tetrahedron screw-puzzle by George Hart
thingiverse
This is a remix of George Hart's tetrahedron screw-puzzle: a) chamfered outside edges and flattened vertices - to make it easier on the fingers; b) increased wall thickness from 5mm to 6mm and introduced a blind hole - to make the thing less likely to break Print Settings Printer Brand: Ultimaker Printer: Ultimaker 2 Rafts: No Supports: No Resolution: .1 Infill: 30 Notes: Used enclosure to keep printed layers warm and to make vertical piece stronger How I Designed This Recreated from scratch in PTC Creo
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