Lecture 5 - Cadkey 1

Fundamentals of Engineering – Honors – ENGR H191

Question of the Day

What is the Name of the Bridge in this Clip?

ANSWER:

The Tacoma Narrows Bridge

Bridge.mpeg

Lecture 5 - Cadkey 2

Fundamentals of Engineering – Honors – ENGR H191

Question of the Day (Part 2)What was the Cause of the Failure?

ANSWER:

A lack of damping in the design

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Fundamentals of Engineering – Honors – ENGR H191

Topics For Today

Scales and Scaling

Alternate Views

CK5 Problem #2 – Title Block

Quiz – Multi-view and pictorial drawings

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Fundamentals of Engineering – Honors – ENGR H191

Scaling a Drawing

Scaling a drawing is a process for making an object fit the dimensions of the display media

Scales are tools convenient to use when creating a drawing with a standard scale (conversion factor)

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Fundamentals of Engineering – Honors – ENGR H191

Types of Scales

Architect’s A measurement = 1’ 0” typically,

divisions are feet and inches

Civil Engineer’s 1” = 10’s of feet, divisions are 0.1’

Mechanical Engineer’s Some unit – 1”

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Fundamentals of Engineering – Honors – ENGR H191

Architect’s Civil Engineer’s Mechanical Engineer’s

Scales Scales Scales

Full size 1” = 0’1” 1” = 10.0’ 2” = 1”

Quarter size3” = 1’-0” 1” = 20.0’ 1 ½” = 1”

One-eighth 1½” = 1’-0” 1” = 30.0’ 1” = 1”

One-twelfth 1” = 1’-0” 1” = 40.0’ 3/4” = 1”

1/2” = 1’-0” 1” = 50.0’ 1/2” = 1”

3/8” = 1’-0” 1” = 60.0’ 1/4” = 1”

1/4” = 1’-0” 1” = 80.0’ 1/8” = 1”

3/16” = 1’-0” 1” = 100.0’1/8” = 1’-0”3/32” = 1’-0”

Three Common Types of Scales

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Fundamentals of Engineering – Honors – ENGR H191

Architect’s Scale –Major Unit = 1 foot Divisions = inches

Civil Eng. Scale –Major Unit 1 inch = 10’s of feet

Divisions = tenths

Mech. Eng. Scale –Major Unit = 1 inch Divisions = fraction of an inch

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Fundamentals of Engineering – Honors – ENGR H191

Example Uses

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Fundamentals of Engineering – Honors – ENGR H191Types of Scales by Construction

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Fundamentals of Engineering – Honors – ENGR H191

Open-divided

Full-divided

Type of Scale by Presentation

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Fundamentals of Engineering – Honors – ENGR H191

Your Scale

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Fundamentals of Engineering – Honors – ENGR H191

Conventional and Alternative View Arrangements

Review of “Conventional” Arrangement

Demonstration of “Alternative” Arrangement for Right Side View

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Fundamentals of Engineering – Honors – ENGR H191Convention on Labeling of Views

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Fundamentals of Engineering – Honors – ENGR H191Conventional Arrangement of Views

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Fundamentals of Engineering – Honors – ENGR H191Unfolding of Coordinate Planes - Conventional

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Fundamentals of Engineering – Honors – ENGR H191

R 1

R 2

Alternate Arrangement of Views for the Right Side

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Fundamentals of Engineering – Honors – ENGR H191Alternative Arrangement Views

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Fundamentals of Engineering – Honors – ENGR H191

Border Line

Title Block

Today’s CADKEY Project (CK5 #2)

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Fundamentals of Engineering – Honors – ENGR H191

Establish a File Name Format– i.e. EG H191 Proj #1

and/or EG H191 Dwg #7

Title Block Information

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Fundamentals of Engineering – Honors – ENGR H191

Parts and Patterns

The borderline and title block are saved as a pattern file so that they may be added to a part file. A part file can be composed of one part and multiple patterns. The reverse is not true. Once you have done your title block you can use it again and again by simply changing the title, date, Dwg # and File Name.

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Fundamentals of Engineering – Honors – ENGR H191

Today’s Assignment

Dwg 9 – CK5 #2 Title Block and Patterns with CAEG Due at end of class today

Dwg 10 – ML-1 Missing Line Problems with pictorials

Use Multi-view Sketch Paper and/or Isometric Sketch Paper

Due at beginning of the next lecture