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Here I will show you how to make a hydraulic arm that i had to make for my grade 9 tech class. Not i have to post this instructable so that i don't lose a crap-load of my marks. Here you go Mr. Arding! Now, let's give Mr. Arding a warm welcome.

Step 1: The Base

Here i will show you how to make the base.

Step 2: Arm 1

This is the arm that does no move and holds onto the base to support the claw and the second arm.

Step 4: Arm 2

Here we will make the second arm. This is the arms that moves.

Step 5: Connecting Arm 2 to Arm 1

Here we will connect the first arm to the second arm.

Step 6: Arm 2 Hydraulics

Picture of Arm 2 Hydraulics
Here we will connect the hydraulics from arm 2 to the soon to be claw.

Step 7: Claw

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Here we will make the most important part of the arm. The claw. You can modify it easily to pick up anything you want.

Step 8: Putting it all together

Here we are at the final step! Putting everything together to make it work!
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