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BTT EBB42 Gen 2 is BIGTREETECH’s CAN-based toolhead control board designed for Klipper-powered 3D printers. It mounts on the toolhead to dramatically reduce cable clutter, enables high‑speed CAN communication, and provides robust power management for hotends, fans, thermistors, extruders, probes, LEDs, and sensors. The compact Gen 2 PCB is ultra‑lightweight, optimized for lightweight toolheads and CoreXY setups, and supports larger NEMA 17 extruders with higher current needs.

• CAN Bus communication with Klipper firmware
• Mounts on toolhead to reduce cable clutter and improve reliability
• Supports hotend heaters, fans, thermistors, extruders, probes, LEDs, and sensors
• Compact, ultra-lightweight PCB design for lightweight toolheads
• Gen 2 board with improved layout and thermal performance
• MCU: STM42G0 Series (Gen 2)
• Ideal for high-speed CoreXY and Klipper CAN-based printer setups
• Compatible with StealthBurner, Orbiter and lightweight toolheads