BIGTREETECH Octopus V1.1 / Octopus Pro is a high‑performance 3D printer motherboard with 8 stepper drivers for up to 8 axes. It features CAN Bus, SPI, I2C, and Raspberry Pi integration with USB‑C, 4 heater outputs, extensive fan control, RGB LED, Wi‑Fi, and BLTouch compatibility. Onboard MAX31865 enables PT100/PT1000 sensors. With 12–60V input and HV drive up to MAX8, it’s ideal for multi‑color printers, tool changers, and laser modules.
- 8 stepper drivers for up to 8 axes
- CAN Bus, SPI, I2C interfaces plus Raspberry Pi integration with USB-C
- USB-C connectivity for updates and host communication
- 4 heater outputs and extensive fan control
- RGB LED, Wi-Fi (ESP8266), and BLTouch auto bed leveling compatibility
- Onboard MAX31865 for PT100/PT1000 sensors (weld-free switching)
- 12–60V motor supply with HV drive up to MAX8
- BIGTREETECH Octopus V1.1 and BIGTREETECH Octopus Pro (F446/H723) are high-performance 3D printer motherboards designed for complex, expansion-heavy builds.
- With 8 stepper driver sockets, these boards can control up to 8 axes, making them ideal in India for multi-motor systems, multi-colour printing, tool changers, and multi-purpose machines that swap between 3D printing and add-ons like laser engraving or laser cutting modules.
- Both boards focus on expandability and modern connectivity. They support key interfaces such as CAN Bus, SPI, I2C, and a Raspberry Pi interface for controller-host integration, plus USB‑C for convenient connection and updates.
- You also get multiple fan headers (controllable and always-on), RGB LED support, BLTouch and other auto bed leveling compatibility, and 4 cartridge heater outputs—useful for multi-hotend systems or specialized heaters in tool-changing setups.
- It also adds onboard MAX31865, enabling cleaner integration of PT100/PT1000 temperature sensors via weld-free switching—useful for higher temperature or more precise thermal measurement setups. This makes the Octopus Pro a strong pick for high-power and high-precision builds.
Specifications
- MCU options: STM32F446ZET6 / STM32H723ZE
- Frequency: 180MHz / 168MHz
- Flash: 512KB / 1MB
- SD protocol: SDIO
- CAN Bus: RJ11 CANBus interface
- Fuses: 3
- Limit switch + filament sensor inputs: 6 + 2
- HV drive: up to MAX8
- Motor input voltage: 12–60V (each optional)
- Drive input level: 5V
- Temperature inputs: NTC100K ×5 + onboard MAX31865 (PT100/PT1000 via weld-free switching)
- Protection: 5V short-circuit alarm (LED + buzzer)
Features
- 8 stepper driver support for advanced motion systems
- Multiple expansion interfaces: CAN/SPI/I2C + Raspberry Pi integration
- USB‑C connectivity for easier updates and communication
- 4 heater outputs and extensive fan control
- RGB, Wi‑Fi (ESP8266), and BLTouch compatibility
- Added power/safety and MAX31865 support on Octopus Pro
Applications
- Multi-colour printing and tool changer machines
- High-axis-count printers (multi-motor Z, complex kinematics)
- Multi-purpose machines with laser engraving/cutting modules
- Builds needing expansion via CAN Bus, SPI, I2C, and Raspberry Pi
- High-power builds needing higher motor voltage (especially Octopus Pro)
Package Include
- 1 piece of octopus motherboard V1.1 / Octopus Pro ( with F446 or H723 Chip ).