During framing, the laser is typically used as a visual guide to outline the working area. If no laser output is observed during this process, it is usually due to basic setup or configuration issues rather than hardware failure.

The following are the most common causes and corresponding solutions.

1. Lens Cover Not Removed

Before operating the machine, ensure that the protective lens cover has been removed from the laser module.

If the cover is still in place, the laser beam will be blocked, making it appear as if there is no laser output.

To resolve this issue:

• Check the laser head for any protective cover
• Remove the lens cover before starting framing or engraving

This is a common oversight, especially for new users or after maintenance.

2. Laser Not Enabled

When using LightBurn, click the top menu button and enable the “Laser on when framing” option, then click OK.

Conclusion

No laser output during framing is typically caused by a remaining lens cover or a disabled software setting. By ensuring that the protective cover is removed and the appropriate option is enabled in the software, users can restore normal framing functionality.

Proper setup and configuration checks before operation help ensure accurate positioning and a smoother engraving workflow.

If the Z-axis of the Nano machine fails to lift properly, it is often related to a malfunction in the column control board. Replacing this component can restore normal Z-axis movement. Follow the steps below carefully to ensure a safe and correct repair process.

1. Remove the L-shaped Support Bracket

Begin by removing the L-shaped support bracket from the machine.

• Turn the hand-tightened nut counterclockwise
• Carefully detach and remove the L-shaped support bracket

This step provides access to the internal structure of the column.

2. Remove the Column Housing

Next, remove the column housing to access the internal components.

• Use a hex wrench to remove the 12 screws located on both the inner and outer sides of the column
• Remove the positioning plate and the column cover
• Carefully take out the column housing

This exposes the internal control board assembly.

3. Disconnect and Remove the Column Control Board

Proceed to remove the faulty column control board.

• Disconnect the cables on both sides of the column control board
• Use a hex wrench to remove the 4 screws securing the board
• Carefully lift out the control board

Take care to note cable positions for reassembly.

4. Remove the Rear Screws

• Remove the 2 screws located at the back of the column control board
• Fully detach the control board from the structure

At this point, the faulty board can be completely removed.

5. Install the New Column Control Board

• Place the new column control board into the original position
• Secure it using the appropriate screws
• Reconnect all cables exactly as they were before

Ensure all connections are firm and correctly aligned.

6. Reassemble the Column Housing

• Reinstall the column housing
• Place back the positioning plate and column cover in order
• Use a hex wrench to tighten all screws securely

Proper reassembly ensures structural stability.

7. Reinstall the L-shaped Support Bracket

• Reattach the L-shaped support bracket
• Tighten the hand-tightened nut to secure it in place

Conclusion

A Z-axis lifting malfunction on the Nano is commonly caused by a faulty column control board. By carefully replacing this component and following the correct disassembly and reassembly steps, you can restore full Z-axis functionality.

Always ensure all screws are properly tightened and all cables are securely connected to prevent future issues and maintain stable machine performance.

If your Nano Pro laser engraver suddenly stops during engraving, it is usually related to USB connection issues or a machine safety alarm. This guide explains the common causes and how to fix them quickly.

1. USB Data Connection Loss

A loose or damaged USB cable can interrupt communication between your computer and the laser engraver, causing the job to stop mid-process.

How to fix:

• Reconnect the USB cable securely
• Replace the cable if it is worn or unstable
• Ensure a stable connection before starting engraving

2. Machine Alarm Triggered

The machine may automatically stop when a safety alarm is triggered, such as vibration, tilting, or unsafe operating conditions. When this happens, the red indicator light will turn on.

How to fix:

• Remove the cause of the alarm (e.g., stabilize the machine)
• Wait for the alarm to clear and resume operation
• If the alarm persists, connect to your computer
• Open LightBurn or LaserBurn and enter $X in the console to reset the alarm

Conclusion

If your Nano Pro stops during engraving, the issue is most commonly caused by a USB connection failure or a triggered safety alarm. By checking the cable connection and resetting the alarm using $X, you can quickly restore normal operation and continue engraving without further interruption.

👉 Keeping your connection stable and ensuring a safe working environment will help prevent most engraving interruptions.

If you are experiencing connection issues when using LaserBurn via IP with your Nano Pro laser engraver, the problem is usually related to network settings or device conflicts. Follow the troubleshooting steps below to quickly restore the connection.

1. Network Configuration

The Nano Pro and your computer must be connected to the same network for IP communication to work properly. If they are on different networks, the connection will fail.

How to fix:

• Ensure both devices are on the same Wi-Fi network
• Configure or verify the network settings via the machine screen or mobile app
• Restart the router or reconnect devices if needed

2. Device Already in Use

The Nano Pro only supports one active IP connection at a time. If the machine is already connected to another device or software, new connections will be blocked.

How to fix:

• Disconnect the machine from any other software or device
• Close any previously connected LaserBurn or LightBurn sessions
• Reconnect and try again

Conclusion

LaserBurn IP connection issues on Nano Pro are typically caused by network mismatch or multiple active connections. Ensuring both devices are on the same network and confirming the machine is not already in use will resolve most problems quickly.

For stable performance, always maintain a consistent network connection and avoid running multiple IP connections simultaneously.

• Lightburn: Click the button, select this port from the COM port list, and set

961200 baud rate.

Conclusion

Most Nano Pro connection issues are caused by wrong cables, missing CH340 drivers, incorrect port selection, or baud rate mismatch.

By ensuring a proper data cable, installing the correct driver, selecting the right COM port, and setting the baud rate to 961200, you can quickly restore a stable connection and start engraving smoothly.

If the cooling fan on your Ray5 laser module is damaged or not functioning properly, replacing it is a straightforward process. Follow the steps below to safely install a new fan and ensure proper cooling performance.

Step-by-Step Instructions

1. Remove the screws
Use a Phillips screwdriver to carefully unscrew and remove the screws securing the fan.

2. Disconnect the fan cable
Unplug the fan cable from the mainboard, then remove the old fan from the laser head.

3. Install the new fan
Connect the new fan cable to the mainboard. Install the fan into the laser head, ensuring the intake side faces up and the exhaust side faces down for proper airflow.

4. Secure the fan
Use a Phillips screwdriver to tighten the screws and firmly fix the fan in place.

Conclusion

Replacing the fan on your Ray5 10W or 5W laser module is an essential maintenance task to ensure proper cooling and stable performance. A correctly installed fan helps prevent overheating and extends the lifespan of your laser engraver.

By following the correct installation steps and ensuring the proper airflow direction, you can keep your machine running safely and efficiently. Always make sure the machine is powered off before performing any maintenance.

Cleaning the lens window and nozzle of a laser engraver is an essential and routine maintenance task.
A dirty lens window can severely reduce laser power, causing weak or uneven engraving/cutting.
A clogged nozzle can disrupt the flow of assist air, resulting in poor cutting quality and even potential damage to the laser head due to insufficient cooling.

Below is a detailed and safe cleaning guide.

Core Principles: Safety First!

Power Off and Cool Down:
Always turn off the laser engraver and unplug the power cord before cleaning.
Wait until the laser head is completely cool, especially after recent use when it may still be very hot.

Extreme Gentleness:
Both the lens window and nozzle are delicate and fragile (especially the coating on the lens surface).
Any scratch can cause permanent damage. Handle with care and apply very light pressure during cleaning.

Use Proper Tools:
Prepare professional cleaning tools.
Avoid using paper towels or clothing that can leave fibers or cause scratches.

Part 1: Cleaning the Laser Head Lens Window

The lens window protects the internal mirrors and lenses of the laser module, and it is the most likely component to accumulate smoke and dust.

Required Tools:

Anhydrous alcohol (≥99% purity): Evaporates quickly without leaving water stains.
Avoid medical alcohol, which contains water and other additives.

Lint-free cotton swabs/lens cleaning sticks: With wooden or plastic handles wrapped in microfiber.

Air blower/camera dust blower: For removing large dust particles.

Gloves (optional but recommended): Prevent fingerprints and oil stains.

Cleaning Steps:

1. Remove the Lens Window:

Gently unscrew the lens holder (usually counterclockwise).

Place the lens on a clean, soft surface such as lint-free paper or tissue.

2. Blow Off Dust:

Use the air blower to gently blow both sides of the lens to remove surface dust and particles.
This prevents scratches during wiping.

3. Alcohol Cleaning:

Take a new lint-free swab and apply 1–2 drops of anhydrous alcohol—it should be damp, not dripping.

Start from the center of the lens and gently wipe outward in a spiral motion.
Do not wipe back and forth.

Use a new swab, moistened again with alcohol, to repeat the spiral cleaning for a deeper cleanse.

4. Dry and Inspect:

Use a clean, dry, lint-free swab to absorb any residual alcohol, again moving from center outward.

Hold the lens toward a light source (e.g., phone flashlight) and inspect from multiple angles.
Ensure there are no fingerprints, watermarks, or dust.
If contamination remains, repeat the previous steps.

5. Reinstall the Lens:

Ensure the lens holder is clean (use the air blower if needed).

Carefully reinstall the lens in its original orientation (the coated side usually faces inward—if unsure, refer to its direction before removal).

Screw the retaining ring back securely but not too tightly to avoid cracking the lens.

Part 2: Cleaning the Nozzle

The nozzle directs assist air (or oxygen/nitrogen) to the cutting point, helping to remove molten material and provide cooling.
It often becomes clogged with smoke residue or melted debris.

Required Tools:

Same as those for lens cleaning: anhydrous alcohol and lint-free swabs.

Fine needle, nozzle cleaner, or toothpick (for unclogging small holes).

A small container (for soaking the nozzle).

Cleaning Steps:

1. Remove the Nozzle:

The nozzle is usually threaded under the laser head. Unscrew it counterclockwise.

Be aware that some accumulated dust may fall out.

2. Physical Unclogging:

If the nozzle outlet is blocked by molten debris, use a fine needle or nozzle cleaner to gently clear the hole.
Be very careful not to enlarge or scratch the inner surface—this could affect airflow precision.

For double-layer nozzles, check the gaps between layers for blockage.

3. Soaking and Brushing:

For stubborn oil or residue, soak the nozzle in anhydrous alcohol for 10–15 minutes.

After soaking, use a lint-free swab or a soft brush (like an old toothbrush) to gently clean the inside and outside of the nozzle, especially around the outlet.

4. Rinse and Dry:

Rinse the nozzle again with fresh anhydrous alcohol.

Use the air blower to completely dry both the inside and outside of the nozzle, ensuring no moisture remains.
This is critical, as moisture can affect cutting performance.

5. Reinstall the Nozzle:

Once fully dry, screw the nozzle back into place.
Tighten it securely, but avoid overtightening to prevent thread damage.

Recommended Cleaning Frequency

Daily / Before Each Use:
Use an air blower to remove surface dust from the lens window and nozzle.

Weekly or Every 40 Hours of Operation:
Perform a full visual inspection and clean thoroughly if any contamination is visible.

Clean Immediately If Any of the Following Occur:

Laser power output drops noticeably (cutting depth decreases at the same power).

Engraving/cutting lines become uneven or blurry.

Sparks are unusually large or have strange colors during cutting.

A garlic-like (ozone) smell appears—this may indicate lens contamination causing beam refraction.

If the window lens on your Ray5 laser module becomes dirty or damaged, replacing it can help maintain engraving quality and protect the internal optical components. This guide walks through the exact replacement process for Ray5 laser modules while providing beginner-friendly explanations, maintenance tips, and troubleshooting advice.

Table of Contents

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

What This Guide Covers

This tutorial explains how to replace the window lens on a Ray5 laser module without changing the original procedure or sequence. It includes:

• Removing the laser protective cover
• Detaching the nozzle on 10W laser modules
• Removing the old window lens
• Installing the replacement lens
• Reassembling the laser module correctly

The guide is suitable for beginners and helps ensure safe maintenance and stable engraving performance.

Quick Answer

To perform a Ray5 laser window lens replacement:

1. Remove the laser protective cover.
2. For 10W modules, loosen the nozzle screws and remove the nozzle.
3. Unscrew the window lens counterclockwise.
4. Install the new lens.
5. Reattach the nozzle and pump connection port.

Always power off the machine before performing maintenance.

Why This Process Matters

The window lens is an important part of the Ray5 laser module. During engraving and cutting, smoke, dust, and debris can gradually accumulate on the lens surface. Over time, this contamination may reduce laser power efficiency and affect engraving precision.

A damaged or dirty lens can lead to:

• Reduced engraving quality
• Weak or inconsistent laser output
• Poor cutting performance
• Increased stress on internal optical components

Replacing the window lens helps maintain optimal engraving performance and protects the optical system from damage or debris.

Before You Start

Requirements

Before replacing the Ray5 laser window lens, prepare the following:

• Ray5 laser engraver
• Compatible replacement window lens
• M1.5 hex wrench
• Clean workspace
• Soft microfiber cloth

Follow official machine specifications or instructions.

Precautions

Before starting the replacement process, keep these safety guidelines in mind:

• Always power off the machine before maintenance.
• Disconnect the power supply before touching the laser module.
• Avoid touching the lens surface directly with your fingers.
• Work in a clean environment to prevent dust contamination.
• Handle the nozzle and lens carefully to avoid scratches or damage.

Proper handling helps maintain engraving quality and extends the life of the optical system.

Step-by-Step Tutorial

Step 1: Remove the Laser Protective Cover

Action

Rotate the pump connection port counterclockwise to detach it.

For 10W laser modules:

Use an M1.5 hex wrench to loosen the nozzle screws through the small hole under the dovetail slot, then carefully remove the nozzle.

Expected Result

• The laser protective cover is detached.
• On 10W modules, the nozzle is removed successfully.
• The window lens becomes accessible for replacement.

Important Notes

• Use the correct M1.5 hex wrench size to avoid damaging the screws.
• Loosen the screws gently and evenly.
• Keep small screws in a safe place during maintenance.

Removing the nozzle carefully helps prevent accidental damage to the laser module assembly.

10W

Step 2: Remove the Window Lens

Action

Unscrew the window lens by turning it counterclockwise.

Expected Result

The old window lens is removed from the laser module.

Important Notes

• Rotate the lens slowly to avoid cross-threading or slipping.
• Avoid applying excessive force.
• If the lens is dirty, handle it carefully to avoid spreading debris inside the module.

A damaged or contaminated lens may appear cloudy, scratched, or burned.

Step 3: Install the New Lens

Action

Place and secure the new window lens. Then reinstall the nozzle and reattach the pump connection port.

Expected Result

• The replacement lens is installed securely.
• The nozzle is properly reinstalled.
• The pump connection port is attached correctly.

Important Notes

• Ensure the new lens sits properly before tightening.
• Reinstall the nozzle carefully to maintain alignment.
• Follow official machine specifications or instructions.

Correct installation helps maintain stable laser output and consistent engraving quality.

Common Problems and Solutions

Tips for Better Results

• Clean the laser area regularly to reduce smoke buildup.
• Inspect the window lens periodically for scratches or residue.
• Avoid touching optical surfaces directly.
• Store replacement lenses in a dust-free container.
• Perform maintenance in a well-lit workspace for better visibility.
• Replace damaged lenses promptly to protect the optical system.

Regular laser module maintenance can improve engraving consistency and prolong machine lifespan.

Frequently Asked Questions

1. When should I replace the Ray5 window lens?

Replace the lens if it becomes dirty, scratched, cloudy, or damaged and starts affecting engraving quality.

2. Can a dirty lens reduce laser power?

Yes. Dust and residue on the lens can weaken laser output and reduce engraving precision.

3. What tool is needed for the 10W laser module?

An M1.5 hex wrench is required to loosen the nozzle screws.

4. Do I need to remove the nozzle on all Ray5 modules?

The nozzle removal step specifically applies to 10W laser modules.

5. What direction removes the window lens?

Unscrew the window lens by turning it counterclockwise.

6. Can I clean the lens instead of replacing it?

If the lens is only dirty, cleaning may help. If it is damaged or scratched, replacement is recommended.

7. Why is engraving quality still poor after replacement?

Check whether the lens is installed correctly and ensure the nozzle and pump connection port are properly reattached.

8. Is it necessary to power off the machine before maintenance?

Yes. Always power off the machine before performing any maintenance or replacement.

Final Thoughts

Replacing the window lens on your Ray5 laser module is an important maintenance task that helps maintain engraving quality and protect the internal optical system. By following the exact replacement procedure carefully, users can ensure stable laser output and consistent engraving performance.

Proper maintenance, careful handling, and regular inspections can help extend the life of your Ray5 laser module and improve long-term reliability.