## Shop Essentials (Applied Mathematics) Training

Class Information
 Tooling U-SME classes are offered at the beginner, intermediate, and advanced levels. The typical class consists of 12 to 25 lessons and will take approximately one hour to complete.
 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. Difficulty: Beginner Number of Lessons: 18 Language: English, Spanish, Chinese

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

Vocabulary TermDefinition
A view drawn at a right angle to an angled feature of the part. Auxiliary views best illustrate angled surfaces.
A document containing all the instructions necessary to manufacture a part. The key sections of a blueprint are the drawing, dimensions, and notes.
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.
A section view resulting from an imagined cut that removes a small portion of the part exterior.
A line used to define the center of a symmetrical part. Center lines consist of alternating long and short dashes.
The area of the blueprint indicating any changes or revisions made to the part drawing or dimensions.
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.
The desired measurement of a feature on a part.
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.
The collection of lines illustrating the shape and features of a part.
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.
A section view resulting from an imagined cut down the entire length of the part.
A section view resulting from an imagined cut that removes only a portion of the part length.
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.
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.
An additional instruction or general comment added to a blueprint. Notes contain information about the material, finish, tooling, tolerances, etc.
A line used to define the shape and size of a part feature. Object lines are solid.
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.
A drawing that communicates the shape and size of an object through a series of related two-dimensional views.
A dimension that provides auxiliary information on a part, usually derived from or repeating other values in the print. Reference dimensions, marked with REF or appearing in parantheses, are not inspected.
A dimension that is marked to indicate the number of locations for the particular measurement.
A section view resulting from an imagined cut that removes and rotates a wafer taken from the middle of a part feature.
The area of the blueprint indicating the relationship between the drawing size and the actual part size.
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.
A view illustrating a rotated section resulting from an imagined cut in the part. Blueprints may contain a variety of different section views.
The area of the blueprint containing company name, address, part number, etc. Title blocks are unique to each manufacturer.
The acceptable variation from a specified dimension.
A dimension that is assumed to be the same for similar features of the part.