Algodoo

How do you control the spring with keys? I'm very curious.

Thyme scripting. Keys control the axle. The axle is connected to the circle which is connected to the spring. Circle rotation is converted to spring length change and is passed from the circle to the spring. Increase the motor speed to increase slide speed.

I think there is a lot simpler way of doing this, which I may eventually do to this scene or in future scenes.

Thanks you for your answer.