Algodoo

An arm that has a clamping hand with 3 toothy clampers, a wrist, an elbow and a shoulder, and then there's a little arm telling you how to move it all! And one cool thing for my scenes, the sim frequency can be 100! WOO!

From my tests, I figured out it can hold about 500Kg when it's straightened out, pointing toward the ground.

I planned on having two of these together like my spring powered legs, and maybe putting them on my legs, but it's got too many pieces and variables and stuff, so that'll be for future me to worry about. Right now there's one arm that can move almost as far as a human can in every range (except for 3-d, durr).

The only places it can't reach are behind it very far, and above the shoulder. The spring muscles don't work quite like human muscles, and if the arm moved any higher than the shoulder, it'd get screwed up.

Oh, one last thing that I think is pretty cool. When you're moving the elbow and shoulder, hold down the control key to bend the joint in whatever direction you want, instead of just tapping the key like for the hand and wrist. You'll see, don't worry.

That's about it, so have fun with it and please rate and comment. (and download, but you already knew that)

Update!

1. Added a challenge with a prize at the end! See if you can beat the challenge. But be warned, it is very difficult if you haven't practiced with the arm. It was even difficult for me, and I made the gosh darn thing! But don't worry, it is possible to beat it.

2. The instructions are grouped together, so you can now easily get rid of them if you want to.