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Fused deposition modeling
Fused deposition modeling (FDM) is an additive manufacturing technology commonly used for modeling, prototyping, and production applications. It is one of the techniques used for 3D printing.
FDM works on an "additive" principle by laying down material in layers; a plastic filament or metal wire is unwound from a coil and supplies material to produce a part.
The technology was developed by S. Scott Crump in the late 1980s and was commercialized in 1990.〔http://rpworld.net/cms/index.php/additive-manufacturing/rp-rapid-prototyping/fdm-fused-deposition-modeling-.html〕 The term ''fused deposition modeling'' and its abbreviation to ''FDM'' are trademarked by Stratasys Inc. The exactly equivalent term, ''fused filament fabrication'' (''FFF''), was coined by the members of the RepRap project to give a phrase that would be legally unconstrained in its use. It is also sometimes called Plastic Jet Printing (PJP).
== History ==
Fused deposition modeling (FDM) was developed by S. Scott Crump in the late 1980s and was commercialized in 1990 by Stratasys. With the expiration of the patent on this technology there is now a large open-source development community, as well as commercial and DIY variants, which utilize this type of 3D printer. This has led to two orders of magnitude price drop since this technology's creation.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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