The LRDG Chevy was my first encounter with Polylactic acid (PLA), the material generally used for hot extrusion 3D printing. The first thing to notice when the print was complete, was that each curved or sloping surface was covered in "contour lines". This a result of the process which lays down layers to build up the item. The second thing was that the PLA material was very hard and brittle and, from a modelling perspective, very difficult to work with. Also the printed object was filled with a grid of plastic. It had to be filled and smoothed, hollowed out and then modified ready for casting. After the long process a fine model was produced. Painted green to match my other Dinkys.