Orthographic Drawings
 
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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
Sketch Top, Front, and Right Side views of simple objects
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
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
Be able to correctly label projection planes and folding lines on orthographic views
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
Be able to complete the orthographic views of each object shown to include visible, hidden and center lines
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
Lecture material on three primary views and linetypes
Think-Pair-Share
Individual exercise
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.