Technology No. 5: SLS
What it is: Selective Laser Sintering
Inventors: Dr. Carl Deckard and Dr. Joe Beaman developed and patented at the University of Texas at Austin. Startup company DTM, purchased by 3D Systems in 2001
Materials: Powder materials including polymers such as nylon (neat, glass-filled, other fillers); polystyrene; metals (steel, titanium, alloy mixtures); composites; green sand
Process: High-powered laser fuses small powdered particles into three-dimensional objects. Cross sections are scanned, then layers are fused together. Base lowers as each new layer is added.
Price Range: Up to $250,000
Systems Sold by: EOS and 3D Systems