Nice animation of what happens inside a 3D printer.

EOS is the world leader in laser sintering. Laser-sintering is an additive layer manufacturing technology and the key technology for e-Manufacturing. It enables the fast, flexible and cost-effective production of products, patterns or tools directly from electronic data. The process accelerated product development and optimizes production processes. EOS thus sets the standard for developing intelligent e-Manufacturing solutions for industrial applications.

EOS sells systems in 32 countries and has completed its business year 2009/2010 with a turnover of 64 million euros. The company employs 300 people, including 250 at its headquarters in Krailling (near Munich). The customers come from diverse industries such as automotive, electronics, aerospace, medical, telecommunications, household goods and consumer goods.