ABS (Acrylonitrile Butadiene Styrene) plastic is one of the most popular materials ordered through T3NDER. The raw material is usually bought as a reel of coloured ABS. The filament of ABS is fed through to the printer head, at which point the plastic is melted. A thin layer of melted plastic is deposited along a set profile, it then sets hard and another layer is deposited on top. This continues until your 3D model is complete.
ABS is one of the cheaper materials available due to the availability and cost of the 3D printers. However because of the way the layers are built on top of one another without melting the layer below, the surface finish can be poor and may require hand finishing.