1 eMMC Control Board Kit
Brand: BIGTREETECH
This manual provides comprehensive instructions for the installation, operation, and maintenance of the BIGTREETECH Manta E3EZ + CB1 eMMC Control Board Kit. This kit is designed to enhance the performance of Ender-3 V2, Ender-3 Pro, Ender-3, and Voron 3D Printers, particularly for users looking to run Klipper firmware.
The Manta E3EZ control board features an ARM Cortex-M0+ series STM32G0B1RE master chip, offering robust performance and compatibility. Paired with the CB1 eMMC core control board, it provides a stable and efficient solution for advanced 3D printing applications.
The image below displays the BIGTREETECH Manta E3EZ control board and the CB1 eMMC core control board, highlighting their compact design and integrated nature.

Figure 3.1: BIGTREETECH Manta E3EZ and CB1 eMMC Control Board Kit.
The Manta E3EZ board is powered by a 32-bit, 64 MHz ARM Cortex-M0+ series STM32G0B1RE MCU. This powerful microcontroller ensures smooth and efficient operation for your 3D printer. It supports both Marlin and Klipper firmware, offering flexibility based on user preference.

Figure 3.2: Detail of the 32-bit MCU on the Manta E3EZ board.
The board features 5 mistake-proof EZ Driver Slots, simplifying driver installation. These slots allow for easy selection between SPI and UART in firmware without the need for jumpers, reducing the risk of incorrect insertion.

Figure 3.3: EZ Driver Slots for simplified driver installation.
The Manta E3EZ board offers extensive connectivity options to support various 3D printer accessories and configurations. The diagrams below illustrate the rich array of ports and their functions, including motor drivers, fan headers, endstops, and communication interfaces.

Figure 3.4: Rich Connectivity Overview.

Figure 3.5: Detailed Interface Diagram with port labels.
The CB1 eMMC module significantly enhances the kit's capabilities with its high-speed Samsung eMMC 5.1 technology, offering fast read/write speeds and stable storage. It also features a powerful quad-core processor and ample memory for complex tasks.

Figure 3.6: CB1 eMMC Module Specifications.
The Manta E3EZ board is designed to work seamlessly with other Manta series motherboards, and the CB1 eMMC offers an easy upgrade path from previous versions, providing improved data storage and reliability.

Figure 3.7: Compatibility with Manta Series Motherboards.

Figure 3.8: CB1 eMMC Heat Sink Compatibility.

Figure 3.9: Upgrading from CB1 V2.2 to CB1 eMMC.
For Klipper users, the CB1 eMMC acts as the host for the Klipper firmware. You will typically interact with Klipper via a web interface (e.g., Mainsail or Fluidd) accessible from your computer or a network device.
If you choose to use Marlin firmware, operation will be similar to other Marlin-based mainboards, typically through an LCD screen or a host software like Pronterface or OctoPrint.
For a visual guide on the BIGTREETECH Manta E3EZ MotherBoard and its support for Klipper with CB1, please watch the official product video below. This video provides an overview of the board's features and capabilities.
Video 5.1: BIGTREETECH Manta E3EZ MotherBoard Support Klipper with CB1. This video demonstrates the key features and functionality of the Manta E3EZ board in conjunction with the CB1 module, highlighting its use with Klipper firmware.
| Issue | Possible Cause | Solution |
|---|---|---|
| Board not powering on | Incorrect wiring, faulty power supply, short circuit. | Double-check all power connections. Test power supply voltage. Inspect for visible damage or short circuits. |
| Motors not moving or erratic movement | Incorrect stepper driver installation, wrong motor wiring, misconfigured firmware. | Ensure stepper drivers are correctly inserted and configured (SPI/UART). Verify motor wiring matches the board's pinout. Check firmware motor definitions. |
| Temperature readings incorrect | Faulty thermistor, incorrect thermistor type in firmware. | Check thermistor wiring. Verify the thermistor type configured in your firmware matches your physical thermistor. |
| CB1 eMMC not detected/network issues | Loose BTB connection, incorrect network settings, faulty eMMC module. | Ensure CB1 is firmly seated. Verify network cable connection or Wi-Fi credentials. Re-flash CB1 image if necessary. |
If you encounter issues not listed here, please refer to the official BIGTREETECH documentation or community forums for further assistance.
| Specification | Detail |
|---|---|
| Brand | BIGTREETECH |
| Model | Manta E3EZ + CB1 eMMC Control Board Kit |
| Main Chip | ARM Cortex-M0+ series STM32G0B1RE (32-bit, 64MHz) |
| Max Motor Voltage | 56 Volts |
| CB1 Processor | Quad-core 64-bit ARM Cortex-A53 @ 1.5GHz |
| CB1 Memory | 1GB DDR3 |
| CB1 Storage | 32GB eMMC 5.1 (300MB/s Read, 200MB/s Write) |
| Network Interface | 100M Ethernet, Wi-Fi support |
| Color | Black |
| ASIN | B0C6MBP56R |
BIGTREETECH products typically come with a manufacturer's warranty. Please refer to the official BIGTREETECH website or your purchase documentation for specific warranty terms and conditions.
For technical support, firmware downloads, and additional resources, please visit the official BIGTREETECH website or their GitHub repository:
Community forums and online resources can also be valuable for troubleshooting and sharing experiences with other users.
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