You’ve probably heard the term 3D
printing before, but what exactly is it? Well it’s as simple as the name
suggest: a print in three dimensions. Everyone is familiar with printing two
dimensional documents, and 3D printing is a somewhat similar process. So how
does it work?
Well, first of all, before
anything can be printed, there needs to be a digital form of it. Like when
you’re printing a document or picture, you need to first open the file on your
computer or mobile device and then select the command to print. That’s the same
way that 3D printing works. First, a digital model of the object is created in
3D on a computer. Once ready to print, the computer slices the model up into 2D
layers for printing. A command is sent to the printer and the printing begins.
When printing a 2D file, the
printer deposits a layer of ink onto the desired paper or other material. 3D
printers also deposit a material, but the 3D printing uses additive
manufacturing for the printing process, which means that the printer deposits
layer upon layer of material until the final object is created. The final
object is the physical counterpart of the digital model.
There is a wide variety of
materials that can be used for 3D printing which range from resins to plastics
to metals. The material that is used depends on your needs also and on the type
of printer that you’re using. Some materials may be long lasting, while others
may be sturdier; you would decide which material would be suitable for the
object you have in mind.
The early stages of 3D printing
would consist of printers valuing over $200,000 but as the technology advances,
the rates go down. You can now get a 3D printer for under $2000, which still
isn’t cheap but is less than 1% of earlier printers! With a decline in price
with time, 3D printers could be as common as laser printers in the future.

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