I wrote a simple Inverse Kinematics object in Flex that I wanted to prototype before making a robotic arm project I’m going to work on. It has some instability issues (still needs an integrator), but it’s nifty. Click and drag on the examples to move the control point.

Robo Arm Test

I also found that making a ‘difficult to solve’ position makes for some interesting instabilities, so I made this ‘tail’ example to show that off.

Tail Flick Test