Here are instructions for an element that I call the Infinity Circle. It works really well and is easy to build. Now I just want to clarify that you do need 3 Micro Knex pieces to build this element (see step 1). And you'll need to cut some tubing pieces as well. You can always watch the video to see it in action.
If there are any problems/ questions feel free to ask me in the comments below.
Thanks for watching/ building,