Rhombicuboctahedron (Inspired by Matt Parker)
thingiverse
After watching this video by Matt Parker, www.youtube.com/watch?v=yNQs_Qj46yc&t=323s I decided, you know what, I want one of those, and so, I designed it in Fusion 360. This is completely scalable, the angles are 45 degrees so no support should be needed, though depending on how good your bed, you may want to use a brim for better adhesion.
Download Model from thingiverse
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