Introduction: How to Make a Cardboard Safe With Combination Lock
In this video we will show you how to make fully functional Safe with a Combination Lock from Cardboard . The Safe can only be opened using a unique Combination of numbers . All the needed materials and instructions that you will need are shown in the video.
Step 1: Materials.
1-cardboard of area 1 m^2 .
Step 2: Watch the Video
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