3d printing which is the getting most common method for designing purposes
3D Printing, also known as Additive Manufacturing (AM), refers to processes used to create a three-dimensional object[1] in which layers of material are formed under computer control to create an object.[2] Objects can be of almost any shape or geometry and are produced using digital model data from a 3D model or another electronic data source such as an Additive Manufacturing File (AMF) file. STerioLithography (STL) is one of the most common file types that 3D printers can read. Thus, unlike material removed from a stock in the conventional machining process, 3D printing or AM builds a three-dimensional object from computer-aided design (CAD) model or AMF file by successively adding material layer by layer
3. • A manufacturing processA manufacturing process
• 3D objects3D objects
• Additive (one layer at a time)Additive (one layer at a time)
• According to 3D modelsAccording to 3D models
What is 3D Printing?
4. What is 3D Printing?
"Rapid prototyping slicing"
by Materialgeeza - Own
work. Licensed under CC
BY-SA 3.0 via Commons
5. • Additive: one layer at a time
• Common methods for producing layers:
FDM, SLS, SLA
• FDM: fused deposition modeling
• SLS: selective laser sintering
• SLA: stereolithography
How does it workHow does it work??
6. • Extrusion DepositExtrusion Deposit
• Vat PhotopolymerisationVat Photopolymerisation
• Material JettingMaterial Jetting
• Binder JettingBinder Jetting
• Powder Bed FusionPowder Bed Fusion
• Sheet LaminationSheet Lamination
• Directed Energy DepositionDirected Energy Deposition
Categories of Additive ManufacturingCategories of Additive Manufacturing
(American Society for Testing and Materials)(American Society for Testing and Materials)
7. Extrusion DepositExtrusion Deposit
"FDM by Zureks" by"FDM by Zureks" by
Zureks - Own work.Zureks - Own work.
Licensed under GFDL viaLicensed under GFDL via
Commons -Commons -
• A.k.a: fused deposition
modeling (FDM)
• Most commonly used
• Prototyping
• Inexpesive
10. • E.g.: Selective laser sintering (SLS)E.g.: Selective laser sintering (SLS)
"Selective laser melting system schematic" by Materialgeeza -"Selective laser melting system schematic" by Materialgeeza -
Own work. Licensed under CC BY-SA 3.0 via Commons -Own work. Licensed under CC BY-SA 3.0 via Commons -
Powder bed fusionPowder bed fusion
11. • Selective laser sintering (SLS)Selective laser sintering (SLS)
• Developed in 1980s at UTDeveloped in 1980s at UT
AustinAustin
• Pattern expired 2014Pattern expired 2014
• Materials: metals, polymers,Materials: metals, polymers,
nylonnylon
• In powder form.In powder form.
• Un-melted powder becomesUn-melted powder becomes
supporting material.supporting material.
Powder Bed Fusion
12. "Stereolithography"Stereolithography
apparatus" byapparatus" by
Materialgeeza - OwnMaterialgeeza - Own
work. Licensed underwork. Licensed under
CC BY-SA 3.0 viaCC BY-SA 3.0 via
Commons -Commons -
Examples:Examples:
SLA (stereolithography)SLA (stereolithography)
CLIP (Continuous LiquidCLIP (Continuous Liquid
Interface Production)Interface Production)
15. • 3D Scanners3D Scanners
e.g.: Kinecte.g.: Kinect
• CAD (Computer-Aided Design) softwareCAD (Computer-Aided Design) software
e.g.: AutoCAD (free for students)e.g.: AutoCAD (free for students)
• Visualization softwareVisualization software
e.g. VTKe.g. VTK
3D Model Creation
16. STL: STereoLithographySTL: STereoLithography
•By 3D SystemsBy 3D Systems
•Triangulated surface meshesTriangulated surface meshes
•ASCII or binaryASCII or binary
•No unitNo unit
•No colorNo color
3D Print File Format
17. 3MF: 3D Manufacturing Format3MF: 3D Manufacturing Format
•Geometries (Triangulated, NURBs, …)Geometries (Triangulated, NURBs, …)
•Materials (Color, Texture, Composite)Materials (Color, Texture, Composite)
•Open sourceOpen source
3D Print File Format3D Print File Format
