In Rapid Prototyping, objects can be formed with any geometric complexity or intricacy without the need for elaborate machine setup or final assembly. They can be made from multi materials such as composites, and materials can be varied in a controlled fashion at any location in the object. So, the construction of complex parts can be reduced to a manageable, straight forward and relatively fast process.
There are three main Rapid Prototyping systems, depending on initial the
form of materials involved.
LIQUID-BASED RP SYSTEMS
The initial form of material is in liquid state and, by a curing process,
the liquid is converted into solid state; the system includes: 3D Systems’
Stereo lithography (SLA), Light Sculpting, Rapid Freeze and Two Laser Beams
SOLID-BASED RP SYSTEMS
The initial form of
material is in solid state, except for powders (wire, roll, laminates,
pellets); this system includes: Stratasys ‘Fused Deposition Modeling (FDM), 3D
Systems’, Multi-Jet Modeling System (MJM) and Pares lamination Technology (PLT)
POWDER-BASED RP SYSTEMS
The initial form of
material is powder; the system includes:
3D Systems’ Selective Laser Sintering (SLA), Precision Optical
Manufacturing’s Direct Metal Deposition (DMD) and Z Corporation’s Three
Dimensional Printing (3DP).
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