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 3: Connecting Arm 1 to Base
Here we will connect what we have to the base.
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
Here we will connect the hydraulics from arm 2 to the soon to be claw.
Step 7: Claw
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!