3D Printed Laser Lens Cap for ComMarker B4 60w Galvo Fiber Lens and Other Compatible Lenses – PETG Safety Cover with STOP Sign Charm

🔧 Overview
Protect your investment and your laser workflow with this custom designed laser lens cap modeled after the ComMarker B4 60w Galvo Fiber Lens. If you’ve ever accidentally fired your laser with the factory cap still on (yep… been there, melted that), this is the replacement you wish you had the first time.
This upgraded cap is 3D printed in durable PETG, designed for daily use, and includes a bright red STOP sign warning charm so you never forget to remove it before lasering again.
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🔥 Why This Lens Cap?
✔ Perfect Fit for ComMarker B4 60w Galvo Fiber Lens
Modeled directly after the original lens cap dimensions for a snug, reliable fit.
✔ PETG > PLA — Here’s Why
This cap is printed in PETG, not PLA, because:
•    Higher heat resistance – PETG won’t warp or deform as easily in warm shop environments.
•    Greater impact strength – PETG is tougher and less brittle than PLA.
•    Better longevity – PETG stands up to repeated use, threading, and handling.
•    More chemical resistant – Great for workshops where oils, cleaners, or fumes are present.
📏Lens Diameter at the widest point 64mm or 2.52" - modeled after the lenses for the ComMarker B4 60w Galvo Fiber Lens but can fit other lenses of the same size. 
⚠️PLEASE ENSURE TO MEASURE YOUR LENS BEFORE PURCHASING. NO RETURNS ACCEPTED
✔ Built In Safety Reminder
A small red STOP sign jewel hangs from the cap—eye catching, lightweight, and impossible to ignore. It literally says STOP, reminding you to remove the cap before firing up your laser.
✔ The “Oops, I Burned Mine” Replacement:
If you’re here because you forgot to remove the factory cap, hit “Start”, and watched your laser burn a perfect hole straight through it…
…then trust me, this is the replacement you need. It’s durable, affordable, and designed by someone who made the exact same mistake.
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🎨 Material & Finish
•    Material: PETG (strong, semi flexible, heat resistant)
•    Color: Black cap with red STOP sign charm
•    Finish: Slight satin sheen typical of PETG prints