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Blueprint Reading 130

Shop Essentials Training

Class Information

ToolingU.com classes are offered at the beginner, intermediate, and advanced levels. The typical class consists of 12 to 25 lessons and typically requires at least two hours of instruction time.

Class Name:	Blueprint Reading 130
Description:	This class identifies the information communicated on a blueprint with emphasis on interpreting the part drawing. Includes an Interactive Lab.
Prerequisites:	none
Difficulty:	Beginner
Number of Lessons:	18
Language:	English, Spanish, Chinese

Below are all the competencies and job programs that contain the class Blueprint Reading 130. Job programs are our traditional class lists organized according to common job functions. Competencies are our latest job-specific curricula that help tie online learning to practical, hands-on tasks.

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Competencies
Machining Fundamentals Maintenance Fundamentals

Class Outline
Objectives What Is a Blueprint? Blueprint Contents Orthographic Drawing Blueprint Drawing Views Auxiliary and Section Views Types of Section Views Object and Hidden Lines Extension, Dimension, and Leader Lines Center and Break Lines Cutting Planes and Section Lines Blueprint Dimensions Types of Dimensions Uses of Dimensions The Title and Change Blocks Use of Scale Use of Tolerances Summary

Class Objectives

Describe the purpose of a blueprint.
Identify the three basic elements of a blueprint.
Define orthographic view.
Identify the six possible views of a box.
Explain the appearance and use of views.
Identify the types of section views.
Describe how to show part edges.
Identify how to indicate dimensions.
Describe the appearance and use of center lines.
Describe the appearance and use for break lines.
Identify how section views are displayed.
Identify the dimensions on the blueprint.
Describe descriptive dimensions.
Define functional dimensions.
Describe the appearance and use of notes.
Explain how to use scale information on a print.
Explain the tolerance information on a print.

Class Vocabulary
auxiliary view		A view drawn at a right angle to an angled feature of the part. Auxiliary views best illustrate angled surfaces.
blueprint		A document containing all the instructions necessary to manufacture a part. The key sections of a blueprint are the drawing, dimensions, and notes.
break line		A line used to define the boundary of an imaginary broken-out section or to shorten dimensions that are excessively long. Break lines are wavy and irregular.
broken-out section		A section view resulting from an imagined cut that removes a small portion of the part exterior.
center line		A line used to define the center of a symmetrical part. Center lines consist of alternating long and short dashes.
change block		The area of the blueprint indicating any changes or revisions made to the part drawing or dimensions.
cutting plane		A line used to define the location of the imaginary cut that creates the matching section view. Cutting plane lines consist of two short dashes alternating with a longer dash.
dimension		The desired measurement of a feature on a part.
dimension line		A line used to define the measurement of a part feature. Dimension lines consist of a solid line with arrows at both ends and a dimension in the center.
drawing		The collection of lines illustrating the shape and features of a part.
extension line		A line used to visually connect the ends of a dimension line to the relevant feature on the part. Extension lines are solid and are drawn perpendicular to the dimension line.
full section		A section view resulting from an imagined cut down the entire length of the part.
half section		A section view resulting from an imagined cut that removes only a portion of the part length.
hidden line		A line used to define a part feature that is not visible in a specific view. Hidden lines consist of a series of short dashes.
leader line		A thin line with an arrow head that is often positioned at an angle and is used to tie a dimension to a feature, especially when there are space limitations.
note		An additional instruction or general comment added to a blueprint. Notes contain information about the material, finish, tooling, tolerances, etc.
object line		A line used to define the shape and size of a part feature. Object lines are solid.
offset section		A section view resulting from an imagined cut that does not follow a straight line. Offset sections are used to include features that do not reside on a straight line.
orthographic drawing		A drawing that communicates the shape and size of an object through a series of related two-dimensional views.
reference dimension		A dimension that is not crucial for the effective use of the part. Reference dimensions are not inspected.
repetitive dimension		A dimension that is marked to indicate the number of locations for the particular measurement.
revolved section		A section view resulting from an imagined cut that removes and rotates a wafer taken from the middle of a part feature.
scale		The area of the blueprint indicating the relationship between the drawing size and the actual part size.
section line		A line used to identify the imagined cut portion of a part in a section view. Section lines appear as a series of diagonal lines drawn close together.
section view		A view illustrating a rotated section resulting from an imagined cut in the part. Blueprints may contain a variety of different section views.
title block		The area of the blueprint containing company name, address, part number, etc. Title blocks are unique to each manufacturer.
tolerance		The acceptable variation from a specified dimension.
typical dimension		A dimension that is assumed to be the same for similar features of the part.