Lasergravierer-Blog

Reasons the Ray5 10W / 5W Stops During Engraving
Reasons the Ray5 10W / 5W Stops During Engraving

If your laser engraving machine stops unexpectedly during operation, the issue is often related to software, connection, electrical, or hardware factors. This guide covers the most common problems and practical laser engraver troubleshooting steps to help you quickly identify and fix the issue.

I. Software and Connection Issues (Most Common)

1. Data Transmission Interruption (USB Cable Issues)

Cause:
This is one of the most common reasons for a laser engraving machine stopping mid-job. Poor-quality USB cables, loose connections, long cables, or signal interference can interrupt data transmission.

Troubleshooting:

  • Reconnect both ends of the USB cable (computer and engraver)
  • Use a high-quality, shielded USB cable and keep it as short as possible
  • Keep the USB cable away from power cables and motor wires to reduce interference
  • If using a network connection, ensure stable network performance

2. Computer or Software Issues

Cause:
Low system performance, software freezing, or conflicts with other programs can interrupt LightBurn or LaserGRBL jobs.

Troubleshooting:

  • Restart the software and computer
  • Check power settings to ensure the system is not in “Power Saver” mode
  • Reduce data output speed in your engraving software (e.g., LightBurn). If the output frequency is too high (above 20 kHz), lower it to improve stability
  • Open Task Manager to monitor CPU and memory usage during operation

3. File or Design Issues

Cause:
Overly complex designs, excessive nodes, or corrupted G-code files can cause engraving to stop.

Troubleshooting:

  • Optimize your design using vector tools like “Combine” or “Simplify Path”
  • Remove stray points or unnecessary details in the design file
  • Re-export or regenerate the G-code file

II. Electrical and Hardware Issues

1. Power Supply Problems

Cause:
An unstable or insufficient power supply can cause laser engraver interruptions or resets.

Troubleshooting:

  • Ensure all power plugs are securely connected
  • Verify the voltage switch (110V / 220V) is set correctly
  • Avoid sharing a power source with high-power appliances that may cause voltage drops

2. Overheat Protection

Cause:
Overheating of the laser module, motor drivers, or mainboard may trigger automatic shutdown for safety.

Troubleshooting:

  • Check that all cooling fans are functioning properly
  • Ensure proper ventilation in your workspace
  • Avoid high ambient temperatures during operation

3. Motor Stall or Step Loss

Cause:
If movement is blocked or the load is too heavy, the motor may lose steps and trigger an emergency stop.

Troubleshooting:

  • Check belt tension and guide rail condition
  • Clean and lubricate the rails regularly
  • Remove any obstacles blocking movement
  • Reduce motor acceleration settings in your engraving software for smoother motion

4. Limit Switch False Trigger

Cause:
A false trigger from the limit switch can cause the machine to stop or reset unexpectedly.

Troubleshooting:

  • Check if the limit switch lever is loose or misaligned
  • Inspect wiring for damage or short circuits
  • Manually move the laser head to check for premature triggering

III. Control Board and Firmware Issues

1. Control Board Malfunction

Cause:
A malfunctioning control board may be due to aging components, electrical damage, or static interference.

Troubleshooting:

  • Observe indicator lights on the control board for abnormal behavior
  • Restart the machine to reset the system
  • Update or refresh the firmware if possible

Conclusion

When your laser engraving machine stops during operation, the issue is usually caused by one of the following:

  • USB connection or data transmission issues
  • Software or file-related problems
  • Power supply instability
  • Hardware issues such as overheating or motor stall
  • Control board or firmware errors

By systematically following these laser engraver troubleshooting steps, you can quickly identify the root cause and restore stable operation.

By Lasergravierer-Blog | November 11, 2025
How to Clean the Laser Window Lens and Nozzle on Ray5 mini/miniS
How to Clean the Laser Window Lens and Nozzle on Ray5 mini/miniS

Over time, dust, smoke residue, and debris can accumulate on the laser window lens and nozzle of your Ray5 mini or miniS. This buildup can reduce engraving quality, weaken laser output, and even affect cutting performance.

Regular cleaning helps maintain optimal performance and extends the lifespan of your laser module. This guide provides a safe and effective step-by-step cleaning process.

Tools Required

  • Microfiber cloth or lint-free paper towel
  • Alcohol (preferably isopropyl alcohol)
  • 2mm Allen wrench
  • (Optional) Soft cleaning brush or air blower

Step-by-Step Instructions

1. Remove the Laser Module

  • Disconnect the laser cable
  • Loosen the M3×14 screws or 7-shaped thumbscrews
  • Carefully remove the laser module from the machine

 

Ray5 mini/miniS 2.5/3.5W 

Ray5 mini/miniS 5.5/10W

2. Remove the Nozzle

  • Use a 2mm Allen wrench to loosen the four mounting screws
  • Remove the nozzle carefully

Special Note:

  • For 2.5W / 3.5W laser heads, the nozzle is magnetic and can be removed directly

 

3. Clean the Lens and Nozzle

  • Lightly moisten a microfiber cloth or paper towel with alcohol
  • Gently wipe:
    • The laser window lens
    • The acrylic part of the nozzle

⚠️ Important:

  • Do not use excessive liquid
  • Avoid scratching the lens surface
  • Use gentle pressure only

 

4. Reinstall the Nozzle

  • Reattach the nozzle to the laser module
  • Ensure correct orientation:
    • The side with the notch should face the back of the laser
  • Tighten the screws or ensure magnetic alignment is secure

5. Reinstall the Laser Module

  • Mount the laser module back onto the machine
  • Reconnect the laser cable
  • Ensure all connections are secure before powering on

Mini:

MiniS:

Conclusion

Cleaning the laser window lens and nozzle is a simple but essential maintenance task that directly impacts engraving quality and machine performance. By following the steps above, you can ensure your Ray5 mini/miniS operates with optimal precision and efficiency.

Regular maintenance will help maintain consistent output and prolong the life of your laser module.

 

By Lasergravierer-Blog | November 10, 2025
Replacing the Laser Fan on Ray5 mini/miniS
Replacing the Laser Fan on Ray5 mini/miniS

The laser fan plays a crucial role in cooling the laser module during operation. A malfunctioning or noisy fan can lead to overheating, reduced engraving performance, or even hardware damage.

This guide explains how to safely replace the laser fan on different Ray5 mini/miniS models to ensure proper cooling and stable performance.

Tools Required

  • 2mm hex wrench
  • Replacement laser fan
  • Small container (for storing screws and washers)

Step-by-Step Instructions

1. Ray5 mini/miniS 2.5W / 3.5W

① Remove the Fan

  • Use a 2mm hex wrench to loosen the screws
  • Be careful to keep the four 1mm black washers (do not lose them)

 

② Disconnect the Cable

  • Unplug the fan cable from the mainboard
  • Carefully remove the fan

 

③ Install the New Fan

  • Route the new fan cable through the lower-left corner
  • Connect the cable to the mainboard

④ Secure the Fan

  • Place the four washers between the fan and the frame
  • Tighten the screws to secure the fan in place

 

2. Ray5 mini/miniS 5.5W / 10W

① Remove the Fan Assembly

  • Use a 2mm hex wrench to loosen the screws
  • Carefully remove and keep track of:
    • Four 8mm standoffs
    • Four 12mm standoffs

 

② Disconnect the Cable

  • Unplug the fan cable from the motherboard
  • Remove the fan

 

③ Install the New Fan

  • Install the new fan in position
  • Connect the fan cable to the motherboard

 

④ Cable Routing

  • Route the cables along the profile groove
  • Ensure the fan cable is positioned at the back of the laser module

⑤ Reassemble the Structure

  • Place the 8mm standoffs between the fan and the motherboard
  • Place the 12mm standoffs between the motherboard and the transparent acrylic panel
  • Secure all components with screws

⚠️ Make sure the transparent acrylic panel is correctly oriented to align with the laser module connector

Mini:

MiniS:

Conclusion

Replacing the laser fan is an important maintenance task to ensure proper cooling and stable operation of your Ray5 mini/miniS. By following the correct installation steps for your specific model, you can restore efficient heat dissipation and maintain optimal engraving performance.

Regular inspection of the fan and cooling system helps prevent overheating and extends the lifespan of your laser module.

By Lasergravierer-Blog | November 10, 2025
How to Replace the Laser Window Lens on Ray5 mini/miniS
How to Replace the Laser Window Lens on Ray5 mini/miniS

The laser window lens is a critical optical component that protects the laser module while allowing the laser beam to pass through with precision. Over time, the lens may become scratched, dirty, or damaged, which can lead to reduced engraving quality or power loss.

Replacing the lens when necessary helps maintain optimal engraving performance and ensures consistent results.

Tools Required

  • M2 hex wrench (for 10W models)
  • Replacement laser window lens
  • Clean workspace (to avoid dust contamination)

Step-by-Step Instructions

1. Remove the Laser Protective Cover

  • For 2.5W / 3.5W / 5.5W models:
    • Directly remove the protective cover
  • For 10W model:
    • Use an M2 hex wrench to loosen the screws securing the protective cover
    • Carefully remove the cover

 

2.5W/3.5W 

    10W

    2. Remove the Old Lens

    • Gently unscrew the window lens by turning it counterclockwise
    • Carefully take out the old lens
    • Avoid touching the lens surface directly to prevent contamination

     

    2.5W/3.5W                    10W

    3. Install the New Window Lens

    • Align the new lens properly with the mounting threads
    • Gently screw it in by turning clockwise
    • Do not overtighten—firm is enough to ensure a secure fit

    4. Reinstall the Protective Cover

    • Place the protective cover back onto the laser module
    • Secure it using screws (for 10W models)
    • Ensure everything is properly aligned and tightened

    Mini:

    MiniS:

    Conclusion

    Replacing the laser window lens is a simple yet essential maintenance procedure that helps maintain engraving clarity and laser efficiency. By following the correct steps, you can ensure your Ray5 mini/miniS continues to deliver high-quality and stable performance.

    Regular inspection and timely replacement of the lens will significantly extend the lifespan of your laser module and improve overall output quality.

    By Lasergravierer-Blog | November 10, 2025
    Ray5 mini/miniS Laser Module Replacement
    Ray5 mini/miniS Laser Module Replacement

    The laser module is the core component of the Ray5 mini/miniS engraving system. Over time, laser modules may need to be replaced due to wear, reduced output, or damage.

    Different wattage versions use different mounting structures, so it’s important to follow the correct procedure for your specific model to ensure safe and proper installation.

    Tools Required

    • Screwdriver / hand tools (M3 screws or L-shaped screws)
    • Replacement laser module
    • Clean workspace

    1. Ray5 mini/miniS 2.5W / 3.5W

    ① Remove the Old Laser

    • Unplug the laser cable
    • Loosen the M3×14 hand screws
    • Carefully remove the laser module

    ② Install the New Laser

    • Align the plastic mount on the back of the laser with the X-axis frame
    • Slide the module down vertically into position
    • Tighten the hand screws securely
    • Reconnect the laser cable

     

    2. Ray5 mini/miniS 5.5W / 10W

    ① Remove the Old Laser

    • Unplug the laser cable
    • Loosen the L-shaped hand screws
    • Remove the old laser module

    ② Transfer the Dovetail Rail

    • Loosen the screws on the back of the laser
    • Remove the dovetail rail from the old module
    • Install the dovetail rail onto the new laser module

     

    Mini:

    MiniS:

    Conclusion

    Replacing the laser module on the Ray5 mini/miniS is a straightforward process when following the correct steps for each wattage type. Proper installation ensures stable performance, accurate engraving, and optimal laser output.

    Regular maintenance and timely replacement of the laser module help extend the machine’s lifespan and maintain consistent engraving quality.

    By Lasergravierer-Blog | November 10, 2025
    Replacing the Motor on Ray5 Mini/MiniS
    Replacing the Motor on Ray5 Mini/MiniS

    The X-axis and Y-axis motors are essential components that drive precise movement during engraving. If the motor becomes faulty, you may experience issues such as inaccurate positioning, skipped steps, or complete axis failure.

    This guide explains how to safely replace the motor on the Ray5 mini and miniS series. The overall procedure is similar for both X-axis and Y-axis motors, with slight structural differences between models.

    1. Disconnect Components

    • Disconnect the X/Y-axis motor cables
    • Disconnect the laser module cable

    2. Remove the Laser Module

    • Loosen the M3×14 screws or L-shaped hand-tight screws
    • Remove the laser module

     

    Ray5 mini/miniS 2.5/3.5W 

    Ray5 mini/miniS 5.5/10W

    3. Remove Acrylic Covers (Ray5 miniS only)

    If you are working on the Ray5 miniS, additional steps are required:

    • Remove the right-side acrylic cover (8 screws)
    • Remove the left-side acrylic cover (8 screws)
    • Disconnect the door switch cable

    ⚠️ Important:

    • Do not disconnect the emergency stop cable

     

    Right-side acrylic cover 

    Left-side acrylic cover 

    Door switch

    4. Remove Slider Components

    • Use a 2mm hex wrench to loosen the four screws
    • Remove:
      • Slider plastic part (mini)
      • Metal slider with plastic component (miniS)

     

    Ray5 mini/miniS 2.5/3.5W 

    Ray5 mini/miniS 5.5/10W

    5. Remove the Motor

    • Use a 2.5mm hex wrench to loosen the four motor screws
    • Carefully remove the X/Y-axis motor

    6. Install the New Motor

    • Install the new motor in the correct orientation:

    Ray5 mini

    • X-axis motor connector → faces left
    • Y-axis motor connector → faces backward

    Ray5 miniS

    • X-axis motor connector → faces left
    • Y-axis motor connector → faces upward
    • Ensure the timing belt is properly seated on the coupler
    • Tighten all screws securely

     

    7. Reinstall Slider Components

    • Reinstall the slider plastic part or metal slider onto the X-axis bracket
    • Ensure proper alignment and secure fastening

    8. Reassemble (Ray5 miniS only)

    • Reinstall the left and right acrylic covers
    • Reconnect the door switch cable
    • Ensure all components are properly secured

    Mini:

    MiniS:

    Conclusion

    Replacing the X/Y-axis motor on the Ray5 mini/miniS is a detailed but manageable maintenance task. By carefully following the correct steps and ensuring proper installation, you can restore precise motion control and maintain engraving accuracy.

    Proper motor installation is essential for smooth operation, consistent engraving quality, and long-term machine stability.

    By Lasergravierer-Blog | November 10, 2025
    Ray5 mini/miniS Mainboard Replacement
    Ray5 mini/miniS Mainboard Replacement

    Replacing the mainboard on a Ray5 mini or Ray5 miniS laser engraver may sound difficult, but the process is straightforward when performed carefully. This guide explains the exact replacement procedure from the official instructions while adding beginner-friendly explanations, safety precautions, troubleshooting advice, and maintenance tips to help you complete the repair successfully.


    Table of Contents

    1. What This Guide Covers
    2. Quick Answer
    3. Why This Process Matters
    4. Before You Start
    5. Requirements
    6. Precautions
    7. Step-by-Step Tutorial
    8. Common Problems and Solutions
    9. Tips for Better Results
    10. Frequently Asked Questions
    11. Final Thoughts

    What This Guide Covers

    This tutorial explains how to replace the mainboard on the Ray5 mini and Ray5 miniS laser engravers.

    You will learn:

    • How to safely access the mainboard
    • Which cables must be disconnected
    • How to reconnect the new board correctly
    • How to align the TYPE-C and POWER ports
    • How to avoid common installation mistakes
    • Basic troubleshooting after replacement

    The Ray5 mini and Ray5 miniS use the same mainboard, and the replacement procedure is similar. This guide uses the Ray5 mini X-axis as the example machine.


    Quick Answer

    To replace the Ray5 mini or miniS mainboard:

    1. Remove the front beam cover using a 2.5 mm hex wrench.
    2. Remove the existing mainboard.
    3. Disconnect the X/Y motors, emergency stop, laser, and limit switch cables.
    4. Connect all cables to the new mainboard using the original labels.
    5. Install the new board, align the TYPE-C and POWER ports, and secure everything with screws.

    Always power off the machine before starting maintenance.


    Why This Process Matters

    The mainboard is the control center of the laser engraver. It manages:

    • Motor movement
    • Laser control
    • Limit switches
    • Emergency stop functions
    • USB communication
    • Power distribution

    If the mainboard becomes damaged or unstable, you may experience:

    • Connection failures
    • Random alarms
    • Motor movement errors
    • Laser output problems
    • Machine startup issues
    • Limit switch errors

    Replacing the board correctly helps restore stable machine operation and prevents additional electrical issues.


    Before You Start

    Before opening the machine, prepare a clean workspace with enough lighting.

    Make sure:

    • The machine is powered off
    • The power cable is disconnected
    • The laser module is cool
    • Small screws can be safely stored during disassembly

    For the Ray5 miniS, you also need additional working space because the acrylic base plate must be removed during the process.


    Requirements

    Prepare the following tools and items before starting:

    • 2.5 mm hex wrench
    • 2.5 mm Allen wrench
    • Replacement Ray5 mini/miniS mainboard
    • Clean working surface
    • Screw storage tray or container

    Follow official machine specifications or instructions.


    Precautions

    Before replacing the Ray5 motherboard, carefully review these safety precautions.

    Disconnect Power Completely

    Always disconnect the machine from power before touching internal electronics. Working on a powered machine may damage the new mainboard.

    Avoid Pulling on Wires

    When disconnecting cables, pull gently from the connector housing instead of pulling the wires directly.

    Keep Track of Cable Labels

    The cables are labeled to match the corresponding ports on the mainboard. Incorrect connections may prevent the machine from operating properly.

    Prevent Static Electricity

    Avoid touching exposed electronic components unnecessarily. Static discharge can damage sensitive circuitry.

    Organize Screws Carefully

    The front beam cover and mainboard use multiple screws. Store them safely to avoid losing hardware during the repair.


    Step-by-Step Tutorial

    Step 1: Remove the Front Beam Cover

    Action

    Use a 2.5 mm hex wrench to loosen the four screws and remove the front beam cover.

    For the Ray5 miniS, also remove the acrylic base plate to facilitate operation.

    Expected Result

    You should now have access to the internal mainboard compartment inside the front beam.

    Important Notes

    • Keep the screws organized for reinstallation.
    • Do not force the cover if it feels stuck.
    • Lift the cover carefully to avoid pulling internal cables.

     

    Step 2: Remove the Mainboard

    Action

    Use a 2.5 mm Allen wrench to loosen the four screws and remove the mainboard.

    Expected Result

    The existing mainboard should now be free from the mounting position inside the beam.

    Important Notes

    • Support the board gently while removing screws.
    • Do not bend the board during removal.
    • Avoid touching exposed electronic components.

     

    Step 3: Disconnect the Mainboard Cables

    Action

    Disconnect the following cables from the mainboard:

    • X-axis motor (X)
    • Y-axis motor (Y)
    • Emergency stop (MS)
    • Laser (PWM)
    • X-axis limit switch (X-)
    • Y-axis limit switch (Y-)

    Expected Result

    All required cables should now be disconnected from the old mainboard.

    Important Notes

    • Disconnect cables one at a time if needed.
    • Double-check cable labels before removal.
    • Never pull forcefully on connectors.

     

    Step 4: Install the New Mainboard

    Action

    Connect the cables to the new mainboard, matching each cable label with the corresponding port on the mainboard.

    Place the new mainboard inside the front beam, routing the cables through the gap near the Y-axis limit switch.

    Make sure the TYPE-C and POWER ports at the front of the beam align correctly with the mainboard connectors.

    Expected Result

    The new mainboard should sit correctly inside the beam with all cables securely connected.

    Important Notes

    Cable Routing Matters

    Improper cable routing may pinch wires when reinstalling the cover.

    Verify Port Alignment

    Before tightening screws, confirm:

    • TYPE-C port alignment
    • POWER port alignment

    Misalignment may prevent proper cable connection later.

    Check Cable Labels Carefully

    The labels should match the ports exactly:

    Cable Label Mainboard Port
    X X-axis motor
    Y Y-axis motor
    MS Emergency stop
    PWM Laser
    X- X-axis limit switch
    Y- Y-axis limit switch

     

     

    Step 5: Secure the Mainboard and Reinstall the Cover

    Action

    Use a 2.5 mm hex wrench and screws to secure the mainboard, then reinstall the cover.

    This completes the mainboard replacement.

    Expected Result

    The machine should now be fully reassembled with the new mainboard installed.

    Important Notes

    • Tighten screws evenly.
    • Do not overtighten screws.
    • Confirm no cables are trapped beneath the cover.

     

     Mini:

    MiniS:

    Common Problems and Solutions

    Problem Possible Cause Solution
    Machine does not power on Power connector not aligned correctly Check POWER port alignment
    Laser does not fire PWM cable disconnected Verify PWM cable connection
    X or Y axis not moving Motor cable connected incorrectly Reconnect X and Y motor cables
    Homing errors occur Limit switch cables disconnected Check X- and Y- connections
    Emergency stop warning MS cable loose Reconnect MS cable securely
    USB connection not detected TYPE-C port misalignment Reposition the mainboard
    Cover does not fit properly Cable routing issue Re-route cables through the correct gap
    Random alarms during movement Loose connectors Recheck all cable connections

    Tips for Better Results

    Take Photos Before Disassembly

    Photos help beginners remember cable positions and routing.

    Label Connectors if Necessary

    If cable labels are unclear, add temporary labels before disconnecting anything.

    Work Slowly

    Most installation mistakes happen when rushing the process.

    Test Before Full Reassembly

    After connecting the new board, verify the ports align properly before tightening everything completely.

    Keep the Interior Clean

    Dust and debris inside the beam can affect long-term reliability.


    Frequently Asked Questions

    Is the Ray5 mini mainboard the same as the Ray5 miniS mainboard?

    Yes. The Ray5 mini and Ray5 miniS use the same mainboard, and the replacement procedure is similar.


    Do I need special firmware after replacing the mainboard?

    Follow official machine specifications or instructions.


    Why do I need to remove the acrylic base plate on the miniS?

    Removing the acrylic base plate provides easier access during the repair process.


    What happens if I connect a cable to the wrong port?

    Incorrect cable connections may cause movement errors, limit switch problems, or laser control issues. Always match cable labels carefully.


    Can I replace the board without removing the front beam cover?

    No. The front beam cover must be removed to access the mainboard.


    What tool size is required for this repair?

    The official instructions specify a 2.5 mm hex wrench and a 2.5 mm Allen wrench.


    Why are the TYPE-C and POWER ports important during installation?

    These ports must align correctly with the openings at the front of the beam so the machine can connect properly after reassembly.


    What should I do if the machine still shows errors after replacement?

    Recheck:

    • Cable connections
    • Port alignment
    • Motor connectors
    • Limit switch connectors
    • Emergency stop cable

    If problems continue, follow official machine specifications or instructions.


    Final Thoughts

    Replacing the Ray5 mini or Ray5 miniS mainboard is a manageable repair when performed carefully and methodically. The most important part of the process is reconnecting every cable correctly and ensuring the TYPE-C and POWER ports align properly during installation.

    By following the official procedure exactly and taking your time during disassembly and reassembly, you can safely restore your laser engraver to normal operation. Proper cable management, organized screws, and careful connector handling will help prevent additional issues during the repair process.

    For firmware, electrical specifications, or additional troubleshooting, follow official machine specifications or instructions.

    By Lasergravierer-Blog | November 10, 2025
    Ray5 mini/miniS Timing Belt Replacement
    Ray5 mini/miniS Timing Belt Replacement

    The timing belt is a key component responsible for transmitting motion between the motor and the X/Y axes. Over time, belts can wear out, loosen, or break, leading to issues such as inaccurate positioning, skipped steps, or uneven engraving.

    Replacing the timing belt ensures smooth motion, precise alignment, and consistent engraving quality on your Ray5 mini/miniS.

    1. Remove the Laser Module

    • Disconnect the laser cable
    • Loosen the M3×14 screws or L-shaped hand screws
    • Remove the laser module

    Ray5 mini/miniS 2.5/3.5W

    Ray5 mini/miniS 5.5/10W

    2. Remove the Top Cover (Ray5 miniS only)

    • Remove the top acrylic cover
    • Unscrew 12 screws to access internal components

     

    Top acrylic cover

    3. Remove the Slider Components

    • Use a 2mm hex wrench to loosen the four screws
    • Remove:
      • Slider plastic part (mini)
      • Metal slider with plastic part (miniS)

     

    Ray5 mini/miniS 2.5/3.5W 

    Ray5 mini/miniS 5.5/10W

    4. Remove the Timing Belt

    • Use a hex wrench to loosen the screws securing both axes:
      • X-axis: 2 screws
      • Y-axis: 4 screws (2 front + 2 rear)
    • Carefully remove the timing belt

    ⚠️ Important:

    • Do not miss the T-slot screws that secure the belt

    5. Install the New Timing Belt

    • Thread the new belt through the pulleys and connecting shaft in order
    • Ensure the belt is properly seated on the shaft

    💡 Tip:

    • Use a screwdriver to guide the belt
    • Slightly move pulleys left and right to help the belt pass smoothly

     

    6. Tension and Secure the Belt

    • Insert one T-slot screw into the profile along the X-axis
    • Press the belt onto the screw and tighten it
    • Pull the belt tight on the opposite side
    • Insert the second T-slot screw and tighten

    Check after installation:

    • The belt should have proper elasticity
    • Pulleys should move smoothly without sticking

    7. Reinstall Components

    • Reinstall the slider and plastic parts
    • For Ray5 miniS, reinstall the top acrylic cover

     Mini:

    MiniS:

    Conclusion

    Replacing the timing belt on the Ray5 mini/miniS is essential for maintaining precise motion control and high engraving accuracy. Proper installation ensures smooth operation, reduces mechanical errors, and extends the lifespan of the machine.

    Regular inspection and timely replacement of the timing belt will help maintain consistent performance and reliable engraving results.

    By Lasergravierer-Blog | November 10, 2025
    Replacing the Ribbon Cable on Ray5 mini/miniS
    Replacing the Ribbon Cable on Ray5 mini/miniS

    Ray5 mini and miniS use the same type of ribbon cable, and the replacement method is similar. This guide takes the Ray5 mini as an example.

    1. Loosen the Velcro and disconnect the cables for the laser, X/Y-axis motors, and the X-axis limit switch. For the Ray5 miniS, you also need to remove the acrylic base to make the operation easier.

    2. Use a 2.5 mm hex wrench to loosen the four screws and remove the front beam cover. 

    3. Use a 2.5 mm hex wrench to loosen the four screws and remove the mainboard.

    4. Disconnect the X and Y axis motor cables (X, Y), the laser cable (PWM), and the X-axis limit switch cable (X-) from the mainboard.

    5. Insert the new combined cable into the mainboard according to the cable labels and the markings on the mainboard. Place the mainboard inside the front beam, routing the cable through the gap near the Y-axis limit switch. Make sure the TYPE-C and POWER ports at the front of the beam align correctly with the mainboard connectors.

    6. Secure the mainboard with screws using a 2.5 mm hex wrench, and then install the cover plate.

    7. Insert the X-axis motor (X), X-axis limit switch (X), Y-axis motor (Y), and laser according to the cable labels, completing the replacement of the combined cable.

    Mini:

    MiniS:

    By Lasergravierer-Blog | November 10, 2025
    Ray5 MiniS: Engraved Patterns Are Unclear
    Ray5 MiniS: Engraved Patterns Are Unclear

    Unclear or faint engraving patterns are one of the most common issues when using the Ray5 MiniS. This problem is usually related to focus accuracy, software settings, parameter mismatch, or lens contamination rather than hardware failure.

    This guide walks you through a structured troubleshooting process to help restore clear and high-quality engraving results.

    1) First make sure the focus is correct.

     Use the focus block to adjust the focal length. 

    2) Check if the S value in Lightburn

    That is, click Lightburn-Edit-Device Setting and check whether the S-value MAX is 1000.

    3) Check the parameters

    Check whether the engraving parameters are correct, especially the speed unit; please refer to the parameter table on the official website. And for the LaserGRBL software, the value of S-MAX is 10 times the target laser power, such as when the laser power is 100%, S-MAX needs to be set to 1000%

    4) Turn on the constant power

    When editing parameters, make sure the laser mode is set to constant power mode, as shown in the figure.

    5) Check the window mirror

    Check whether the window mirror of the laser head unit is contaminated. If there is contamination, it is recommended to use lens cleaning paper or a dust-free cloth soaked in alcohol to wipe gently to avoid damaging the coating.

     

    Conclusion

    Unclear engraving is typically caused by setup or parameter issues rather than hardware defects. By carefully checking focus, software settings, engraving parameters, and lens cleanliness, you can quickly restore sharp and detailed engraving results.

    Maintaining proper configuration and routine maintenance will ensure consistent performance and high-quality output from your Ray5 MiniS.

    By Lasergravierer-Blog | November 10, 2025