Traditional Cast Metalwork Meets Modern Technology. We are currently working with the Precision Engineering and Manufacturing Gateway (PEM), based in IT Sligo to explore the use of laser scanning, 3D modelling and 3D printing for use in pattern making for metalwork casting (cast iron, bronze, brass, aluminium) and we are looking from something suitable to test the process. Traditionally the patterns used for sand casting would have be made from wood either by hand carving or