Date of download: 10/17/2017 Copyright © ASME. All rights reserved. From: Printing Three-Dimensional Electrical Traces in Additive Manufactured Parts for Injection of Low Melting Temperature Metals J. Mechanisms Robotics. 2015;7(2):021004-021004-10. doi:10.1115/1.4029435 Figure Legend: The complete process of conversion of a single trace from circuit board cad software (EAGLE PCB) to the equivalent 3D printed part with channels ready for injection: (a) the EAGLE PCB representation of a single trace of the circuit, (b) the extracted tree representation of the trace starting at the injection point and ending at each component pin location, (c) a plot of the extracted tree with layer depths and channel diameters specified, and (d) the conversion of the circuit trace tree representation to STL format using the programmatic solid modeling language and software openscad