4.212

Design Fabrication Design, Computation and

Computer Controlled Devices

Prof. Larry Sass Department of Architecture and Planning

MIT

LECTURE #1

Design

Theory of Design Fabrication

Fabricating Space

[1]

Design Process

DESIGN PROCESS PROBLEMS

Most people have a traditional understanding of CAD CAM & Rapid Prototyping

Design is not a end it is an exploration

The first output is the beginning of the exploration of design

[ design ]

[ problem setting ] [ problem solving ]

Creativity Engineering

PROBLEM SOLVING

Many computational solutions can be found on the engineering side of design

Lighting software

Structural analysis software

Parametric software

PROBLEM SETTING

If all programs analysis space after the space is completed which programs are built for design?

DESIGN PROCESS

Charles S. Pierce 1839 - 1914

He believed that knowledge will always be comprehended in signs external to the mind which assist the development of thought.

John Dewey 1959-1952

Action and reflection – that we learn from our experiences.

object creation

reflection

manipulation

EXPLORATORY PROCESS

Search for truth in manipulation & representation

Conc

ept-

Sche

mat

ics-

Prob

lem

Set

ting

Prog

ram

min

g

Des

ign

and

Dev

elop

men

t

Cons

truc

tion

Doc

umen

tatio

n

Cons

truc

tion

Adm

inis

trat

ion

Problem Solving

EXPLORATORY PROCESS USING RAPID PROTOTYPING

Search for truth through shape manipulations in CAD & physical representation using RP Devices

HOW DOES THIS WORK IN A COMPUTATIONAL ENVIRONMENT?

object creation

reflection

object manipulation

reflection

HOW DOES THIS WORK IN A COMPUTATIONAL ENVIRONMENT?

Rapid manipulators

Designers want quick, accurate representations of design ideas

Design Fabrication is made of many relationships Relationship of CAD to Devices Relationship of RP Devices to CAD CAM Relationship of RP to assemblies of shapes

Industry

[ designers ]

[ problem setting ] physical representation

[ problem solving ]

[ engineers]

3D 3D

Scanning Digitizing

Scripting

ProgramModeling

Modeling Computer Parametric

Fabrication

1 D - Text 2D Cutting 3 D Printing Assembly

1 – Design Model

Remove Section from original design model

7”

2 – Design Model

14’ model scaled to 7” for laser cutting and 3d printing

7”

7”

7”

3 – Construction Model

New model created as an overlay of the model cut from the design model.

New Model

Original Model

4 – Construction Model

Model parts for cutting of 1/8” plexi glass and a plaster base

5 – Cut Sheet Cut sheet and 3D model reflecting the final model

numbered Parts are

Cut Sheet

5 – Final Design

Final Design

6 – Translation

Open files at the laser cutter and set line weights (power and speed).

7 – Assembly

Assemble with minimal glue

[2] Design Fabrication:

Physical Representation of Information & the Relationship of Design, Computing and NC Devices

[3]

Fabrication Studio

Physical Design Reflection

1 D - Text 2 D - Drawings 3 D - Renderings 2 D - CuttingAnimation 1 D - Text 3 D - Building Assembly

Visualization Fabrication

3D 3D Modeling Parametric Computer Scanning Digitizing Modeling

Scripting Program

1 D - Text 2 D - Drawings 3 D - Renderings 2 D - CuttingAnimation 1 D - Text 3 D - Building Assembly

Visualization Fabrication

3D 3D Modeling Parametric Computer Scanning Digitizing Modeling

Scripting Program

COMPUTER NUMBERICALLY CONTROLLED DEVICES

[ building devices ] [ subtraction devices ]

[ STUDIO DEVICES ]

[ solid forms ] [ cutters ]

a

b

c

[4] New Languages of Design

Complex Designs

OUR WORLD IS COMPOSED OF EUCLIDIAN GEOMETRIES

Repetition of building parts

Means of Measurement

Process of Construction

NON EUCLIDIAN DESIGN

No Repetition of building parts

No Means of Measurement

Process of Construction based on Self Assembled Parts

FABRICATION STUDIOS

RP devices to start the process

Self Assembled parts

A variety of cutting and building devices

DESIGN FABRICATION

[1] Physical Representation of Information

[2] Paperless Design Studios

[3] New Languages of Design