Title: 9 Essential Types of 3D Printers or 3D printing technologies
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2INTRODUCTION
- As 3D printers are become more affordable and
versatile, they are destined to disrupt multiple
industries. Here's what you need to know about
this quickly accelerating technology. - The world of 3D printing is exciting. With more
affordable machines, creative entrepreneurs,
innovative start ups, and new materials, the
industry is rapidly evolving. - Since the invention of the 3D printer in 1983 by
Chuck Hull of 3D Systems, companies have popped
up all over the globe, attempting to make the
most innovative machine. - Now there are 9 types of essential 3D printers
available, which are very popular nowadays.
33D Printing Technologies / Types of 3D Printers
1. FDM (Fused Deposition Modelling) 2. SLA
(Stereo lithography) 3. DLP (Digital Light
Processing) 4. SLS (Selective Laser Sintering) 5.
SLM (Selective Laser Melting) 6. EBM (Electron
Beam Melting) 7. LOM (Laminated Object
Manufacturing) 8. BJ (Binder Jetting) 9. MJ
(Material Jetting / Wax Casting)
4 Fused Deposition Modelling
- FDM is the most common 3D printing method used
in desktop 3D printing. Thermoplastic filament is
heated and extruded through an extrusion head
that deposits the molten plastic in X and Y
coordinates, while the build table lowers the
object layer by layer in the Z direction. - Effectively, the object is built from the bottom
up. If an object has overhanging parts, however,
it will need support structures that can
be removed after the printing is finished. - This type of 3D printers is a cost-effective means
for product development and rapid prototyping in
small business and education sectors since its
capable of fabricating robust parts reliably and
quickly.
5 Stereo lithography
- SLA has the distinction of being the oldest of
the 3D printing technologies, first invented by
Chuck Hull in 1983. - SLA works by exposing a layer of photo sensitive
liquid resin to a UV-laser beam so that the resin
hardens and becomes solid. Once the laser has
swept a layer of resin in the desired pattern and
it begins to harden, the model-building platform
in the liquid tank of the printer steps down the
thickness of a single layer, and the laser begins
to form the next layer. Each layer is built on
top of the preceding one. - SLA creates smooth surfaced objects with extreme
detail, and its increasingly popular in
industries like jewelry and cosmetic dentistry
for creating cast able moulds.
6 Digital Light Processing
- Digital Light Processing (DLP) and Stereo
lithography have a lot in common. Both types of
3D printers use liquid photopolymers. You might
have heard of these resins. DLP and SLA
printers cure them by applying light to it. SLA
does that with a laser, DLP with a special
projector. - DLP technology was invented in 1987 by Larry
Hornbeck of Texas Instrument and became extremely
popular in projectors. DLP uses a
computer-controlled, micro-mirror grid, laid out
on a semiconductor chip. These tiny mirrors tilt
back and forth. When a mirror is tilted, it
reflects light, creating a bright pixel. - The technology is used in movie projectors, cell
phones, and also for 3D printing. One of the
benefits for 3D printing is its speed You can
print layers in an instant with this type of 3D
printer.
7Selective Laser Sintering
- SLS is similar to SLA, but the key difference is
that this type of 3D printer uses powdered
material in the build area instead of liquid
resin. A laser is used to selectively sinter a
layer of granules, which binds the material
together to create a solid structure. When the
object is fully formed, its left to cool in the
machine before being removed. - SLS is widely used for product development and
rapid prototyping in a wide range of
commercial industries, and also for limited-run
manufacturing of end-use parts. - The materials used in SLS can range from nylon,
glass, and ceramics to aluminium, silver,
and even steel.
8Selective Laser Melting
- SLM is sometimes regarded as a subcategory of the
SLS 3D printer type, where SLM uses a
high-powered laser beam to fully melt metallic
powders into solid three-dimensional parts. - Typical materials used are stainless steel,
aluminium, titanium, and cobalt chrome. For
applications in the aerospace or medical
orthopaedics industry, SLM is used to create
parts with complex geometries and thin-walled
structures, with hidden channels or
voids. Elsewhere, as in the video above, its
been used to fabricate gas turbines for the
energy industry.
9Electron Beam Melting
- In contrast to SLM, the EBM technique uses a
computer-controlled electron beam under high
vacuum to fully melt the metallic powder at high
temperatures up to 1000 C. - This type of 3D printer can use metals like pure
titanium, Inconel718, and Inconel625 to
fabricate aerospace parts and medical implants.
But while the 3D printer technology is exciting,
its currently very slow and very expensive.
10 Laminated Object Manufacturing
- LOM uses layers of adhesive-coated paper, plastic
or metal laminates, which are fused under heat
and pressure and shaped by cutting with a
computer controlled laser or knife. This is
sometimes followed by machining and drilling. The
3D object is created layer-by-layer, and after
the excess material is cut away, the object can
be sanded or sealed with paint. - Though the dimensional accuracy of this 3D
printer type is slightly less than SLA or SLS,
LOM is one of the most affordable and fastest 3D
printing methods available to create relatively
large parts. It also allows for full-colour 3D
printed objects.
11 Binder Jetting
- Binder Jetting is an additive manufacturing
process. This type of 3D printer uses two
materials a powder based (often gypsum) material
and a bonding agent. The agent acts as an
adhesive between powder layers. Usually, the
binder is extruded in liquid form from a print
head just think of a regular inkjet 2D printer.
After a layer is finished, the build plate is
lowered and the process repeated. - You can use this 3D printing technology with
ceramic, metal, sand or plastic materials. - These type of 3D printers have a huge advantage.
You can print in full-colour by adding pigments
to the binder (usually cyan, magenta, yellow,
black and white). This made it the preferred
method for the popular 3D selfies. The drawback
of this 3D printing method is the structural
integrity of the objects. You wont get
high-resolution and rugged prints with this type
of 3D printer technology but there are some
exceptions.
12 Wax Casting
- The Material Jetting technology is better known
as wax casting. Theres no inventor per se
its a technique used by jewellers since
centuries. Lost wax casting (or investment
casting) is a production process that mainly
allows you to produce customizable jewelry of
very high quality in various metals. But with 3D
printing, theres finally a process to automate
wax casting and for most jewellers, that quite
something. - So it has become the dominant type of 3D printing
technology if youre a jeweller or want to
experiment with casts. - There are a handful of professional wax 3D
printers on the market, like the Wax Jet from
Statasys. If you want to experiment with this 3D
printing technology, you dont have to buy a
printer. There are 3D printing services like
Shape ways or Sculpted which use Material Jetting
or Multi jet Modelling (MJM) machines for this
task.
13 Contact us
Address 698 Clems Run City Monroeville State
NJ Country USA Zip code 08343 Phone no
(856)-244-1940 Client Mail sales_at_iannone3d.com
Web site ttp//www.iannone3d.com/
- Address 698 Clems Run
- City Monroeville
- State NJ
- Country USA
- Zip code 08343
- Phone no (856)-244-1940
- Client Mail sales_at_iannone3d.com
- Web site http//www.iannone3d.com/
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