Easy-Connect Pipe Fitting

An open-source parametric design of a 3D-printable easy-connect pipe fitting that offers compatibility with different dimensions and materials of pipes available on the market. Custom pipe fittings were 3D printed using a RepRap-class fused filament 3D printer, with PLA, PETG, ASA, and TPE as filament feedstocks for validation. The 3D-printed connectors underwent hydrostatic water pressure tests. All the printed parts passed numerous hydrostatic pressure tests. PETG couplings can tolerate up to 4.551 ± 0.138 MPa of hydrostatic pressure, which is eight times greater than the highest standard water pressure in the residential sector.
For the OpenSCAD see: https://osf.io/fqjxe/
For more info see: Fini, A.T.; Brooks, C.K.; Romani, A.; Straatman, A.G.; Pearce, J.M. Parametric Design of Easy-Connect Pipe Fitting Components Using Open-Source CAD and Fabrication Using 3D Printing. Journal of Manufacturing and Materials Processing. 2025, 9, 65. https://doi.org/10.3390/jmmp9020065
And more development: https://www.appropedia.org/Parametric_Design_of_Easy-Connect_Pipe_Fitting_Components_Using_Open-Source_CAD_and_Fabrication_Using_3D_Printing