1 / 12

Introduction to Engineering Dimensioning - 1

This course provides an overview of units and measures in engineering, concepts of scaling and types of scales, and the application of these concepts in CAD. The focus is on detailing sketches, including dimensions, tolerancing, and working drawings.

franklink
Download Presentation

Introduction to Engineering Dimensioning - 1

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Introduction to EngineeringDimensioning - 1 Goals Understand units and measures Understand concepts of scaling and types of scales Turn in Lab 2 report

  2. Review 1st Semester • Oriented toward drawing • Learned the concept of sketching and projections – isometric and multi-view • Learned the concepts of section views • Learned how to achieve the above concepts in CAD 2nd Semester • Focus on detailing the sketches – dimensions, tolerancing and working drawings

  3. Units of Measure • Measurement of Length and angle are used in Engineering Graphics • Length • English - Inches, unless otherwise stated • Up to 72 inches – feet and inches over • SI – millimeter, mm • Angle (angular measurements) • Degrees, minutes, seconds (60° 30’ 20”) • Degrees in decimal (60.53°)

  4. Terms and definitions - Scaling • Scaling a drawing is a process for making an object fit the dimensions of the display media (e.g. paper) • Scales are tools used to scale a drawing while creating it – a conversion factor

  5. More on length measurements Three Common Types (Labels) for Scales

  6. More on length measurements Types of Scales by Presentation Open-divided Full-divided

  7. More on length measurements Types of Scales (Tools) by Construction

  8. 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

  9. Example Use – Architect’s Scale

  10. Example Use – Mechanical Engineer’s Scale

  11. Your Scale 1 2 3 4

  12. DWG1: Practice with scales • Assignment sheets provided in your course packet (labeled DWG 1A, 1B and 1C • Assignment sheets provide example solutions

More Related