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.