Under Water Laser!

Introduction: Under Water Laser!

Today I will show you how to make any laser water proof!! Amazingly its very cheap and easy to do!

Step 1: Step 1: Materials

To do this you need:
-a laser pointer
-saran wrap
-heat shrink tubing
-a lighter

Step 2: Step 2: Get the Saran Wrap

Measure out a piece of saran wrap about a foot by a foot. You want it so that there is at least 2 inches showing at the end of the laser and half a foot on the top and bottom of the laser if you put the laser in the middle.

Step 3: Step 3: Wrapping

Place the laser so that there is one inch of wrap below it and almost an foot above it. It also has to be centered so that there is about 2 inches or so on each side. fold the smaller bottom part of the wrap over the laser. Then fold the 2 inch side sections on each side inward so that the whole wrap is the width of the laser. You want to make sure the part over the laser hole is flat so it will shine a stright beam. Then roll and wrap the laser tightly in the wrap but not tight enough to press the on button down.

Step 4: Step 4 (optional): Heat Shrink Tubing

Take the heat shrink tubing and place the laser inside it. Cut off any extra piece hanging over the edge but becareful not to cut the wrap. After aplying it use the lighter to heat it so it shrinks over the laser and secures it. I did this later and forgot to take pictures im very sorry about that.

Step 5: Step 5: Test It

Fill your sink with water and try it out! Its so cool! You can take it with you in the pool and shine it across to your friends! Have fun!

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    3 Discussions


    8 years ago on Introduction

    Awesome... now i can point lasers at people from under water..