Hi curious; I watched the video, but that stuff is over my head. I just moved from Eugene OR to a small town and need time to meet new people . I hope to meet somebody who may be interested in my ladybug lady story and be willing to help me with that. Somebody more left brain who loves to learn the specifics of 3d printing. I'm presently working on other projects, in particular about Ubuntu-Contributionism, which means creating community. About the Sahara video: I remembered that there is a member of the mineral kingdom, called Fulgurite, that is created when lightning hits the desert sand. Isn't that interesting?