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Rapid
Prototyping Processes
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Rapid
Prototyping -- Photopolymer
Jetting
This process, developed by Objet Geometries,
is essentially an FDM process. A jetting
head slides back and forth along the
X-axis, like a line printer, depositing
a single-layer of photopolymer onto
the build tray. Immediately after building
each layer, UV bulbs alongside the jetting
bridge emit UV light, curing and hardening
each layer subsequently.
Objet Geometries, the pioneer of photopolymer
jetting, has drawn on over five years
of Rapid Prototyping experience in order
to radically improve the PolyJet™
technology. This unique jetting solution
delivers top-quality, accurate, clean,
smooth and detailed prototypes, at high
speed and on an easy-to use platform
2nd generation PolyJet™ accurately
jets at 600 x 300 dpi, in super-thin
layers, now down to just 16 microns
(0.0006 inches).
Objet’s newly designed jetting
block uses 8 heads and sophisticated
SW tools which enable the 8 heads to
work in perfect harmony, synchronously
jetting identical amounts of resin onto
the tray. The result - a perfectly smooth
and even surface.
Two different materials are used for
building: one material is used for the
actual model, while a second, gel-like
photopolymer material is used for support.
When the model is completed, a water
jet easily removes this support material.
