A NEW WAY OF PRINTING (IMAGE) DOE/Sandia National Laboratories Caption SWOMP or Selective Dual-Wavelength Olefin Metathesis 3D-Printing uses two wavelengths of light simultaneously to change the way certain materials are 3D printed. Credit Graphic Courtesy: Samuel Leguizamon 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.