Orthographics Drawings
When are Orthographics Drawings Covered?
Orthographic Drawings are introduced in ENGR111 during Classes 2.2, 3.2, and 11.1*
Auxilary Views for orthographics are introduced in ENGR111 during Class 9.1*
Orthograhic Drawings are revisited in ENGR112 during Class 16.2*.
*Explaination of Class numbering System
Objectives
| Class 2.2: |
Orthographic Drawings |
|
Name the three principle projection planes and what dimensions each shows |
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Sketch Top, Front, and Right Side views of simple objects |
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Know the correct pattern and line weight for visible, center, and hidden lines |
| Class 3.2: |
Orthographics in AutoCAD |
|
Know the three principle projection planes and the dimensions that each one shows |
|
Use AutoCAD to create orthographic views of objects |
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Know the correct line weights for printing drawings from AutoCAD |
| Class 9.1: |
Auxilary Views |
|
Be able to sketch true size views of oblique surfaces using auxillary views |
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Be able to correctly label projection planes and folding lines on orthographic views |
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Know what views to transfer dimensions from when drawing auxillary views |
| Class 11.1: |
Multi-View Drawings |
|
Be able to understand the three-view drawing layout to determine what lines are missing |
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Be able to complete the orthographic views of each object shown to include visible, hidden and center lines |
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Be able to complete the view using the alphabet of lines |
| Class 16.2: |
Orthographics in AutoCAD |
|
Know the three principle projection planes and the dimensions that each one shows |
|
Use AutoCAD to create orthographic views of objects |
|
Know the correct line weights for printing drawings from AutoCAD |
Class Agenda
| Class 2.2: |
Orthographic Drawings |
|
RAT - quiz |
|
Lecture material on orthographic projections and glass box concept |
|
Team exercise |
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Lecture material on three primary views and linetypes |
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Think-Pair-Share |
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Individual exercise |
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Team exercise |
|
HW assignment |
| Class 3.2: |
Orthographics in AutoCAD |
|
RAT - quiz |
|
Review of orthographic drawings |
|
RAT - quiz |
|
Team and Pair exercises |
|
Lecture material on drawing orthographics |
|
Paired exercise - 15 min |
|
HW assignment |
| Class 9.1: |
Auxilary Views |
|
RAT-quiz |
|
Lecture material on auxilary views |
|
Lecture material on steps to create auxilary views |
|
Individual exercise |
|
HW assignment |
| Class 11.1: |
Multi-View Drawings |
|
Lecture material on completing orthographic views |
|
Pair exercise - 15 min |
|
In-class HW assignment |
| Class 16.2: |
Orthographics in AutoCAD |
|
RAT - quiz |
|
Review of orthographic drawings |
|
RAT - quiz |
|
Team and Pair exercises |
|
Lecture material on drawing orthographics |
|
Paired exercise - 15 min |
|
HW assignment |
Why are Orthographic Drawings Important?
Orthographic Drawings represent three-dimensional objects in separate views on a two-dimensional paper. Completed drawings contain dimensions, notes, and specifications to convert the orthographic views into working design drawings. The manufacture needs all of the specific details in order to make an accurate and high-quality part.
Auxilary Views are used to create true size views of surfaces that do not appear true size in any orthographic view. These views are important when true sizes are necessary for pattern layouts.
- Class 2.2 Powerpoint
- Class 3.2 Powerpoint
- Class 9.1 Powerpoint
- Class 11.1 Powerpoint
- Class 16.2 Powerpoint
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