Technical Drawings

Define/Describe each of the following drawings.

Explain the purpose of each one.

Include an image of each type of drawing as well.

1. Pictorial drawing

2. Isometric drawing

3. Orthographic drawing

Web sites:

Wisc-Online

http://www.wisc-online.com/Objects/ViewObject.aspx?ID=ENG20004

Millwood High School Web site:

http://www.millwood.ednet.ns.ca/tech/ext10/drafting/pictor/index.htm

Charles Sturt University: Workplace Communication

http://hsc.csu.edu.au/ind_tech/design/workplace_comm/working.html

Pictorial vs Orthographic Drawings

http://sketchbooks.engr-tech.com/SketchingBooks/Sk-Bk-4/CH4-Sk-Bk-v4.pdf

Engineering Drawings

http://dspace.mit.edu/bitstream/handle/1721.1/36391/2-007Spring-2003/NR/rdonlyres/Mechanical-Engineering/2-

007Design-and-Manufacturing-ISpring2003/71E88710-0711-46CC-ADE2-8F164F577748/0/drawings.pdf

Grade 7 Technology: Appendix A

http://www.ed.gov.nl.ca/edu/k12/curriculum/guides/teched/gr7/g7_appendix-a_june2002.PDF

Alphabet of Lines

A. What is the purpose of the Alphabet of Lines?

B. Describe and draw each of the following lines:

1. Object line (Visible line)

2. Hidden line

3. Center line

4. Dimension line

5. Extension line

6. Section line

Web sites:

Wisc Online:

http://www.wisc-online.com/objects/ViewObject.aspx?ID=mtl17903

Scribd.com

http://www.scribd.com/doc/18057967/Alphabet-of-Lines

fostercad.com

http://www.fostercad.com/Notes%20PDF/The%20Alphabet%20of%20Lines.pdf

Grade 7 Technology: Appendix A

http://www.ed.gov.nl.ca/edu/k12/curriculum/guides/teched/gr7/g7_appendix-a_june2002.PDF