sketching techniques. purposes of sketching think through a design – look at it instead of just...
TRANSCRIPT
Sketching Techniques
Purposes of Sketching• Think through a design – look at it instead of
just thinking about it• Communicate your ideas – let others look at
what you are thinking• Uses lines and symbols to describe a
design – it takes a lot of words to describe even a simple shape Draw a 3” horizontal line
Draw a 3” line extending from one end of the horizontal line at 45 degreesConnect the ends of the two lines with a third line
Common Uses of Sketching
• Brainstorming ideas– Piggy backing on variations
• Communicate– Pass on information
• Document Dimensions– Size of surfaces and features
Advantages of Sketching
• Convenient
• Inexpensive
How many words would it take you to describe this pair of pulleys?
There would be a lot of assumptions and prior knowledge necessary for someone to be able to draw this from a verbal description
Sketching Techniques #1
Sketching a Line
1)
2)
3)
Sketching Techniques #1
Lines (if you didn’t have graph paper)
Ver
tica
l L
ine
Horizontal LineInclined Line
Run
Ris
e
Sketching Techniques #1Sketching a Circle in 5 steps
The lines in steps 1 – 5 should be thin and light
(barely visible) “Construction Lines”
1) Set up the diameter
2) Square in the diameter
3) Sketch diagonals
Sketching Techniques #1Sketching a Circle
The lines in steps 1 – 5 should be thin and light
(barely visible) “Construction Lines”
4) Identify triangle centers
5) Sketch arcs
Alphabet of Lines #2
Construction
Object
Hidden
Center
Alphabet of Lines
Construction Line
Alphabet of LinesObject Line
Alphabet of Lines
Hidden Line
Alphabet of Lines
Center Line
Image Resources
Microsoft, Inc. (2008). Clip Art. Retrieved October 20, 2008, from http://office.microsoft.com/en-us/clipart/default.aspx