Bigtreetech Kraken V1.1

Engineered for high-performance 3D printing, the Bigtreetech Kraken V1.1 integrates advanced motion control with robust connectivity. Designed around the powerful STM32H743VIT6 MCU, it delivers 480 MHz processing speed and supports up to eight stepper drivers, enabling complex multi-axis setups and tool-changing systems.

🔌 Connectivity and Expansion

The board features native support for CAN bus, USB, SD card, and Ethernet, ensuring flexible integration with Klipper and other firmware environments. Moreover, it includes multiple UART and I2C interfaces for seamless peripheral expansion.

⚙️ Driver Compatibility and Power Management

Compatible with TMC series drivers in both SPI and UART modes, the Kraken V1.1 supports sensor less homing and stealthChop for silent operation. Its onboard power management system includes independent stepper voltage regulation and multiple fan outputs, allowing precise thermal control.

🧩 Modular Design and Safety Features

Thanks to its modular layout, the board simplifies wiring and maintenance. It also incorporates thermal runaway protection, overcurrent safeguards, and voltage monitoring—ensuring stable and secure operation under demanding conditions.

📈 Optimized for Klipper

Built with Klipper in mind, the Kraken V1.1 accelerates real-time performance and supports advanced features like input shaping and pressure advance. As a result, users benefit from smoother prints and reduced mechanical resonance.

📋 Technical Specifications

• MCU: ARM Cortex-M7 STM32H723ZGT6 550MHz
• Driver Input Voltage: HV (24-60V)
• Motherboard Input Voltage: DCIN = DC12V or DC24V
• Heated Bed Input Voltage: BED IN = DC12V or DC24V
• Logic Voltage: DC3.3V
• Heating Interface: Heated Bed (HB), Heater Cartridge (HE0, HE1, HE2, HE3)
• Max Heated Bed Output Current: 10A, peak 11A
• Max Heater Cartridge Output Current: 6A, peak 6.5A
• Fan Interfaces: 6x 2-pin PWM Fans (FAN0, FAN1, FAN2, FAN3, FAN4, FAN5), 2x 4-pin PWM Fans (FAN6, FAN7), 5x Always-On Fan, PWM Fans Voltage (5V, 12V, 24V) Selectable
• Max Fan Output Current: 1A, peak 1.5A
• Total Current for Heater Cartridge + Fans: Less than 14A
• Motherboard Max 5V Output Current: 5A (peak 6A)
• Motherboard Max 12V Output Current: 5A (peak 6A)
• Expansion Interfaces: Probe (Servos, Probe), Servo, Filament Sensor, PS-ON, I²C, RGBx2, SPI, SBC (UART), EXP1+EXP2, CANx2, PT100/PT1000x2, USB-A 5V Power, Endstop Portx8, etc.
• Motor Drivers: Onboard TMC2160, support 24-60V, Max 4.7A driving current for S1-S4(Rsense=50mR), Max 3A for S5-S8(Rsense=75mR)
• Driver Modes: SPI
• Motor Interfaces: S1, S2, S3, S4, S5, S6, S7, S8
• Temp Sensor Interfaces: 5x 100K NTC, 2x MAX31865
• Display: LCD
• PC Communication: USB Type-C
• Supported Kinematics: Cartesian, Delta, Kossel, Ultimaker, CoreXY
• Recommended Slicer/Console: Cura, Simplify3D, Pronterface, Repetier-host, Makerware
• Dimensions 200 x 113mm

More info here