Converting two way linear motion into one way rotation

[Anonymous]

I have recently come across this mechanical animation.

1) How would this beveled, helical spiral be 3D printed?
The video was made in Autodesk Inventor.

2) Do you see a way to make the return of the red 'followers' silent, and not make a
constant 'clicking' noise? Perhaps there is a way to lift the red followers up off of the ridges as
they alternately return?

3) This Spring Toggle Mechanism could work. Imagine the red follower roller cams at the ends of the spring toggle mechanism. Here is a look at the follower cam: http://www.ikont.co.jp/eg/product/needle/ndl0602.html

Would someone be willing to attach these two separate animations into one?

Thank you.

https://www.youtube.com/watch?v=4ziGR9ggO60&feature=youtu.be