S. Adami, X.Y. Hu, N.A. Adams Institute of Aerodynamics TU M
Ux PowerPoint Namemshier.weebly.com/.../4/7/26471942/2.1.a__lineconventionspresentat… · Ux...
Transcript of Ux PowerPoint Namemshier.weebly.com/.../4/7/26471942/2.1.a__lineconventionspresentat… · Ux...
![Page 1: Ux PowerPoint Namemshier.weebly.com/.../4/7/26471942/2.1.a__lineconventionspresentat… · Ux PowerPoint Name Author: IED Curriculum Team Subject: IED - Lesson x.y - Lesson title](https://reader033.fdocuments.net/reader033/viewer/2022060310/5f0a98957e708231d42c68ab/html5/thumbnails/1.jpg)
Line Conventions
© 2012 Project Lead The Way, Inc. Introduction to Engineering Design
![Page 2: Ux PowerPoint Namemshier.weebly.com/.../4/7/26471942/2.1.a__lineconventionspresentat… · Ux PowerPoint Name Author: IED Curriculum Team Subject: IED - Lesson x.y - Lesson title](https://reader033.fdocuments.net/reader033/viewer/2022060310/5f0a98957e708231d42c68ab/html5/thumbnails/2.jpg)
Line Conventions
• Lines of varying style and thickness are
used in specific ways to develop and
communicate graphic messages about an
object’s geometry. The next few slides
show some basic line conventions and
their use
![Page 3: Ux PowerPoint Namemshier.weebly.com/.../4/7/26471942/2.1.a__lineconventionspresentat… · Ux PowerPoint Name Author: IED Curriculum Team Subject: IED - Lesson x.y - Lesson title](https://reader033.fdocuments.net/reader033/viewer/2022060310/5f0a98957e708231d42c68ab/html5/thumbnails/3.jpg)
Construction Line
• Very lightly drawn
lines to guide
drawing other lines
and shapes
![Page 4: Ux PowerPoint Namemshier.weebly.com/.../4/7/26471942/2.1.a__lineconventionspresentat… · Ux PowerPoint Name Author: IED Curriculum Team Subject: IED - Lesson x.y - Lesson title](https://reader033.fdocuments.net/reader033/viewer/2022060310/5f0a98957e708231d42c68ab/html5/thumbnails/4.jpg)
Object Line
• Thick and dark
• Define the object
![Page 5: Ux PowerPoint Namemshier.weebly.com/.../4/7/26471942/2.1.a__lineconventionspresentat… · Ux PowerPoint Name Author: IED Curriculum Team Subject: IED - Lesson x.y - Lesson title](https://reader033.fdocuments.net/reader033/viewer/2022060310/5f0a98957e708231d42c68ab/html5/thumbnails/5.jpg)
Hidden Line
• Show interior detail
not visible from the
outside of the part
![Page 6: Ux PowerPoint Namemshier.weebly.com/.../4/7/26471942/2.1.a__lineconventionspresentat… · Ux PowerPoint Name Author: IED Curriculum Team Subject: IED - Lesson x.y - Lesson title](https://reader033.fdocuments.net/reader033/viewer/2022060310/5f0a98957e708231d42c68ab/html5/thumbnails/6.jpg)
Center Line
• Define the center
of arcs, circles, or
symmetrical parts
• Half as thick as an
object line
![Page 7: Ux PowerPoint Namemshier.weebly.com/.../4/7/26471942/2.1.a__lineconventionspresentat… · Ux PowerPoint Name Author: IED Curriculum Team Subject: IED - Lesson x.y - Lesson title](https://reader033.fdocuments.net/reader033/viewer/2022060310/5f0a98957e708231d42c68ab/html5/thumbnails/7.jpg)
Section Line
• Define where
material is cut
away
![Page 8: Ux PowerPoint Namemshier.weebly.com/.../4/7/26471942/2.1.a__lineconventionspresentat… · Ux PowerPoint Name Author: IED Curriculum Team Subject: IED - Lesson x.y - Lesson title](https://reader033.fdocuments.net/reader033/viewer/2022060310/5f0a98957e708231d42c68ab/html5/thumbnails/8.jpg)
Short-Break Line
• Freehand drawn
line
• Shows where part
is broken to reveal
detail behind the
part or to shorten a
long continuous
part
![Page 9: Ux PowerPoint Namemshier.weebly.com/.../4/7/26471942/2.1.a__lineconventionspresentat… · Ux PowerPoint Name Author: IED Curriculum Team Subject: IED - Lesson x.y - Lesson title](https://reader033.fdocuments.net/reader033/viewer/2022060310/5f0a98957e708231d42c68ab/html5/thumbnails/9.jpg)
Dimension Line
• Shows distance
• Arrows drawn on
ends to show where
dimension line starts
and ends
• Actual distance is
typically located in
middle of this line to
display distance
![Page 10: Ux PowerPoint Namemshier.weebly.com/.../4/7/26471942/2.1.a__lineconventionspresentat… · Ux PowerPoint Name Author: IED Curriculum Team Subject: IED - Lesson x.y - Lesson title](https://reader033.fdocuments.net/reader033/viewer/2022060310/5f0a98957e708231d42c68ab/html5/thumbnails/10.jpg)
Extension Line
• Shows where a
dimension starts and
stops
• Used with dimension
lines
• Line is 1/16” away
from part to avoid
confusion with object
lines
![Page 11: Ux PowerPoint Namemshier.weebly.com/.../4/7/26471942/2.1.a__lineconventionspresentat… · Ux PowerPoint Name Author: IED Curriculum Team Subject: IED - Lesson x.y - Lesson title](https://reader033.fdocuments.net/reader033/viewer/2022060310/5f0a98957e708231d42c68ab/html5/thumbnails/11.jpg)
Long-Break Line
• Shorten very long
objects with uniform
detail
• Typically represented
as a jagged cut or
break
![Page 12: Ux PowerPoint Namemshier.weebly.com/.../4/7/26471942/2.1.a__lineconventionspresentat… · Ux PowerPoint Name Author: IED Curriculum Team Subject: IED - Lesson x.y - Lesson title](https://reader033.fdocuments.net/reader033/viewer/2022060310/5f0a98957e708231d42c68ab/html5/thumbnails/12.jpg)
Leader Line
• Show dimensions of
arcs, circles and
detail
![Page 13: Ux PowerPoint Namemshier.weebly.com/.../4/7/26471942/2.1.a__lineconventionspresentat… · Ux PowerPoint Name Author: IED Curriculum Team Subject: IED - Lesson x.y - Lesson title](https://reader033.fdocuments.net/reader033/viewer/2022060310/5f0a98957e708231d42c68ab/html5/thumbnails/13.jpg)
Line Conventions
• These standards relate to technical
drawing (more precise than freehand
sketching)
• Use these standards as a guide when
sketching
![Page 14: Ux PowerPoint Namemshier.weebly.com/.../4/7/26471942/2.1.a__lineconventionspresentat… · Ux PowerPoint Name Author: IED Curriculum Team Subject: IED - Lesson x.y - Lesson title](https://reader033.fdocuments.net/reader033/viewer/2022060310/5f0a98957e708231d42c68ab/html5/thumbnails/14.jpg)
Precedence of Lines
• Complex object sketches may require
different line types to overlap
• Line precedence must be used
• Rules that govern line precedence in
sketches and technical drawings
– Object lines take precedence over hidden and
center lines
– Hidden lines take precedence over center
lines
– Cutting plane lines take precedence over all
others
![Page 15: Ux PowerPoint Namemshier.weebly.com/.../4/7/26471942/2.1.a__lineconventionspresentat… · Ux PowerPoint Name Author: IED Curriculum Team Subject: IED - Lesson x.y - Lesson title](https://reader033.fdocuments.net/reader033/viewer/2022060310/5f0a98957e708231d42c68ab/html5/thumbnails/15.jpg)
Precedence of Lines Examples
Object lines has precedence
over hidden lines
Object line has
precedence over center
line