Here are instructions for a special element. A while ago I made a really simple stepper lift in a Ball Machine called Millenium and I thought it would be a fun idea to turn it into an element. It works 99% of the time and is easy to build. Making this element longer the it already is is not recomended, it might cause too much friction. You can always watch the video to see it in action.
If there are any problems/ question feel free to ask me in the comments below.
Thanks for watching/ building,