Floating Bennu Comet Magnetic Display
Description
I sliced the NASA provided model of the Bennu Comet that OSIRIS-REx visited in two halves. I added a hole for a 12mm Neodymium magnet in the top half and a hole for a thread in the bottom half so that you can make a levitating model with the Magnetic Levitation Toy base https://www.thingiverse.com/thing:4441080 Print both halves of the comet at 60mm wide, and the Magnetic Levitation Base at 200%. (184.2443mm wide) None of these files require supports, but I do recommend Adhesion (brim). I printed the base at 20% infill and the two halves of the comet at 10%. Use a 12mm Neodymium magnet in the comet, and at least one 12mm (or larger) in the holder at the top of the magnetic base. I actually used an additional Hematite magnet I had lying around for some additional magnetic pull. I tied a small washer to both ends of the black thread. One 10mm washer fit inside the magnet hole in the top (so the two halves would fit flush when glued together) and one 10mm washer in the base, and then hot glued that washer in place. Get the washer and string in place inside the comet before gluing the two halves together. It takes a little trial and error to get the "sweet spot" of length of thread and then tie off the washer and glue it into place in the base. The distance between the bottom of comet and the base is around 85mm on my model. Your mileage may vary. Follow along the retrieval of material from the surface of the comet at https://science.nasa.gov/mission/osiris-rex/
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