Sometimes I get an idea to build something mechanical and I would like to simulate it first.
Basic things - like gears and stuff I don't know the words of.
I have made a mspaint sketch that shows approximately what I want; it is simulating that a piece of wood gets pushed into another piece of wood and that causes an object to move on a slide.
When the red wood is pushed into the blue wood both objects should move but I've only badly painted one:
I need a program to simulate such stuff- any ideas?