B8    Prepare Intersection & Development Drawings

Information Sheet
return to Core Schedule

Representation of the shape and size of thin material used to make an object by folding, rolling, or forming, Also, geometrically describe the line of intersection of two planes.

1.  Define Development
See textbook page 846-848

In graphics, an unfolded pattern is termed as a development.  It is particularly important in sheet metal work where large and small scale air conveying ducts are cut from sheets of metal to form complex 3-dimensional geometric shapes.  These types of drawings are required to be very accurate in order to render themselves for pattern work.



 
2.  Hexagonal Cylinder

See textbook page 849


 
3.  Hexagonal Cone (truncated)

See textbook pages 851-852


 
4.  Cone (truncated)
See textbook pages 851

 

Go to exercise: Developmentals
5.  Understand the use of Intersections

 
6.  Demonstrate how to construct geometrically the line at which 2 cylinders meet at 90 degrees to each other 
See textbook pages 859-860


 
7.  Demonstrate how to construct geometrically the line at which 2 cylinders meet at 45 degrees to each other 

See textbook page 861



 

 
8.  Demonstrate how to construct geometrically the line at which a cone and a cylinder meet at 45 degrees to each other 

See textbook page 862


Go to exercise: Intersections