Introduc tion to
Engine e ring Drawing
and Des ign
Drafting And Careers

His tory of E ng ine e ring
Dra wing
First source of detailed history of

drawing- Leonardo da Vinci
 Drawings were generally 3-D in format
and parts were produced individually and
not interchangeable
 Most designs started as sketches and
developed into 3D wooden models
 Drawings were drawn in detail on
blackboards

His tory of Te c h nic a l
Dra wing s
The earliest
technical
drawings dare
back to about
4000 B.C.

Le ona rdo Da Vinc i
Leonardo Da Vinci is most
noted for his extremely
detailed technical
drawings and models.

Drafting started with 3D
models and after years of
evolution 3D models are now
being used again through
CAD.
The 3D model has returned as
a powerful design tool.

E a rly s ke tc h for a m ilita ry
ta n k

F lying Ma c h ine

G e a rs

S ta nda rdiz a tion of Dra wing
P ra c tic e s
1824 – First attempt to standardize

drawings: Franklin Institute, Philadelphia
 1824 – Amos Eaton also founded the
school Rensselaer Polytechnic Institute
 1852 – Morrill Act: More technical schools
emerged

Wh e e l a nd Axle

C a r S e c tion

Inte rfa c e C a rd

De finitions of a dra fte r
Dictionary of Occupational Titles

Career Information System – General

Definition
Occupational Outlook Handbook


Oc c upa tions in Arc h ite c ture &
E ng ine e ring Dra fting F ie lds
Patent Drafter
Architectural Drafter 

Landscape Drafter Tool Design Drafter
 
Electrical Drafter
 Mechanical Drafter

Aeronautical Drafter

Directional Survey

Electronic Drafter
 Drafter
Civil Drafter

Geological Drafter

Structural Drafter

Geophysical Drafter

Casting Drafter

Heating and Ventilating

Drafter

Oc c upa tions in Arc h ite c ture &
E ng ine e ring Dra fting F ie lds
(c ontinue d)
Plumbing Drafter

 Automotive Design Drafter
 Industrial Pipe Drafter
 Technical Illustrator
 Cartographic Drafter
 Photogrammetrist

Th e Dra fting P rofe s s iona l
Org a niz a tion
ADDA
American Design Drafting Association
http://www.adda.org

Dra fting Opportunitie s
Job opportunities fluctuate with national and

local economies
Metropolitan areas show a predominance of

mechanical drafting jobs
Rural areas show more civil drafting and

structural drafting positions

C o pyrig h ts
A copyright is the legal rights given to

authors of “original works of authorship”
 Copyrights control exclusively the
reproduction and distribution of work by
others
 Copyright protection exists from the time
the work is created in fixed form
 Work is property of the author who created
it

P a te nts
A patent for an invention is the grant of a

property right to the inventor
Issued by the Patent and Trademark Office

(PTO)
New patent term is 20 years

Patent Law specifies the subject matter must

be useful and must operate

Tra de m a rks
A trademark is either a word, phrase, symbol

or design, or combination of words, phrases,
symbols or designs, that identify and
distinguish the source or goods or services of
one party from those of another.
Trademarks appear on a product or package.

Service Mark identifies and distinguishes the

source of the service rather than a product.