MMU2S Control Board with TMC2130 – Mainboard Only for Prusa i3 MK3 / MK3S

Product Overview

This MMU2S control board is designed specifically for the Prusa Multi Material Unit 2S (MMU2S) used with Prusa i3 MK3 / MK3S 3D printers.
The board integrates the TMC2130 stepper driver, providing stable and precise control for filament selection and multi-material operations.

⚠ Important Notice
This listing includes ONLY the MMU2S control board (mainboard).
It does NOT include the MMU2S mechanical unit, selector, motors, filament sensor, or any other accessories.

Key Features

• Designed for MMU2S Systems

  • Fully compatible with MMU2S firmware and wiring

• Built-in TMC2130 Driver

  • Smooth motor control

  • Accurate filament loading and unloading

• Supports Up to 5 Filaments (MMU2S System Required)

  • Multi-material capability depends on a complete MMU2S setup

• Reliable Replacement Mainboard

  • Ideal for repairing or replacing a damaged MMU2S control board

• Stable Communication with MK3 / MK3S

  • Ensures proper signal and power management

Function Description

When installed in a complete MMU2S system, the control board manages:

• Filament loading and unloading

• Selector motor positioning

• Communication between MMU2S and the printer mainboard

• Multi-material coordination via standard G-code workflow

Printing operation remains unchanged:

1. Slice the model

2. Export G-code

3. Load to SD card

4. Start printing

⚠ Multi-material printing is not possible with the control board alone.

Compatibility

• Prusa i3 MK3

• Prusa i3 MK3S

• Prusa MMU2S

❌ Not compatible with MMU1 or non-MMU systems

Package Contents

• 1 × MMU2S Control Board (Mainboard Only)