Procedurally generated holiday decorations for 3D printing
More information at http://www.rotormind.com/blog/2020/FreeCAD-Sputnik-Ornaments
For printing, use the top12spikes.stl file and print two of them. I used .15 mm slicing with supports (needed for the dingbats). Each half has two alignment holes on either side of a hanging hole drilled all the way through. By cutting small bits of 1.75mm printer filament and inserting them in the alignment holes you can make sure both halves line up perfectly. You can glue the two halves together or just rely on gravity.
There is a small space in the center for a knot, or the central hole goes all the way through. You can then hang them by inserting a string or monofilament through the central hole, or they stand nicely on their bottom tripod as a desk or table ornament.
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