How to Make Hydraulic Powered Robotic Arm from Cardboard

In this video I show you how to make robotic arm from cardboard, it’s quite fun to plaw with. Especially by moving coca cola cans.

You need:

cardboard, 8 syringes with rubber piston, old battery, 4 pipes, popsicle sticks, glue, water and patience



Also coca cola empty can.

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