MKS Monster8 V2 Control Board and Mini12864 V3.0 LCD Display User Manual

1. Product Overview

The MKS Monster8 V2 Control Board, paired with the Mini12864 V3.0 Graphic LCD Display, is a comprehensive solution designed for advanced 3D printer control. This system offers robust performance, flexible upgrade options, and enhanced safety features, making it suitable for various 3D printer builds, including Voron and Ender 3 series.

Key Features:

• Flexible Upgrades: Features 8 stepper drivers and 9 motor interfaces, allowing for extensive DIY upgrades and compatibility with various motor drivers.
• Precise Control: Optimized for Voron printers, supporting both Marlin 2.0.x and Klipper firmware, and fully compatible with the MKS Mini12864 LCD.
• Multifunctionality: Equipped with DC12-24V input, DC12V and DC5V outputs, an SPI communication microstorage slot, and a reserved SPI signal interface.
• Enhanced Safety: The Monster8 V2 incorporates additional safety circuits and features, including a dedicated DC5V power supply for Raspberry Pi and a WiFi interface for RRF firmware.
• Graphic LCD Display: The Mini12864 V3.0 display features an RGB backlight with online color change capabilities, an encoder for parameter adjustment, and file selection, offering plug-and-play functionality for RAMPS systems.

2. Specifications

Display Dimensions:

Figure 2.1: Dimensions of the MKS Mini12864 V3.0 LCD Display, showing measurements in millimeters and inches.

3. Setup and Installation

This section provides general guidelines for setting up your MKS Monster8 V2 control board and Mini12864 V3.0 LCD display. Specific installation steps may vary depending on your 3D printer model (e.g., Voron 2.4, Ender 3 series) and chosen firmware.

Figure 3.1: Overview of the MKS Monster8 V2 Control Board and Mini12864 V3.0 LCD Display, along with included cables and connectors.

3.1 Power Connection

• Connect a DC12-24V power supply to the main power input terminals of the Monster8 V2 board.
• Ensure correct polarity. The board provides DC12V, DC5V, and DC3.3V outputs for various components.
• For Raspberry Pi integration, utilize the dedicated DC5V 3A independent power supply output.

3.2 Motor and Endstop Connections

The Monster8 V2 supports 8 stepper drivers and 9 motor interfaces. Refer to the pinout diagram for precise connections.

Figure 3.2: Detailed pinout diagram of the MKS Monster8 V2 Control Board, indicating various connections and jumpers.

Figure 3.3: Labeled diagram of the MKS Monster8 V2 Control Board, highlighting key components and interfaces such as motor drivers, endstops, and communication ports.

• Connect your stepper motors to the appropriate driver slots.
• Connect endstop switches to the designated endstop pins. Note that only the Z+ endstop allows selection between 5V or VIN power; other endstops are 5V.
• The board supports both 3.3V and 5V logic inputs for various sensors and peripherals.

3.3 LCD Display Connection

Connect the Mini12864 V3.0 LCD display to the Monster8 V2 board using the provided SPI communication cable. The display is designed for plug-and-play compatibility.

Figure 3.4: The MKS Monster8 V2 Control Board and Mini12864 V3.0 LCD Display shown together, illustrating their relative sizes and potential connection points.

3.4 Firmware Installation

The MKS Monster8 V2 board supports Marlin 2.0.x and Klipper firmware. You will need to compile and flash the appropriate firmware for your specific 3D printer configuration.

• Download the latest Marlin 2.0.x or Klipper firmware source code.
• Configure the firmware according to your printer's hardware, including motor types, endstop configurations, and thermistor types.
• Flash the compiled firmware to the Monster8 V2 board via USB-C or other supported methods.

4. Operating Instructions

Once the board and display are installed and firmware is flashed, you can begin operating your 3D printer.

4.1 Using the Mini12864 V3.0 LCD Display

• The display features an encoder knob for navigation and selection. Rotate the knob to scroll through menus and press it to confirm selections.
• The RGB backlight can be adjusted. For Marlin firmware, Gcode commands like M150 R100 G100 U100 can be used to set RGB backlight colors.
• The display supports online color changes and can indicate different states during the printing process through color variations.
• Use the display to select files from the microstorage card for printing, monitor print progress, and adjust printer parameters.

4.2 Firmware Specific Operations

Refer to the documentation for your chosen firmware (Marlin or Klipper) for detailed operating procedures, Gcode commands, and advanced configurations.

• Marlin Firmware: Utilize the display menus for printer control, calibration, and starting prints.
• Klipper Firmware: Typically controlled via a web interface (e.g., Mainsail, Fluidd) running on a connected Raspberry Pi, with the display providing real-time status and basic controls.

5. Maintenance

Proper maintenance ensures the longevity and reliable operation of your MKS Monster8 V2 control board and Mini12864 V3.0 LCD display.

• Power Off Before Servicing: Always disconnect the power supply before performing any maintenance, connecting/disconnecting components, or making wiring changes.
• Keep Clean: Regularly clean the board and display to prevent dust accumulation, which can lead to overheating or short circuits. Use a soft, dry brush or compressed air.
• Fuse Replacement: The board features a replaceable fuse. If the board loses power unexpectedly, check the fuse and replace it with one of the same rating if blown.
• Environmental Conditions: Operate the board and display within recommended temperature and humidity ranges to prevent damage. Avoid exposure to moisture or extreme temperatures.
• Firmware Updates: Periodically check for updated firmware versions for your board and display. Updates can provide new features, performance improvements, and bug fixes.

6. Troubleshooting

This section provides general troubleshooting tips for common issues. For more specific problems, consult the community forums for Marlin or Klipper firmware, or contact the manufacturer.

• No Power:
  • Verify the power supply is correctly connected and providing the correct voltage (DC12-24V).
  • Check the main fuse on the board for continuity. Replace if blown.
  • Ensure all power connections are secure.
• Display Not Working:
  • Ensure the SPI communication cable between the board and display is securely connected at both ends.
  • Verify that the firmware is correctly configured for the Mini12864 display.
  • Check for any physical damage to the display or its cable.
• Motors Not Moving:
  • Confirm that stepper drivers are correctly inserted and configured (e.g., current settings).
  • Check motor wiring for correct phase connections.
  • Verify that the firmware is correctly configured for your motor types and steps per millimeter.
  • Ensure endstops are not triggered prematurely.
• Communication Issues (USB/WiFi):
  • For USB, ensure correct drivers are installed on your computer.
  • For WiFi, verify network settings in your firmware and ensure the WiFi module is properly installed (if applicable).

7. Warranty and Support

Information regarding specific warranty terms and availability of spare parts for this product is not provided in the product details. For any support inquiries or warranty claims, please contact the seller or manufacturer directly through your purchase platform.

Please retain your proof of purchase for any potential warranty claims.