Contains all information you need for an introduction to 3d printing. Includes:
What is 3d printing?
Why use 3d printing?
When did it begin?
How does it work? + 2 small videos to show the same
Recent developments and future
2024: Domino Containers - The Next Step. News from the Domino Container commu...
3D Printing
1.
2. WHAT IS 3D PRINTING?
3D printing is a process of
making a three-
dimensional solid object of
virtually any shape from
a digital model. 3D printing is
achieved using an additive
process, where successive
layers of material are laid
down in different shapes. 3D
printing is also considered
distinct from
traditional machining
techniques, which mostly rely
on the removal of material by
methods such as cutting or
drilling
(subtractive processes).
3. WHY USE 3D PRINTING?
• Digital object storage
• Digital object delivery
• More local manufacturing
• Reduced materials wastage
• Increased customization
4. The first working 3D printer
was created in 1984 by Chuck
Hull of 3D Systems Corp. For
many years 3D printing has
been used in rapid prototyping
and to help produce mold
masters. But more recently
pioneers such as freedom of
creation and make eye wear
have begun to use 3D printers
to digitally manufacture final
product or parts. This means
that it's already possible to
purchase spectacles, furniture
and many other items that have
been 3d-printed and this trend
is set to continue. Today 3D
printers can build items in a
wide variety of materials
including plastics, metals,
glass, concrete and even
chocolate.
WHEN DID IT BEGIN?
6. There are basically two
ways of 3D printing objects.
Some technologies achieve
this by extruding a multi
material such as standard
plastic from a print head
nozzle.
Other technologies lay
down successive layers of
powder but to selectively
fuse solid with a laser beam
or some other heat source or
else bonded with a spray or
adhesive.
HOW DOES IT WORK?
7. Fused deposition modeling uses a plastic
filament or metal wire that is wound on a coil
and unreeled to supply material to
an extrusion nozzle, which turns the flow on
and off. The nozzle heats to melt the material
and can be moved in both horizontal and
vertical directions by a numerically controlled
mechanism that is directly controlled by
a computer-aided manufacturing (CAM)
software package. The model or part is
produced by extruding small beads
of thermoplastic material to form layers as the
material hardens immediately after extrusion
from the nozzle. Stepper motors or servo
motors are typically employed to move the
extrusion head. With the expiration of patent
on this technology there is now a large open-
source development community this type of
3D printer (e.g. RepRaps) and many
commercial and DIY variants, which have
dropped the cost by two orders of magnitude.
EXTRUSION DEPOSITION
8.
9. Another 3D printing approach is the
selective fusing of materials in a
granular bed. The technique fuses
parts of the layer, and then moves the
working area downwards, adding
another layer of granules and
repeating the process until the piece
has built up. This process uses the
unfused media to support overhangs
and thin walls in the part being
produced, which reduces the need for
temporary auxiliary supports for the
piece. A laser is typically used
to sinter the media into a solid.
Examples include selective laser
sintering (SLS), with both metals and
polymers (e.g. PA, PA-GF, Rigid GF,
PEEK, PS, Alumide, Carbonmide,
elastomers), and direct metal laser
sintering (DMLS).
GRANULAR MATERIALS BINDING
12. Dying patients could someday
receive a 3D-printed organ made from
their own cells rather than wait on long
lists for the short supply of organ
transplants. Such a futuristic dream
remains far from reality, but university
labs and private companies have
already taken the first careful steps by
using 3D-printing technology to build
tiny chunks of organs.
Regenerative medicine has already
implanted lab-grown skin, tracheas and
bladders into patients body parts grown
slowly through a combination of
artificial scaffolds and living human
cells. By comparison, 3D-printing
technology offers both greater speed
and computer-guided precision in
printing living cells layer by layer to
make replacement skin, body parts and
perhaps eventually organs such as
hearts, livers and kidneys.
3D PRINTED ORGANS!
13. One day astronauts may actually
press a couple of buttons on a
machine that will print a delicious
home cooked dinner for them.
Sound crazy? Well it's not. The
future is here, with the prototype
release of a 3D printer that can print
food in the US.
Food printing offers a range of
potential benefits. A food printer
opens the door to fully personalized
food since products can be made
that are perfectly in tune with
individual needs and preferences.
The printer can also ensure that
your personal meal is made at
exactly the right moment in time so
that you come home to a fresh,
healthy meal.
3D PRINTED FOOD
14. At a TED talk in Ojai,
Calif., Behrokh Khoshnevis, director
of the Manufacturing Engineering
Graduate Program at the University of
Southern California, said nearly 1
billion people in the world don’t
have access to adequate shelter, a
situation that breeds poverty,
disease, illiteracy, crime and
overpopulation. To address this
problem, Khoshnevis is developing a
process called Contour Crafting to
use 3D printing technology to build
entire houses.
Khoshnevis said the giant 3D
printers his team is developing can
build a 2,500-square-foot house in as
little as 20 hours. The Contour
Crafting 3D printers could even do the
electrical work, plumbing, tiling,
finishing work and painting.
3D PRINTED HOUSES
15. What would happen if you have a
technology to print anything? While there is a
big bright side to this technology but there is
also a dark side. Because some people
might intend to use this technology for illegal
purposes like making guns.
Enter Cody R. Wilson. Wilson is a 25-year-
old University of Texas law student working
to build semiautomatic weapons using 3D
printers. Wilson posted an Indiegogo pitch
video demonstrating his intended use for a
newly-acquired Stratasys 3D printer, which
Stratasys subsequently repossessed. As
making gun is obviously illegal if you don’t
have a license so this guy is making gun
parts which are crucial in making guns. And
he is not the only one. There are many like
him. Who knows what will happen.
3D PRINTED GUNS