Amazing 3D printer

3D printing manufacturing is a process of making three dimensional solid objects from a digital file. The creation of a 3D printed object is achieved using additive processes.
In an additive process an object is
created by laying down successive
layers of material until the entire
object is created. Each of these
layers can be seen as a thinly
sliced horizontal cross-section of
the eventual object.

How does 3D Printing work?

It all starts with making a virtual
design of the object you want to
create. This virtual design is made
in a CAD (Computer Aided Design)
file using a 3D modeling program
(for the creation of a totally new
object) ór with the use of a 3D
scanner (to copy an existing
object). This scanner makes a 3D
digital copy of an object and puts
it into a 3D modeling program.
To prepare the digital file created
in a 3D modeling program for
printing, the software slices the

final model into hundreds or
thousands of horizontal layers.
When this prepared file is
uploaded in the 3D printer, the
printer creates the object layer by
layer. The 3D printer reads every
slice (or 2D image) and proceeds
to create the object blending each
layer together with no sign of the
layering visible, resulting in one
three dimensional object.

Methods and technologies of
3D Printing
Not all 3D printers use the same
technology to realize their objects.
There are several ways to do it
and all those available as of 2012
were additive, differing mainly in
the way layers are build to create
the final object. Some methods use
melting or softening material to
produce the layers. Selective laser
sintering (SLS) and fused
deposition modeling (FDM) are the
most common technologies using
this way of printing. Another
method of printing is to lay liquid
materials that are cured with
different technologies. The most
common technology using this
method is called stereolithography.