# Scaling acoustic directional couplers using 3D printing

> 2015 master's thesis by Marcus Scott Glengarry MacDonell at University of Waikato

**Wikidata**: [Q112909761](https://www.wikidata.org/wiki/Q112909761)  
**Source**: https://4ort.xyz/entity/scaling-acoustic-directional-couplers-using-3d-printing