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Tessellate
To represent CAD surfaces in polygonal format.
Trapped Volume
During building, a volume of resin within the part that cannot flow out to the surrounding liquid.
Triangle normal
A line perpendicular to a triangle starting at its center and pointing away from the mass of the part.
Triangle normals are used to differentiate between inside and outside surfaces of a solid.
Ultraviolet (UV)
Electromagnetic radiation having a wavelength shorter than visible light, (i.e., below 390
nanometers).
Vat
On older SLA systems, the metal container inside the process chamber in the SLA system that
holds the resin in which the object is formed. On the Viper Pro SLA system, this container is called
the RDM.
Vector
A directed line segment represented by starting and ending coordinates as defined in a
stereolithography slice or build file.
70696 Revision 1C 27-Aug-08