CAD:
Computer Aided Design.
Image file format used by AutoCAD.
History of CAD:
In 1961, American Ivan Sutherland.
AutoCAD:
Automatic Computer Aided Design.
Create blueprints for buildings, bridges and chips.
Meaning of AutoCAD:
Program software used for 2-D, 3-D design and drafting.
Inventor of AutoCAD:
In 1982, John walker.
Purpose:
Improve the quality and increase productivity of design.
2-D and 3-D design of physical objects.
Why CAD?
Manufactures produce design products at quicker rate and higher standard.
Design and develop products to be used by consumers.
CAD software is used by:
Engineers.
Designers.
Architects.
Languages in CAD:
FORTRAN, ALGOL, OOPS.
FORTRAN:
Formulae Translation.
ALGOL:
Algorithmic languages.
How CAD is used in industry:
Product development cycle.
Concept to manufacturing.
Complex designs for automative industry.
How CAD is used in textiles:
Speeds up design process.
Quick and easy to modify ideas before production starts.
CAD data:
Hardware and software used by design and document real world objects.
Types of CAD data files:
DWG file:
Auto CAD drawing database file.
For drawing binary file format.
Extension is .dwg
Easily read but information is in bit level.
DWF file:
Design web format.
Originally 2D. DWF included 3D.
Files generated by all autodesk products.
Extension is .dwf
DXF file:
Drawing Exchange Format.
Documents open more easily with other programs.
Same as DWG files.
Any version can open.
Extension is .dxf
DGN file:
Diffuse Glomerulonephritis.
Supports by Bently systems microstations design system.
Extension is short for design.
Extension is .dgn
STL file:
Stereo lithography software created by 3D systems.
Rapid prototyping industry.
Interact with on demand manufacturing.
Extension is .stl
CAD platforms:
AutoCAD and microstations are two most widely used general purpose CAD platforms.
Examples of CAD:
3D solid or surface models.
2D vector based drawings.
2D CAD:
Drawing include all geometric shapes in 2D.
3D CAD:
Designs perform in the real world.
Solid Model:
Solid objects in areas of CAD.
Physical objects.
Product visualisation.
3D curves created by designer.
Advantages of CAD:
Very accurate design.
Drawings can be done in 2D or 3D and rotated.
Reduced storage space.
Disadvantages of CAD:
Work can be lost if computer crashes.
Time taken to learn how to use software.
Work could be stolen or hacked.
Corrupted by virus.
Applications:
Photo realistic rendering.
Jewellery.
Cars.
Buildings.
Bridges.
Image file format used by AutoCAD.
History of CAD:
In 1961, American Ivan Sutherland.
AutoCAD:
Automatic Computer Aided Design.
Create blueprints for buildings, bridges and chips.
Program software used for 2-D, 3-D design and drafting.
Inventor of AutoCAD:
In 1982, John walker.
Purpose:
Improve the quality and increase productivity of design.
2-D and 3-D design of physical objects.
Why CAD?
Manufactures produce design products at quicker rate and higher standard.
Design and develop products to be used by consumers.
CAD software is used by:
Engineers.
Designers.
Architects.
Languages in CAD:
FORTRAN, ALGOL, OOPS.
FORTRAN:
Formulae Translation.
ALGOL:
Algorithmic languages.
How CAD is used in industry:
Product development cycle.
Concept to manufacturing.
Complex designs for automative industry.
How CAD is used in textiles:
Speeds up design process.
Quick and easy to modify ideas before production starts.
CAD data:
Hardware and software used by design and document real world objects.
Types of CAD data files:
DWG file:
Auto CAD drawing database file.
For drawing binary file format.
Extension is .dwg
Easily read but information is in bit level.
DWF file:
Design web format.
Originally 2D. DWF included 3D.
Files generated by all autodesk products.
Extension is .dwf
DXF file:
Drawing Exchange Format.
Documents open more easily with other programs.
Same as DWG files.
Any version can open.
Extension is .dxf
Diffuse Glomerulonephritis.
Supports by Bently systems microstations design system.
Extension is short for design.
Extension is .dgn
STL file:
Stereo lithography software created by 3D systems.
Rapid prototyping industry.
Interact with on demand manufacturing.
Extension is .stl
AutoCAD and microstations are two most widely used general purpose CAD platforms.
Examples of CAD:
3D solid or surface models.
2D vector based drawings.
2D CAD:
Drawing include all geometric shapes in 2D.
Designs perform in the real world.
Solid objects in areas of CAD.
Physical objects.
Product visualisation.
Surface model:
External aspects of an object.3D curves created by designer.
Very accurate design.
Drawings can be done in 2D or 3D and rotated.
Reduced storage space.
Disadvantages of CAD:
Work can be lost if computer crashes.
Time taken to learn how to use software.
Work could be stolen or hacked.
Corrupted by virus.
Applications:
Photo realistic rendering.
Jewellery.
Cars.
Buildings.
Bridges.