Blueprint Reading
The class Blueprint Reading provides a thorough understanding of blueprints and how to read them. Blueprints are documents that contain three major elements: the drawing, dimensions, and notes. The drawing illustrates the views of the part necessary to show its features. Together, the extension and dimension lines on the drawing indicate dimensions and specific tolerance information of each feature. The notes contain administrative and global information about the part. A blueprint contains all instructions and requirements necessary to manufacture and inspect a part.An understanding of how to read a blueprint is critical to manufacture and inspect parts to accurate specifications. Accurate blueprint creation helps to ensure that finished parts will function in a way that meets the original intent. After taking this class, users should be able to read a basic blueprint and determine the critical features on a part that need to be measured.
The training session will begin with a pretest to establish baseline understanding and prepare the learner for what to expect in the training material that follows. This module includes 17 lessons:
- Blueprints
- Orthographic Views
- Auxiliary Views and Section Views
- Types of Section Views
- Section View Types Review
- Object Lines and Hidden Lines
- Center Lines
- Dimension Lines and Extension Lines
- Phantom Lines, Leader Lines, and Break Lines
- Cutting Plane Lines and Section Lines
- Line Types Review
- Blueprint Dimensions
- Types of Dimensions
- Tolerances
- Notes: Title Blocks and Change Blocks
- Notes: Scale and Tolerance
- Final Review
By the end of this course, learners should be able to:
- Describe blueprints
- Describe orthographic views
- Distinguish between auxiliary views and section views
- Distinguish between types of section views
- Distinguish between object lines and hidden lines
- Describe center lines
- Distinguish between dimension lines and extension lines
- Describe phantom lines, leader lines, and break lines
- Describe cutting plane lines and section lines
- Describe blueprint dimensions
- Distinguish between types of dimensions
- Describe tolerances
- Describe the title block and change block
- Explain scale and tolerance information in the notes section