Revolutional 3D Printable IDSA Lapel Pin?
it's my first model for this challenge.
Availible in : d=1in, d=2in & d=3in.
Waiting for your advices and suggestions.
STL (Stereolithography, filesize: 34.4 MB), IGE (IGES, filesize: 34 MB), SLDPRT (SolidWorks, filesize: 28.6 MB)