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Allen has published 8 free 3D printable models with a total of 3,777 downloads and 133 likes. Most popular categories: SOLIDWORKS 2011, STL, SOLIDWORKS 2011, AutoCAD, Autodesk Inventor, CATIA, Pro/Engineer Wildfire, SOLIDWORKS, STEP / IGES, STL, STEP / IGES, Other, Autodesk Inventor 2012, STEP / IGES, STL. Models available on MakerWorld, Printables, Grabcad. Active since 2011.