Handheld Printer (image) University of Toronto Faculty of Applied Science & Engineering Share Print E-Mail Caption The handheld 3D skin printer developed by U of T Engineering researchers works like a paint roller, covering an area with a uniform sheet of skin, stripe by stripe. Blue dye was used for this photo shoot for visibility purposes. Credit Daria Perevezentsev / U of T Engineering Usage Restrictions None Share Print E-Mail 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.