Download - 03 Engineering Drawings
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Engineering Graphics & Manual DrawingEngineering Graphics & Manual Drawing
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Engineering graphicsEngineering graphics Drawings are widely used in engineering applications:
manufacturing, design, structural, electrical, etc.
Standards and conventions
To ensure everybody using the same method
Commonly used:
ANSI, AS!, IS", #IS, S, DIN, $S
a w you earn &roducing engineering drawings
Interpreting engineering drawings
'raphics theory, visuali(ation,
standards, conventions, Applications, etc.
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Engineering graphicsEngineering graphics E.g. Anatomy of a technical drawing
15
0
R2.5
10
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Drawing layoutDrawing layout One of the important aspect in technical
drawing is the layout What is drawing layout?
Example of engineering drawing with layout aper si!e
"#omponents$ of a layout
Our layout
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Drawing layoutDrawing layout Drawing layout is the standard template and
components of a drawing
E.g.
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Drawing layoutDrawing layout Drawing sheets ) paper si(es
*sually based on +A+ series
Drawing sheets material
paper, linen, plastic film Drawing sheet layout
Sheet frames or border
A1
A2
A3
A4
A4
*sually -mm for A / A0,0mm for others
Title bloc1 or title frame
2epresents generalinformation source for adrawing
*sually at bottom righthandcorner
Designation Dimensions
A( )*+ mm x ++), mm
A+ -,* mm x )*+ mm
A *( mm x -,* mmA/ ,0 mm x *( mm
A* +( mm x ,0 mm
A- +*, mm x +( mm
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The ISO 'A' Series
%he ISO 'A' series of sheet si!es is asedon a constant width to length ratio of
+12.
%he A0 si!e is defined as ha3ing an areaof one s4uare meter. %his allows paper
aper si!eaper si!e additional infoadditional info
s4uare meter.
Each smaller sheet si!e is exactly half thearea of the pre3ious si!e. ie. 5f you cut anA0 sheet in half you get two A1 sheets65f you cut an A1 sheet in half you get twoA2 sheets6 and so on 7
Source: http://www.metrication.com/drafting/paper.htm
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aper si!eaper si!e additional infoadditional info
%his relationship of +1 2 is particularly important forreduction onto microfilm8 or reduction and enlargementon photocopiers. All metric e4uipment including microfilm
cameras8 microfilm printers8 photocopiers8 and e3endrawing pen si!es8 are designed around this ratio. %hisma'es the process of archi3ing drawings8 resi!ing8 andmodifying drawings easy.
Designation Dimensions
A( )*+ mm x ++), mm
A+ -,* mm x )*+ mm
A *( mm x -,* mmA/ ,0 mm x *( mm
A* +( mm x ,0 mm
A- +*, mm x +( mm
Source: http://www.metrication.com/drafting/paper.htm
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Designation Dimensions
9( +((( mm x +*+* mm
9+ 0(0 mm x +((( mm
Designation Dimensions (mm) Dimensions (in)
US Engineering:
A:;5 A +-., mm x 0,.* mm ).-< x ++ 8 NTS ) the drawing is not drawn to a certainscale
2ecommended scale
0:0 for full si(e
-:0 for twice full si(e 0:0 for ten times full si(e
for reduced si(e
0:- for half full si(e
0:0 for tenth full si(e
other common scale 0:6, 0:-, 0:6, 0:0, 0:6 etc.
Actual
size1:1
2:1 1:2
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#onclusions#onclusionsWhat has een co3ered today1 Different types of drawing
;'etching techni4ues
Drawing layout & title loc' ettering
;cale
Exercise>eferences1F Engineering Drawing8 A.W. 9oundy8 McGrawFill8 (((F Cundamentals of Graphics #ommunication /rd Edition8 Gary 9ertoline & Eric Weie8 McGrawFill