WGB V3 Motherboard PCB for BoxTurtle AMS MMU 🖨️

Multi-Material Control Board for DIY Voron Klipper 3D Printers

Overview

The WGB V3 Motherboard is a purpose-built control board designed to power multi-material/multi-color systems (MMUs) for 3D printing. Featuring an STM32F446 MCU and a comprehensive set of interfaces, it supports BoxTurtle, Quattro-Box, and ERCF systems. Factory-produced with SMT assembly for reliable, consistent quality.

Key Features⚙️ STM32F446 MCU

Powerful main chip driving smooth multi-material control performance.

🔌 4x TMC2209 Motor Slots

UART mode with level conversion for signal isolation between motors and main chip.

🔧 4x 5V DC Motor Drivers

Forward/reverse support with En pin and sleep mode for brushed motors.

💡 Extensive Connectivity

2x RGB LED connectors with servo support, 16x microswitch connectors, 2x fan connectors, I2C interface, USB and CAN support.

SpecificationsMain ChipSTM32F446 MCUMotor Slots4x TMC2209 (UART mode)DC Motor Drivers4x 5V brushed, forward/reverse, sleep modeLED Connectors2x RGB with servo supportMicroswitch Connectors16x for eject buttons, encodersFan Connectors2x 5V/24V with speed control & voltage jumperSensor InterfaceI2C for temperature and humidityConnectivityUSB and CAN (MX3.0 2x2p foolproof)CompatibilityBoxTurtle, Quattro-Box, ERCFMountingCompatible with BoxTurtle AFC-Lite hole patternProduct ImagesFAQIs this compatible with AFC-Lite?

This board shares the same mounting hole pattern as the BoxTurtle AFC-Lite board, but it is a distinct product (WGB V3), not an AFC-Lite board itself.

What systems does this support?

BoxTurtle, Quattro-Box, ERCF, and other DIY multi-material systems using Klipper firmware.

What's included in the package?

The WGB V3 motherboard PCB as shown in the package photos. Please refer to the product images for full contents.