3D Printing

By

Deepak A S

JLAJEAN020

JCET, Palakkad

What is 3D Printing?

3D printing is a process of making a three-dimensional solid object of virtually any shape from a digital model.

Also known as Additive Manufacturing or Rapid Prototyping. It is an additive process where materials are laid down as layer

by layer in different shapes of thickness ranging from 0.0254mm to 1mm to make 3D objects.

This technology uses a 3D Printing machine connected to a computer containing digital image/data of the object (to be printed) for the printing purpose.

History

1984-The technology for printing physical 3D objects from digital data(Stereo lithography) was first developed by Charles Hull.

1986 - Charles Hull founded 3D Systems and developed the first commercial 3D Printing machine, it was called as Stereolithography Apparatus.

1988 - Scott Crump invented Fused Deposition Modeling (FDM). 1993 - Massachusetts Institute of Technology (MIT) patented "3

Dimensional Printing techniques".

How 3D Printing Works?

3D IMAGE(USING CAD SOFTWARE)

3D PRINTING SOFTWARE

COMPUTER PHASE

3D PRINTER

FINISHED 3D MODEL

PRINTING PHASE

3D CAD Software

3D Printing Software(Zprint)

Types of Printing Stereolithography: It is an additive manufacturing process using

liquid UV-curable photopolymer “resin” and a UV laser to build parts a layer at a time.

Fused deposition modeling (FDM): It is an additive manufacturing which uses hot semi-liquid extrude directly to print objects.

Laminated object manufacturing(LOM) : In this, layers of adhesive-coated paper, plastic or metal laminates are successively glued together and cut to shape with a knife or laser cutter.

Selective laser sintering (SLS): an additive manufacturing technique that uses a high power laser (eg:-, CO2 laser) to fuse small particles of plastic, metal , ceramic or glass powders into a mass that has a desired 3-dimensional shape.

(1) Fused Deposition Modeling(FDM) (2) Stereolithography

(3) Selective laser sintering (SLS) (4) Laminated object manufacturing (LOM)

Frame Head movement mechanism Stepper motor

Print head/extruder

Building platform Building material

3D PRINTER COMPONENTS

Electronics

Modern Printing Machines

Zcorp 650Airwolf 3D AW3D v.4 (Prusa)

Materials Used

• Thermoplastics : ABS,PLA(poly lactic acid),acrylic, elastoplastics , nylon , polypropylene, polyethylene ,polyamide etc.

• Titanium, Stainless Steel, and Tool Steel powders.• Ceramics, glass ,resin, rubber.• Composite powder.

Applications

• Architecture, engineering and construction (AEC) • Automotive & Aerospace industry• Education • Archeology & Paleontology• Health care ,Bioprinting , Medical implants• Entertainment & Fashion• Arts & Historic preservation• Concept and functional prototypes• Tools & Parts• Food & Packaging• Furniture &Interior • Jewellery & Foot ware

Advantages

• No need of cutting, turning, grinding and drilling etc.• Reduced material wastage.• Saves time & cost.• High surface finish ,precision, quality & strength.• Physical objects of any shape , dimension & complex

structure can be made.• No skilled operator is required.

R&D• Auto parts: parts of "Formula 1" car engines, are made by

direct laser sintering of metal.• Aircraft parts: F-18 (fighter aircraft) tube for the control

system environment.• Research on printing human organs.• 3D Printer Transforms Moon Dirt(Regolith)Into Lunar Base: ESA

Project.• Using 3-D Printing Tech, British Airbus Engineers Aim to Print Out an

Entire Aircraft Wing.• Merlin Project:Rolls Royce is going to 3D print aircraft engine parts.• Food printer: MIT project to print food recipe’s using food cartridges.• 3D Concrete Printing: A one tone reinforced concrete architectural

piece has been produced using this.

Urbee: 1st entirely 3D Printed Car

A 3DP Nylon bicycle

Replica of face

3D Printed Audi car using robot

SULSA:1st 3D Printed RC plane

3D Printed replica of Aston Martin car destructed in Bond movie “Skyfall”.

Brain gear model

Giant 3-D Printer to Make An

Entire House in 20 Hours.

1.5 ton 3D printed lunar block A medical implant

A 3D Printed Pipe

A 3D Printed lunar base on imagination

A 3D Printed metal part3DP human skull

A 3D Printed molecular structure of an enzyme3D Printed landscape

3d Concrete Printed Block

3DP leg implant3DP Titanium implant on skull 3DPrinted Jaw

3DP Footwear

3DP Guitar

3DP Wrench

3D printed chair

3D Printed piston engine

3DP cell phone case

3d Printed dental model

3D Printed statue

Conclusion

3DPrinting is an advanced manufacturing process used to built physical objects from digital images.

3D Printing is highly efficient , reliable , time saving & ecofriendly.

3D Printing has applications in wide variety of fields. It is an emerging technology which has scopes for new

developments.

Thank you

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