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4.510 Digital Design Fabrication
Fall 2008
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Lecture 1
4.510
Introduction
CAD Functions
Drafting
Prof. Larry Sass
Department of Architecture and
Planning
4.510 – MIT
Prof. Larry Sass
1
ANDREA PALLADIO
Palladio was a stone mason
Palladio Designed over 30 villas throughout
the Veneto only 19 were built 1535 - 1570
Drawings in the Four Books were written
after the buildings were constructed
X1
X2
X1
The first book contained the rules
Second Book contained drawings of the villas
4.510 – MIT
Prof. Larry Sass
2
DESIGN DRAWINGS
Plan
Elevation
Reference Marks for
section cuts
Scale Notation
Varying Line weights
Section
4.510 – MIT
Prof. Larry Sass
Details
3
CONSTRUCTION DRAWINGS
Wall or Column
notations
Dimension Note
Materials
Notification
4.510 – MIT
Prof. Larry Sass
4
STRUCTURING DOCUMENTS
References
Borders and Title
Blocks
Symbols
Main Drawing
Notes and Titles
4.510 – MIT
Prof. Larry Sass
5
LINES AND VECTORS
CAD SYSTEMS
Lines
Coordinate Systems
Transformations
Operations
4.510 – MIT
Prof. Larry Sass
6
POINTS, LINES AND MANIPULATION
Geometric Entities
Lines are based on the Coordinates not the scale
Radius
(x3.5, y4)
(x, y)
(x1,y1)
4.510 – MIT
Prof. Larry Sass
7
k
POINTS, LINES AND MANIPULATION
(x0,y0)
(x1,y2000)
(k = ?’)
4.510 – MIT
Prof. Larry Sass
8
COORDINATE SYSTEMS
Grid System
Lines Can Snap to Modules
Lines Can Snap to Orthogonal Axes
Lines Can Snap to Objects
4.510 – MIT
Prof. Larry Sass
9
COORDINATE SYSTEMS
Points on Lines
Nearest
4.510 – MIT
Prof. Larry Sass
Endpoint
Midpoint
10
COORDINATE SYSTEMS
Points on Lines
Equal Divisions
4.510 – MIT
Prof. Larry Sass
Intersections
Perpendicular
11
COORDINATE SYSTEMS
Points on Lines
Center Point
Quadrant
Tangent
(to last point)
4.510 – MIT
Prof. Larry Sass
12
LINE TYPES
Straight
4.510 – MIT
Prof. Larry Sass
Arcs
Splines
13
LINE SEGMENTS
Three Segment
4.510 – MIT
Prof. Larry Sass
Nine Segments
14
LINE OPERATIONS
L1
L2
L1
Break Operation
4.510 – MIT
Prof. Larry Sass
Extend Operation
Trim Operation
15
GEOMETRIC CONSTRUCTS
Offsets
Polar
a
X & Y
Parallel
a
Offsets
4.510 – MIT
Prof. Larry Sass
Arrays
16
TRANSFORMATIONS
Grab Point
Rotation Point
Move
Rotate
Grab Point
Grab Point
z
z
Base Point
4.510 – MIT
Prof. Larry Sass
Scale
Base Point
Mirror
17
PRE-DEFINED OBJECTS
Doors
Bathroom
Furniture
Chairs & Tables
Office Furniture
4.510 – MIT
Prof. Larry Sass
18