2.9FUSED DEPOSITION MODELING IFDM)FUSED DEPOSITION MODELING (FDM) WA...

4.2.9

Fused Deposition

Modeling

IFDM)

Fused deposition modeling (FDM) was developed by Stratasys Inc. and is executed

on machines called the FDM 1650,

2()(M),

or

8()(M)

series. Figure 4.9 shows that the

material is supplied as a filament from spool. The overall geometry and system are

reminiscent of icing a cake. The filament melts as it flows through a heated delivery

head and emerges as a thin ribbon through an exit nozzle. The nozzle is guided

around by CNC code. and the viscous ribbon of polymer is &fadualJ.y~,uiJtup from a