--- product_id: 455900479 title: "- BIGTREETECH EBB42 CAN Bus with MAX31865 Adapter Board Hot End PCB Board Filament Break Blockage Detection for 42 Stepper Motor Extruder Nozzle Head Tool for Blv Ender 3 for Klipper Support PT1000" brand: "biqu" price: "Β₯9184" currency: JPY in_stock: true reviews_count: 8 url: https://www.desertcart.jp/products/455900479-bigtreetech-ebb42-can-bus-with-max31865-adapter-board-hot-end store_origin: JP region: Japan --- # Dual CAN/USB communication with 120Ξ© termination 42-step motor precision Onboard MAX31865 for PT100/PT1000 temp sensing - BIGTREETECH EBB42 CAN Bus with MAX31865 Adapter Board Hot End PCB Board Filament Break Blockage Detection for 42 Stepper Motor Extruder Nozzle Head Tool for Blv Ender 3 for Klipper Support PT1000 **Brand:** biqu **Price:** Β₯9184 **Availability:** βœ… In Stock ## Summary > πŸ”₯ Upgrade your Ender 3 with smart precision and fail-safe power! ## Quick Answers - **What is this?** - BIGTREETECH EBB42 CAN Bus with MAX31865 Adapter Board Hot End PCB Board Filament Break Blockage Detection for 42 Stepper Motor Extruder Nozzle Head Tool for Blv Ender 3 for Klipper Support PT1000 by biqu - **How much does it cost?** Β₯9184 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/455900479-bigtreetech-ebb42-can-bus-with-max31865-adapter-board-hot-end) ## Best For - biqu enthusiasts ## Why This Product - Trusted biqu brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Robust Safety Design:** Enhanced ESD protection and isolated power circuits prevent damage from electrical faults and overheating. - β€’ **Seamless Connectivity:** Flexible CAN bus or USB communication simplifies wiring and firmware updates with onboard BOOT and RESET buttons. - β€’ **Precision Motion Control:** Supports 36/42-step extruder motors for ultra-smooth filament feed and superior print quality. - β€’ **Expandable & DIY Friendly:** Reserved I2C interface and RGB ports empower custom filament breakage detection and lighting mods. - β€’ **Advanced Thermal Monitoring:** Integrated MAX31865 chip enables accurate PT100/PT1000 temperature sensing for reliable hotend performance. ## Overview The BIGTREETECH EBB42 CAN Bus Hot End PCB is a cutting-edge extruder adapter board designed for 42-stepper motors, featuring onboard MAX31865 for precise PT100/PT1000 temperature sensing. It supports both CAN bus and USB communication, simplifying wiring and firmware updates. With enhanced safety circuits including ESD protection and isolated power, plus reserved expansion ports for DIY filament detection and RGB lighting, it’s the ultimate smart upgrade for BLV Ender 3 and Klipper users seeking reliability and customization. ## Description BIGTREETECH EBB42 CAN Bus with MAX31865 Adapter Board Hot End PCB Board Filament Break Blockage Detection for 42 Stepper Motor Extruder Nozzle Head Tool for Blv Ender 3 for Klipper Support PT1000 ## Features - Smart Upgrade: Onboard MAX31865, support 2-wire/4-wire PT100/PT1000 selection, support CAN or USB communication, among which CAN terminal resistance 120R can be selected by jumper cap, and reserved CAN expansion interface, reserved RGB interface , to meet the lighting needs - Easy to Use: It is a 36-step (42-step) motor extruder nozzle adapter board, which can communicate through USB or CAN, which greatly simplifies wiring. BOOT and RESET buttons are reserved on the motherboard, users can enter DFU mode through USB to update the firmware - Superior Security: The EBB series has been optimized in multiple dimensions in terms of security. USB power-on is selected by jumper cap, which effectively isolates the DC-DC and USB 5V of the main board, and increases the protection circuit of the thermistor part to avoid the burning of the main control chip due to the leakage of the heating rod. The USB port adds an ESD protection chip to prevent the main control from being damaged. Electrostatic breakdown of the USB port - Rich Expansion Functions: I2C interface is reserved. This port can also be used for material breakage, material blocking detection, or DIY operations for other functions. The factory is equipped with terminals, female reeds, double-way studs and screws for Meet the DIY needs of customers - About Product Question: Q: When updating firmware, it may be a risk that the heater sticks keep heating up A: please pay attention to disconnect the main power VIN of the hotend when using the DFU of Type-C port to update the firmware, or ensure that the firmware update is completed soon and goto the normal working mode. Never keep MCU in DFU mode for a long time when the main power supply and hotend are connected ## Images ![- BIGTREETECH EBB42 CAN Bus with MAX31865 Adapter Board Hot End PCB Board Filament Break Blockage Detection for 42 Stepper Motor Extruder Nozzle Head Tool for Blv Ender 3 for Klipper Support PT1000 - Image 1](https://m.media-amazon.com/images/I/61ecALsllzL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Awesome and compact. *by F***A on June 14, 2025* Great little board. Used on a Sovol sv08 to convert to Can communication. Connectors used on this board are 2.5 pitch which makes a whole lot of difference with ease when comparing to the 1.5 pitch on the Sovol stock board. Easier to crimp in case you pull out a wire when disconnecting a connector and way easier to crimp. Simple installation when following the manual on the btt GitHub page. Though, having some experience connecting to your printer host via ssh and using the Linux command line helps. The heater terminals are also larger than the ebb36 board which also makes it easier to install the heater wires and using ferrule connectors. Using the board to connect an eddy dual, x endstop, filament sensor, extruder fan, two part cooling fans spit into one connection, neopixel leds, heater, and thermistor. Still have a few pins to use if something comes to mind. Good buy. ### ⭐⭐⭐⭐⭐ Great Product *by A***R on April 2, 2025* Removed artifact in on my prints and made my machine run quieter. Now it’s the fans I hear instead of the frame humming. Was easy to configure and setup. ### ⭐⭐⭐⭐⭐ Big Tree ADXL *by C***L on February 28, 2025* Item arrived on time in excellent condition. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/455900479-bigtreetech-ebb42-can-bus-with-max31865-adapter-board-hot-end](https://www.desertcart.jp/products/455900479-bigtreetech-ebb42-can-bus-with-max31865-adapter-board-hot-end) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-05-18*