BIGTREETECH EBB42 CAN V1.2 Stepper Motor Driver Board
SKU: 3DDF-1645
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BIGTREETECH EBB42 CAN V1.2 Stepper Motor Driver Board

₹2,539.00 (Inclusive of all taxes)
Out of Stock

The BIGTREETECH EBB42 CAN V1.2 is a dedicated nozzle adapter board for 36mm or 42mm stepper motor extruders, significantly simplifying wiring with CAN Bus or USB communication. It features an onboard TMC2209 driver and ADXL345 accelerometer, enhancing precision and stability for Klipper-based 3D printers.

Features

  • Integrates seamlessly with Klipper expansion devices via CAN Bus for enhanced data transmission stability.
  • Features an onboard TMC2209 stepper motor driver specifically for the extruder.
  • Reduces wiring complexity and weight to the 3D printer’s tool head.
  • Equipped with an onboard ADXL345 accelerometer for resonance compensation.
  • Supports both 2-wire and 4-wire PT100/PT1000 thermistors with MAX31865.

Out of stock

Description

The BIGTREETECH BTT EBB42 CAN V1.2 Stepper Motor Driver is a specialized nozzle adapter board meticulously engineered for 36mm or 42mm stepper motor extruders. Developed by Shenzhen Big Tree Technology Co., Ltd., this board streamlines the integration of advanced extruder functionalities into your 3D printer setup. Its primary advantage lies in supporting communication via either USB or the robust CAN Bus protocol, which drastically simplifies tool head wiring by consolidating multiple connections into a single, reliable cable, thereby reducing both clutter and potential points of failure.

This efficient tool head PCB comes equipped with an integrated TMC2209 extruder motor driver, ensuring precise and quiet motor control for optimal filament extrusion. By offloading the extruder driver and other tool head electronics directly to the hotend assembly, the EBB42 CAN V1.2 significantly decreases the number of wires running back to the mainboard, contributing to a lighter tool head and potentially improved print kinematics. It also includes an onboard ADXL345 accelerometer, critical for Klipper firmware’s input shaper calibration to mitigate ringing artifacts.

Key Features

  • Reserved BOOT and RESET buttons enable easy firmware updates via DFU mode using USB.
  • Enhanced thermistor protection circuit prevents damage to the main control chip from heating rod leakage current.
  • Jumper-selectable thermistor pull-up resistor values support PT1000 (2.2K pull-up) for DIY convenience.
  • USB power isolation via jumper cap effectively separates the main control board DC-DC from USB 5V.
  • Reserved I2C interface allows for filament broken/clogged detection and supports other DIY expansions.
  • Added anti-flyback diodes on heating rod and fan ports protect MOS tubes from reverse voltage spikes.
  • Power interface features anti-reverse connection protection to prevent motherboard damage from incorrect wiring.
  • Onboard MAX31865 chip supports both 2-wire and 4-wire PT100/PT1000 thermistor configurations.
  • Supports robust CAN or USB communication, with a selectable 120R CAN terminal resistor and expansion interfaces.
  • USB port is equipped with an ESD protection chip, safeguarding the main control board from static electricity.
  • Includes all necessary terminals, female reeds, studs, and screws for immediate DIY assembly and integration.

Applications

  • Enabling Klipper expansion devices and features on 3D printers.
  • Upgrading or simplifying wiring for 36mm or 42mm stepper motor extruders.
  • Implementing input shaper calibration with Klipper via the onboard accelerometer.
  • Reducing tool head weight and improving cable management on 3D printers.

Technical Specifications

Item TypeStepper Motor Driver
Compatibility36mm/42mm stepper motor extruder, Klipper expansion
MaterialMetal, HQ Plastic
Input Voltage12-24 VDC
Logic VoltageDC 3.3V
DriverOnboard TMC2209
SensorADXL345
Input Current9A
Maximum Output Current5A
USB InterfaceType-C
ProcessorARM Cortex-M0 STM32F072C8T6 (48MHz)
ColorBlack PCB

Frequently Asked Questions

What is the primary benefit of the CAN Bus connection on the EBB42 V1.2?

The CAN Bus connection significantly simplifies wiring to the tool head by consolidating multiple data and power lines into a single cable. This reduces clutter, improves signal integrity over longer distances, and lowers the overall weight of the moving parts, enhancing print performance.

Which stepper motor drivers are integrated into the EBB42 CAN V1.2 board?

The EBB42 CAN V1.2 features an onboard TMC2209 stepper motor driver. This dedicated driver is specifically used for controlling the extruder motor, providing silent and precise motion, which is crucial for consistent filament flow and high-quality 3D prints.

What types of thermistors does the EBB42 CAN V1.2 support, and how are they configured?

The EBB42 CAN V1.2 supports both 2-wire and 4-wire PT100 or PT1000 thermistors, facilitated by the onboard MAX31865 chip. Users can also select thermistor pull-up resistor values via jumper wires to accommodate specific sensor requirements, enhancing versatility.

Can this board be powered via USB, and how is that controlled?

Yes, the EBB42 CAN V1.2 can be powered via USB. A dedicated jumper cap allows users to select whether USB provides power to the motherboard. This feature is useful for firmware updates or initial setup, while effectively isolating USB 5V from the DC-DC power supply.

What is the purpose of the onboard ADXL345 accelerometer?

The onboard ADXL345 accelerometer is crucial for implementing input shaper calibration, especially with Klipper firmware. It allows the printer to measure its own resonant frequencies, enabling the firmware to compensate for vibrations and significantly reduce artifacts like ringing or ghosting in prints.

Package Includes

  • 1 x BIGTREETECH EBB42 CAN V1.2
  • 1 x Accessories Set (As Shown in Image)

Additional Information

Weight 0.032 kg
Dimensions 4.5 × 4.5 cm

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