chapter 2harryapplin.com/blueprint/downloads/chapter02-03.pdfalphabet of lines •additional line...
TRANSCRIPT
1
2Chapter 2
Chapter 2•Line Conventions and Lettering
3Learning Objectives
Learning Objectives
• Identify the standard alphabet of lines.
•Describe the types of lines by appearance and
purpose.
• Identify the style of lettering recommended for
standard industrial drawings.
4Line Conventions
Line Conventions
•A convention is a generally accepted way of
doing something
•A list of line types is used throughout
industry to show the conventional practice
for industrial prints
•This list is defined in many references as the
alphabet of lines
5Alphabet of Lines
Alphabet of Lines
•Most common line types:
– Visible lines
– Hidden lines
– Center lines
6
Not Shown Chain Line
7
8Visible Lines
Visible Lines
9Hidden Lines
Hidden Lines
10Center Lines
Center Lines
11Alphabet of Lines
Alphabet of Lines
•Line types used in section views:
– Section lines
– Cutting-plane lines
– Short break lines
12Lines Types Used in Section Views
Lines Types Used in Section ViewsAlso, Elevations in Arch.
13Alphabet of Lines
Alphabet of Lines
•Line types used in dimensioning:
– Extension lines
– Dimension lines
– Leader lines
14Lines Types Used in Dimensioning
Lines Types Used in Dimensioning
15Alphabet of Lines
Alphabet of Lines•Additional line types:
– Break lines
– Phantom lines
– Stitch lines
– Chain lines
16CHAIN LINES
CHAIN LINES•These lines show that a surface or surface zone is to receive
additional treatment or considerations within limits specified on
a drawing
17Alphabet of Lines
Alphabet of Lines
•Conventional “S” break lines
18
19What do you see?
What do you see?
20
21
22
23
24
25
26Chapter 3
Chapter 3
Title Blocks and Parts Lists
27Learning Objectives
Learning Objectives• Describe drawing sheet sizes and formats• Identify marginal information and zoning methods for
drawing sheets• Identify the elements of the title block as defined by
industry standards• Explain the techniques for identifying parts of an
assembly drawing as represented in a basic parts list
28Sheet Size and Format
Sheet Size and Format• Engineering and architectural systems
29Sheet Size and Format
Sheet Size and Format
• Metric system
30Typical Border and Title Blocks
Typical Border and Title Blocks
(1) Title block for A, B, and C size
(2) Title block for D, E, and F size
(3) Revision history block
(4) Margin drawing number block
(optional)
(5) Revision status of sheets block
(6) Application block (optional)
(7) Tolerance block
(8) Angle of projection block
(9) Rounded corners optional on
all sheet sizes
31Typical Border and Title Blocks
Typical Border and Title Blocks
(1) Title block for A, B, and C size
(2) Title block for D, E, and F size
(3) Revision history block
(4) Margin drawing number block (optional)
(5) Revision status of sheets block
(6) Application block (optional)
(7) Tolerance block
(8) Angle of projection block
(9) Rounded corners optional on all sheet sizes
32Basic Title Block Content
Basic Title Block Content
• Most common elements:# Company name
# Drawing number
# Title or part name
# Number of sheets
# Paper size
# Weight
# Scale
# CAGE code (Commercial and Government Entity)
33Basic Title Block Content
Basic Title Block ContentCompany nameDrawing numberTitle or part nameNumber of sheetsPaper sizeWeightScaleCAGE code (Commercial and Government Entity)
34Basic Title Block Content
Basic Title Block Content• Drawn and approved area:
# Project number
# Drawn by
# Checked by
# Approved by
# Issue date
35Intermediate Title Block Content
Intermediate Title Block Content• Tolerances and material information:
# Material specification
# Finish area
# General tolerances
36Application Block
Application Block
• Application block options:# Next assembly used on
# Final assembly used on
# Multiple “dash” numbers, if more than one part is
represented on the drawing
37Revision History Block
Revision History Block• Revision history block options:
# Revision letter (status)
# Date of revision
# Revision record number (ECO number)
# Initials for approval, etc.
38Parts Lists
Parts Lists• Parts list options:
# Part ID letter (mark)
# Quantity
# Part number
# Part description
39What do you see?
What do you see?
40
41
42