Piece by Piece (IMAGE) DOE/Sandia National Laboratories Caption Samuel Leguizamon, left, watches as Alex Commisso stretches 3D material that they printed at Sandia National Laboratories, using Selective Dual-Wavelength Olefin Metathesis 3D-Printing, or SWOMP. Credit Craig Fritz/Sandia National Laboratories Usage Restrictions with courtesy License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.