This process was originally developed by Suman Das, a former graduate student of Beaman's and now a Professor of Mechanical Engineering at the Georgia Institute of Technology.ģD Systems continues to sell SLS and stereolithography machines and remains the industry's revenue leader. EOS continues to make SLS machines and is now focused on selective laser melting, a similar technology that focuses on making metal parts. The biggest foreign competitor, German manufacturer EOS GmbH, sold its stereolithography business to 3D Systems in 1997. Their main US competitor Stratasys, Inc., inventors of FDM, has more unit sales and a larger installed base, but a smaller market than 3D Systems' technologies. Now owning both technologies, 3D Systems currently controls the largest share of the additive manufacturing market worldwide. The majority of 3D printers one will find within a home or an office setting are based on the SLA or FDM/FFF processes, as these technologies are currently cheaper and easier to implement within a machine.īefore acquiring DTM in 2001, 3D Systems was the biggest competitor of DTM and SLS technology. Since that time numerous other 3D printing technologies have been developed, such as Fused Deposition Modelling (FDM)/ Fused Filament Fabrication (FFF), PolyJetting and others, all of which rely on layer-by-layer fabrication and are based on a computer code fed to the printer.
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