WPI Microthread Extruder (IMAGE) Worcester Polytechnic Institute Caption This computer-controlled system developed by biomedical engineering faculty members and students at Worcester Polytechnic Institute (WPI) is capable of continuous extrusion of microthreads with a range of diameters and quantities. Credit Worcester Polytechnic Institute Usage Restrictions None License Licensed 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.