3D PrintingCHAN Choi Ching 15227243HUI Ming Ho 15215903NG Pui Yiu 15217787

Contents○ Mind Map○ Background and history○ Mechanism○ Materials ○ Development and application○ Pros and Cons ○ Survey Results

Mind Map○ https://www.mindmeister.com/58244788

6/3d-printing

Objectives○ Understand the mechanism of 3D

Printing and its own application○ Analyze the public opinion towards 3D

Printing○ Identify the pros and cons of 3D Printing

Background○ 3D Printing (Additive Manufacturing)○ Three-dimensional object from digital

file(STL)○ Either using a 3D modeling program

(create new) or a 3D scanner (existing object)

○ ‘Sliced’ into successive layers (horizontal cross-section)

History○ Developed by Chuck Hull in 1984○ Originally known as ‘Rapid Prototyping’○ Most common method:

stereolithography (STL)○ Price in 2007 ~USD10000 ○ First commercial 3D Printer launched in

2009

Mechanism

Modeling Printing Finishing

Modeling○ Scanning the desired product by a 3D

scanner or create a model by using Computer Aided Design (CAD)

○ Collect geometric data for computer to make a digital model

○ ‘Sliced’ into layers○ Convert the data into a readable file for

3D printer (.slt)

PrintingType Technology

Extrusion Fused deposition modeling (FDM) Fused Filament Fabrication (FFF)

Light polymerized (Vat Photopolymerization)

Stereolithography (SLA)Digital Light Processing (DLP)

Power Bed Powder bed and inkjet head 3D printing (3DP)Electron-beam melting (EBM) Selective laser melting (SLM)

Sheet Lamination Selective Deposition Lamination (SDL)

Materials○ Thermoplastics○ Rubber○ Metals & Alloys○ Ceramics powder○ Modeling Clay○ Paper○ Photopolymers

Application○ Medical Industry (Bio-Printing)○ Aerospace and Aviation Industry○ Automotive○ Art/Design/Architecture○ Food Industry○ Personal/Consumer use

Video

Survey Charts

Survey Charts

Survey Charts

Advantages○ Rapid Prototyping○ Flexible in customization /

personalization○ Complexity (Aerospace or Micro-scale

medical bio-printing)○ Fast manufacturing speed○ Reducing cost

Disadvantages○ Fewer manufacturing jobs○ Limited choice of materials○ Limited size of product○ May pose other environmental problems○ Safety issues

Work distributionName WorkChan Choi Ching, Shania Perzi, Survey Analysis, video

Hui Ming Ho, Vincent Powerpoint, information research

Ng Pui Yiu, Yoyo Perzi, Survey Analysis, video

Reference○ http://www.philforhumanity.com/3D_Prin

ting.html○ http://3dprinting.com/what-is-3d-printin

g/#applications○ https://en.wikipedia.org/wiki/3D_printing○ http://3dprintingindustry.com/3d-printing

-basics-free-beginners-guide/○ https://www.youtube.com/watch?v=dcX

41EQ1JTo

END