Make a spring

I wanna to make a spring in GMod, which looks like the ropes or hydraulics that can connect two stuffs. Is there any way to do that?

I have already modeled one by 3ds Max and uploaded it into game. But I can not make it compressed or stretched.

Thanks!

Hmm so you want to make a spring entity that propels you upwards? I like the idea. If you are making the model then the best solution would be to animate it so that it can have different levels of compression and then just play an animation or moving up and down the frames. (if that made sense)

If creating an animation is out of the question the only other way I see would be to scale the model clientside so that it looks shorter or taller but this probably won’t look good.