Knuckle tenderizer
thingiverse
This design originated on Grabcad by Acop Minasean, accessible at https://grabcad.com/library/305766. The concept has been around as a novelty kitchen gadget for quite some time now, leaving it uncertain if this is indeed Acop's original idea. To make the file compatible with various 3D printing software, I underwent significant effort to convert the .SLDPRT format into .STL, and I am now sharing it here for others to appreciate.
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