It is a powerpoint presentation that discusses about the topic or lesson: Types and Examples of Lettering. It also includes the definition, characteristics, types and examples of Lettering..
It is a powerpoint presentation that discusses about the topic or lesson: Types and Examples of Lettering. It also includes the definition, characteristics, types and examples of Lettering..
Types of Lines, Their Thickness
and applications in architectural drawings.
- Ar. Shreya Kataria, Asst. Prof., School Of Architecture IPS Academy, Indore
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This PDF article contains figures and explanations of various types of lines used in technical & engineering drawing practice, and their application or uses.
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The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
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The Roman Empire A Historical Colossus.pdfkaushalkr1407
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Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
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An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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2. Introduction to the Alphabet
of Lines
The use of line types on a drawing
are used to describe the various features
of an object
to the person reading the print
In order to understand what the drafter is
trying to get across
you must be able to understand the
symbols and lines s/he uses.
3. Introduction to the Alphabet
of Lines – Cont’d
A line is the most fundamental and perhaps
the most important, single entity on a
technical drawing
Lines help to illustrate and describe the shape
of objects that will later become real parts.
4. Introduction to the Alphabet
of Lines
Each line has a definite form and line weight.
The standard thick line weight varies from
.030 to .038 of an inch.
The standard thin line weight varies from
.015 to .022 of an inch.
6. 11 Main Line Types
Visible (Object)
Hidden
Center
Dimension
Extension
Leader
Section
Cutting Plane
Phantom
Viewing Plane
Break
7. Visible Lines
Also referred to as Object Lines
Dark, heavy lines.
Show the outline and shape of an object.
Define features you can see in a particular
view.
9. Hidden Lines
Light, narrow, short, dashed lines.
Shows the outline of a feature that can not
be seen in a particular view.
Used to help clarify a feature, but can be
omitted if they clutter a drawing.
15. Extension Lines
Used to show the starting and stopping
points of a dimension.
Must have at least a 1/16th space between
the object and the extension line.
Extension Line
Dimension Line
19. Cutting Plane Lines
Thick broken line that is terminated with
short 90 degree arrowheads.
Shows where a part is mentally cut in half to
better see the interior detail.
21. Section Lines
Thin lines Usually drawn at 45 degrees
There are different types of section lines
depending on the type of material being
cut through
22. Section Lines
Indicates the material that has been cut
through in a sectional view
Use to show where the cutting-plane line has
cut through material
24. Break Lines
Used to break out sections for clarity or for
shortening a part.
Three types of break lines with different line
weights.
Short Breaks.
Long Breaks.
Cylindrical Breaks.
25. Short Break Lines
Thick wavy line.
Used to break the edge or surface of a part
for clarity of a hidden surface.
Short Break Line
26. Long Break Lines
Long, thin lines.
Used to show that the middle section of an
object has been removed so it can be drawn
on a smaller piece of paper.
27. Cylindrical Break Lines
Thin lines.
Used to show round parts that are broken in
half to better clarify the print or to reduce the
length of the object.
28. Phantom Lines
Thin lines made up of long dashes alternating
with pairs of short dashes.
Three purposes in drawings.
1. To show the alternate position of
moving parts.
2. To show the relationship of parts
that fit together.
3. To show repeated detail.
29. Alternate Position
Phantom lines can show where a part is
moving to and from.
Eliminates the confusion of thinking there
may be 2 parts instead of just 1.
Phantom Lines
31. Relationship of Mating Parts
Phantom lines can also show how two or
more parts go together without having to
draw and dimension both parts.
32. Repeated Detail
Phantom lines can show repeated detail of an
object.
Saves the drafter time and the company
money.
Less chance of drafter error.
33. OnLine Slide Show
There is a brief and easy to follow
demonstration of the Alphabet of Lines on
line
http://www.wisc-
online.com/objects/ViewObject.aspx?ID=M
TL17903
34. Summary
Now that we have discussed the 11 main line
types, you should be able to do the following:
1. Identify the alphabet of lines.
2. Identify where the line types are
used.
3. Produce the lines with various
line weights.
