File:Ospipefittings.jpg

3D printed pipe fitting parts for the test: (a) 10mm diameter pipe fitting parts made with PLA (from top to bottom: pipe fitting, nut, and assembled parts with the TPE gasket); (b) 10 mm diameter pipe fitting parts made with PETG (from top to bottom: pipe fitting, nut, and assembled parts with the TPE gasket); (c) 10 mm diameter pipe fittings made with ASA (from top to bottom: pipe fitting, nut, and assembled parts with the TPE gasket); (d) 10 mm (top) and 20 mm (bottom) gaskets made with TPE; and (e) 20 mm diameter fitting parts made with PETG (from top to bottom: pipe fitting, nut, and assembled parts with the TPE gasket). From a paper : Design, Manufacturing, and Economic Analysis of Parametric Open-Source 3-D Printed Easy Connect Pipe Fittings -- by Abolfazl Taherzadeh Fini, Cameron K. Brooks, Alessia Romani, Anthony G. Straatman and and Joshua M. Pearce