3D printing, also known as additive manufacturing, involves building 3D objects from a digital file by laying down successive layers of material. There are several technologies used for 3D printing including stereolithography, selective laser sintering, multi-jet modeling, and inkjet 3D printing. 3D printing allows for rapid prototyping, reduces development costs, and increases customization. Applications of 3D printing include design prototyping, education, and healthcare.

1. 3D PRINTING
A Technology towards revolution
BY: Saumya Ranjan Behura

2. Topics
• What is 3D printing?
• Additive Process
• General Principles
• 3D Printing Technology
• Work Flow
• Why 3D Printing?
• Applications
• Videos
• Conclusions
2

3. What is 3d printing?
• The technology used for printing physical 3d objects from digital
out is called 3d printing.
• I t was first developed by Charls Haul in 1984.
• It is also called RAPID PROTOTYPES.
• In 1993, Massachusetts Institute of Technology (MIT) patented
another technology, named "3 Dimensional Printing techniques",
which is similar to the inkjet technology used in 2D Printers.

4. Additive Manufacturing:
The term additive manufacturing refers to
technologies that create objects through a
sequential layering process. Objects that are
manufactured additively can be used anywhere
throughout the product life cycle,

5. General Principles
Modeling
Printing
Finishing

6. General Principles
Modeling:
Additive manufacturing takes virtual
blueprints from computer aided design (CAD)
or animation modeling software and "slices" them
into digital cross-sections for the machine to
successively use as a guideline for printing.

7. General Principles
Printing:
To perform a print, the machine
reads the design and lays down successive
layers of liquid, powder, or sheet material to
build the model from a series of cross sections.
These layers, which correspond to the virtual
cross sections from the CAD model, are joined
together or automatically fused to create the
final shape. The primary advantage of this
technique is its ability to create almost any
shape or geometric feature.

8. General Principles:
Finishing :
Though the printer-produced resolution
is sufficient for many applications, printing a
slightly oversized version of the desired object in
standard resolution, and then removing material
with a higher-resolution subtractive process can
achieve a higher-resolution

9. 3D PRINTING TECHNOLOGY:
Stereolithography
Selective laser sintering (SLS)
Multi-jet modeling (MJM)
Inkjet 3D printing

10. Stereolithography
• Stereolithography is a process for creating threedimensional objects using a computer-controlled laser to
build the required structure, layer by layer. It does this by
using a resin known as liquid photopolymer that hardens
when in contact with the air.

11. Selective laser sintering (SLS)
• 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.

12. Multi-jet modeling (MJM)
• This again builds up objects from successive layers of
powder, with an inkjet-like print head used to spray on a
binder solution that glues only the required granules
together. The V-Flash printer, manufactured by Canon, is
low-cost 3D printer. It’s known to build layers with a lightcurable film. Unlike other printers, the VFlash builds its parts
from the top down.

13. Inkjet 3D printing
• It creates the model one layer at a time by spreading a layer of
powder (plaster, or resins) and inkjet printing binder in the cross-section
of the part. It is the most widely used 3-D Printing technology these days
and the reasons beyond that are stated below.
• This technology is the only one that
• Allows for the printing of full color prototypes.
• Unlike stereo lithography, inkjet 3D printing is optimized for speed, low
cost, and ease-of-use.
• No toxic chemicals like those used in stereo lithography are required.
• Minimal post printing finish work is needed; one needs only to use the
printer itself to blow off surrounding powder after the printing process.
• Allows overhangs and excess powder can be easily removed with an
air blower.

14. Inkjet 3D printing

15. WORK FLOW :

16. CAD Preparation (Pre-Process):

17. 3D Printing:

18. Cleaning 3D Printouts (Post-Process):

19. Powder Removal:

20. Heating

21. Finishing Touches

22. WHY 3D PRINTING?
Increase Innovation
Improve Communication
Speed Time to Market
Reduce Development Costs
Win Business

23. APLLICATION OF 3D PRINTING :
Design Prototypes:
•3-Dimensional Printing concept model, functional prototypes and
presentation models for evaluating and refining design,
including Finite Element Analysis (FEA) results and packaging.
•Size: 3.5 x 2 x 0.7 inches
•(9 x 5 x 2 cm)
•Printing Time: 0.5 hours

24. APLLICATION OF 3D PRINTING :
Education:
•Engage students by bringing digital concepts into the real world,
• turning their ideas into real-life 3D color models that they can actually hold in
•Size: 8 x 5 x 2.5 inches
•(20 x 13 x 6 cm)
Printing Time: 3 hours

25. APLLICATION OF 3D PRINTING :
Healthcare:
•Rapidly produce 3D models to reduce operating time,
enhance patient and physician communications, and improve patient outcomes.
•Size: 9.8 x 7.9 x 3.9 inches
25 x 20 x 10 cm)
•Printing Time: 5.5 hours

26. APLLICATION OF 3D PRINTING :
Reduce material wastage
More local manufacturing
Increased customisation
Digital storage & transportation
Open design
&
MANYMORE

27. VIDEOS:

28. CONCLUSION:
Nothing communicates ideas faster than a threedimensional part or model. With a 3D printer you
can bring CAD files and design ideas to life – right
from your desktop. Test form, fit and function – and
as many design variations as you like – with
functional parts.