Thermopolymer wax patterns in an RP machine

making the interface between the 3D-CAD system and the rapid prototyping system. For example the CAD data may be converted to the STL (Standard transformation format) file format 

slicing the STL file into thin cross-sectional layers 

The advantages of Rapid Prototyping, particularly for complex forms, include  

Liquid - solid Polymerisation by local UV exposure of a photosensitive resin Photosensitive resins Acrylates, epoxydes shrinkage and deformations model needs supports 

Solid - solid Contours of a layer are cut out from a foil Paper, metals, polymers no supports consumption of base material 

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