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By: Mohanad Yehia
All Copy Rights Saved to the 7th Students’ Conference on Communication and Information Based in the Faculty of Computers and Information Cairo University – Egypt 2011/2012 www.scci-cu.com
Topic Code: TCW-04-2012
Instructed on: 17-Feb-2012 | Session: #05
What is 3D printing?
3D printing process.
3D printing techniques.
3D printing applications.
Advantages.
Against.
is a form of additive manufacturing technology where a three dimensional object is created by laying down successive layers of material. It is also known as rapid prototyping.
start
Layer of powder deposit automatically
Print head applies resin to powder layer
Powder layer dries almost immediately
Add another layer?
Remove completed model
Finish
Yes
No
Print a layer of powder
Print cross section Spread a layer of powder
Stereo lithography (SLA).
Fused deposition modeling (FDM).
Selective laser sintering (SLS).
A perforated platform is positioned below the surface of a liquid photo curable polymer.
A UV laser beam traces the first slice on the surface of this liquid, causing a very thin layer of photopolymer to harden.
Another slice is then created, and so on.
Here a hot thermoplastic is extruded from a temperature-controlled print head to produce fairly robust objects to a high degree of accuracy.
This builds objects by using a laser to selectively fuse together successive layers of a cocktail of powdered wax, ceramic, metal, nylon or one of a range of other materials.
Product formation (prototyping).
Metal casting.
Geospatial designs.
The use of 3D scanning technologies allows the
replication of real objects.
Architects need to create mockups of their
designs.
3D printing allows artists to create objects that would be incredibly difficult, costly, or time intensive using traditional processes.
In Medical Field, Surgeons are using 3d printing machines to print body parts for reference before complex surgeries.
Looking further in the future, research is underway as scientists are working on creating replacement organs.
3D printed bike.
3D printed instruments
3D printed mummy
3D printed shoe
3D printed toys
3D printed architecture
3D printed architecture
3D printed face
3D printed limbs
Increased part complexity.
Digital design and manufacturing.
Relatively low cost and time.
Instant production on a global scale.
Waste reduction (Green technology).
High cost for domestic use.
3D printing technology may have implications for artistic copyright, design right and trade marks.
Bad option for common designs.