There are three (3) sections to the is unit, these include:
Sectional Drawings:
Assembly Drawings:
Detailed Drawings:
Sectional drawing are used to show inside detail of objects as though they have been cut along an imaginary line, to show important detail that may not be visible or hard to interpret using hidden detail lines.
This type of drawing could be used to show how the object has been constructed or details of the different parts that are represented in one drawing.
Some important things to remember with section are:
The section of the object that is cuts represented by hatching, this is usually drawn at 45° and about 5 millimetres apart.
If there are two parts that have been cut then the hatched lines on one part will slope the opposite way to each other.
You do not hatch webbing of components when cut through the webbing.
Search Youtube and Google to find more examples and information on creating and drawing sectional drawings.
Complete the following drawings from your textbook [drawings start on page 83] as fully dimensioned sectional drawings on A3 paper with completed title block.
Required Activities:
7.51 - Toolrest Base
7.51 - Pipe Stand
7.51 - Shaft Support
7.52 - Pipe Bracket
Extension Activities:
7.56 - Shaping Machine Clapper Box
7.57 - Toolrest Bracket
7.48 - Hobby Drill-Press Arm
Information:
Detail drawing are used to describe all the parts required in the construction of a product. This could include the drawing of each individual component required to manufacture the product and information on how each part is to be constructed.
You may be required to construct Top, Front, and Side views of all parts including dimension so that it is clearly understood what needs to be done to construct each piece. Dimensions of the components are included as well as the scale of the drawing and a material list showing dimensions and materials of each component.
NOTE: Either the Assembly Drawing or Detail Drawing must have a parts list of all components, see the bottom of this page for more information on how to construct a material list and what is required.
Required Activities:
7.60 - Toy Car
Extension Activities:
7. 64 - Turning Arbor Assembly
Search Youtube and Google to find more examples and information on creating and drawing orthogonal drawings.
Complete the following drawings from your textbook [drawings start on page 83] as fully dimensioned orthogonal drawings on A3 paper with completed title block.
Required Activities:
7.60 - Toy Racing Car
Extension Activities:
7.65 - Candle Holder
An assembly drawing shows all the parts of an assemble product, this may include sectioning component to be able to see how each individual piece fits together. This type of drawing shows the shape of components but few dimensions are included in the drawing.
It is often a requirement to include other drawings such as Orthogonal or Detail drawing that give details on the exact size and length of the different components.
NOTE: Either the Assembly Drawing or Detail Drawing must have a parts list of all components, see the bottom of this page for more information on how to construct a material list and what is required.
Search Youtube and Google to find more examples and information on creating and drawing orthogonal drawings.
Complete the following drawings from your textbook [drawings start on page 83] as an assembly drawings on A3 paper with completed title block.
Required Activities:
7.60 - Toy Racing Car
Extension Activities:
7.65 - Candle Holder
Material list are used to describe all the components that are required in the construction of the project. This list becomes part of the title block and is placed either above or below.
This list will include:
a number identity the component
a description of the component
the material of the component
the number of each item that is required.