TWOTREES MKS DLC32 V2.1 Mainboard User Manual

1. Introduction

The TWOTREES MKS DLC32 V2.1 Mainboard is an advanced offline engraving master control kit designed for desktop engraving machines. This 32-bit CNC controller offers enhanced performance and versatility for laser engraving and cutting applications.

Key features include a high PWM frequency for delicate engraving effects and smoother grayscale expression, comprehensive offline control capabilities, and compatibility with various software and mobile applications.

2. Setup and Wiring

This section provides detailed instructions for connecting your MKS DLC32 V2.1 mainboard to your laser engraving or cutting machine components.

2.1 Component Overview

Refer to Figure 3 for the location of the following interfaces:

• 1. Motor Drive Slot: Connect stepper motor drivers (A4988, DRV8825, TMC2208/2209/2225 for Nema17 motors).
• 2. Microstep Setting: DIP switches (labeled 1, 2, 3) for configuring microstepping for each motor driver.
• 3. External Stepper Driver: Interface for additional drivers like TB6600/TMC2160 for Nema23 motors.
• 4. I2C Interface: For connecting I2C compatible devices.
• 5. Fire Detector Interface: For safety features.
• 6. Z Endstop/Gyroscope Interface: For Z-axis limit switch or gyroscope.
• Power 12V/24V Input: Main power supply connection.
• USB-PC Interface: For connecting to a computer.
• TF Card Slot: For offline file storage.
• Runback Button Interface: For a reset or emergency stop button.
• Touch Screen Interface: For connecting MKS TS24-R/TS35-R offline displays.
• X, Y1, Y2, Z Motor: Connections for stepper motors.
• 12V/24V Output: Power output for accessories.
• TTL Output: For laser control.
• XY Endstop, Z Endstop: Limit switch connections.
• Buzzer Interface: For audible alerts.
• CNC Principal Axis: Spindle control interface.
• Power Switch Interface: Note: The fuse needs to be pulled out for this interface to function.

2.2 General Wiring Diagram

Figure 4 provides a general overview of connecting motors, laser, endstops, and an LCD display to the mainboard. Ensure all connections are secure and correctly polarized before applying power.

2.3 Power Supply

The mainboard requires a 12V-24V DC power input. Ensure your power supply can provide sufficient current (less than 10A). For laser modules exceeding 20W, it is recommended to provide additional power directly to the laser module, rather than solely relying on the mainboard's output.

2.4 Stepper Driver Configuration

The MKS DLC32 V2.1 supports various stepper drivers. Use the onboard DIP switches (Microstep Setting, Figure 3, item 2) to configure the microstepping for each motor axis (X, Y, Z) according to your stepper motor and desired precision. Consult your stepper driver's datasheet for specific microstep settings.

3. Operating Instructions

The MKS DLC32 V2.1 offers multiple ways to control your laser engraver.

3.1 Software Compatibility

The mainboard is compatible with popular CNC and laser engraving software:

• LaserGrbl
• Xloader
• GrblController
• Benbox
• mDraw
• LightBurn

3.2 Offline Engraving

The MKS DLC32 V2.1 supports offline engraving using a TF card and an optional MKS TS24-R/TS35-R offline display.

• Prepare your engraving files (e.g., G-code) and save them to a TF card.
• Insert the TF card into the mainboard's TF card slot.
• If using an offline display, navigate through the menu to select and start your engraving job.

3.3 Web Control

The mainboard features an integrated web interface for control over a local area network (LAN).

• Connect the mainboard to your LAN (e.g., via Wi-Fi if supported, or Ethernet if an adapter is used).
• Find the IP address of the mainboard on your network.
• Open a web browser on a device connected to the same LAN and enter the mainboard's IP address.
• From the web interface, you can perform various engraving operations, transfer files, and monitor the process.

3.4 Mobile App Control

MKS provides a dedicated mobile application for controlling the DLC32 V2.1 mainboard.

• Download and install the official MKS mobile app on your smartphone.
• Connect your smartphone to the mainboard (usually via Wi-Fi).
• The app allows you to edit pictures, convert them into engraving files, transfer files to the mainboard, and perform conventional control operations.

4. Maintenance

To ensure the longevity and optimal performance of your MKS DLC32 V2.1 mainboard, follow these maintenance guidelines:

• Keep Clean: Regularly clean the mainboard to prevent dust and debris accumulation, which can lead to overheating or short circuits. Use a soft brush or compressed air.
• Check Connections: Periodically inspect all wiring connections to ensure they are secure and free from corrosion. Loose connections can cause erratic behavior or damage.
• Firmware Updates: Check the official TWOTREES or Makerbase website for any available firmware updates. Keeping the firmware up-to-date can improve performance, add features, and fix bugs.
• Environmental Conditions: Operate the mainboard in a dry, stable environment. Avoid extreme temperatures, high humidity, and direct exposure to sunlight.
• Power Off Safely: Always power off your machine and the mainboard correctly before making any physical changes or disconnections.

5. Troubleshooting

If you encounter issues with your MKS DLC32 V2.1 mainboard, consider the following troubleshooting steps:

• No Power:
  • Verify the power supply is correctly connected and providing the specified 12V-24V DC.
  • Check the power fuse on the mainboard.
  • Ensure the power switch interface (if used) is correctly configured and the fuse is pulled out as required.
• Motors Not Moving:
  • Confirm all stepper motor connections are secure and correctly wired to their respective drivers.
  • Check the microstep settings on the DIP switches for each driver.
  • Ensure the stepper drivers are correctly inserted and functioning.
  • Verify that the G-code or control commands are being sent correctly from your software.
• Laser Not Firing/Weak:
  • Check the laser module's power and TTL connections.
  • Ensure the laser module is receiving sufficient power, especially for modules >20W that require additional power.
  • Verify laser power settings in your engraving software.
• Connection Issues (USB/Web/App):
  • For USB, ensure the CH340 serial driver is installed on your computer.
  • For Web/App control, confirm the mainboard is connected to your LAN and you are using the correct IP address or app connection method.
  • Temporarily disable firewalls or antivirus software that might block communication.
• Erratic Behavior:
  • Check for loose wiring or electromagnetic interference.
  • Ensure the mainboard is properly grounded.
  • Try resetting the mainboard using the runback button interface.

6. Specifications

The following table details the technical specifications of the MKS DLC32 V2.1 mainboard:

7. Warranty and Support

For warranty information and technical support, please contact the seller or manufacturer directly. Ensure you retain your proof of purchase for any warranty claims.

When seeking support, be prepared to provide:

• Product model (MKS DLC32 V2.1)
• Detailed description of the issue
• Steps taken to troubleshoot
• Relevant photos or videos of the setup and issue

8. User Tips

• Start Simple: If you are new to laser engraving, begin with simple projects and low power settings to familiarize yourself with the machine's operation and safety protocols.
• Software Choice: Experiment with different compatible software (e.g., LaserGrbl, LightBurn) to find the one that best suits your workflow and offers the features you need. LightBurn is often recommended for its comprehensive capabilities.
• Test Materials: Always perform test engravings on scrap material before working on your final piece to fine-tune power, speed, and focus settings.
• Safety First: Always wear appropriate laser safety glasses when operating the laser engraver. Ensure proper ventilation in your workspace.
• Community Resources: Join online forums or communities dedicated to CNC and laser engraving. These can be valuable resources for tips, troubleshooting, and project ideas.