Instructables
The instructions below is for a design of a Periscope made from poster board or cereal box for the body, and the mirrors are cut from ordinary CDs or DVDs.

What you are going to need for this are 1.)Some old CDs or DVDs, 2.) Cereal box or any kind of cardboard 3.) Some tape, X-acto knife or any sharp blade to cut the CDs/DVDs.

Step 1: Cut the mirror

Picture of Cut the mirror
The proper way to cut the CDs is with a vice as shown. Each CD makes four mirrors. Just keep bending the CD slightly while scoring and it will cut/break clean pretty quickly. If you forget to keep scoring as you bend, the CD will shatter and ruin the reflective surface.


Warming the CD up first with a hairdryer for 2-3 minutes will prevent the CD from shattering.

Step 2: Cut Out The Periscope Body

Picture of Cut Out The Periscope Body
periscpBody.gif
Click and drag the 2nd image below to your desktop so you can print out the body of the periscope.

Print the image scaled to 77%

(You are going to want it small because of the size of the mirrors. If you have bigger mirrors, then you can print out the patterns at 100% scaled.)

Rough cut (bubble cut) around the solid lines and stick 4 tape "doughnuts" to the corners of the non-print side. Tape the Pattern Onto the Cardboard and Cut out on the Solid Outside Lines. Keep the pattern taped on until you have cut and folded on the lines.

Step 3: Cut out Triangle Pattern

Picture of Cut out Triangle Pattern
This is the pattern where the mirrors will go on.

You are going to have to print out Two of the patterns below for the mirrors.

(Follow the same steps to print out the triangle pattern.) Scale to 77%.
 
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