3D printing is a process of making three-dimensional solid objects from a digital file. It permits designers to envision the object in 3D. It is thus a prototyping process in which a real object gets created from a 3D model. Now a days it become very useful for almost every fields.
Now, for creating required object firstly it made object’s virtual design in a CAD (Computer Aided Design) file using a 3D modeling program or with the use of a 3D scanner (to copy an existing object). A 3D scanner makes a 3D digital copy of an object and for doing; it uses suitable technology among all.
There are lot more things to know about 3D printing technology before knowing how it is done.
However, for now, if you want to know about the 3D printing technologies, which are commonly used then read on….
It is the first commercial 3D printer and one of the most expensive technologies which was invented by Charles Hull in 1986. It works as Liquid Based 3D Printing technology and popular as Stereolithography. Due to its fine surface finish and accuracy, it is very useful for jeweler industry. The printed Objects can’t be used straightforwardly because before using it needs to go through post-curing operation to strengthen the parts.
Selective Layer Sintering (SLS):
It is Powder Based 3D Printing technique, which was developed by Dr. Carl Deckard and Dr. Joe Beaman at the University of Texas at Austin. It makes its entry in the mid-1980s, under sponsorship of DARPA. It is best known for snap-fit applications. As here powder is used for printing the parts; it needs special care while handling these machines because it wants a special environment to work.
Fused Deposition Modeling (FDM):
It is Plastic Filament Extrusion based technology, which was developed in late 1980s by Mr. Scott Crump and commercialized in 1990 by Stratasys. It is used for creating 3D prototypes by heating and extruding a filament of plastic material. Because of its price its broadly used in 3D Printing technique. For making each part stronger, robust or preparing functional testing applications, this typical FDM uses real engineering grade thermoplastics. It enables you to build parts directly into ABS, polycarbonate, nylon and many other materials. Due to its simplicity and ease of use; these machines prefers as office friendly machines and could be installed in Design office.
PolyJet / InkJet 3D Printing:
This is the only technology that can help us to print multi-materials and multi-colors in a single build. It works by jetting state of the art photopolymer materials in ultra-thin layers (16µ) onto a build tray layer by layer until the part is completed. It facilitates us in printing rigid parts, Transparent Parts, Rubber like / Flexible parts required for prototyping applications.