Hexagonal Prism

Department Department

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TechnologicTechnological al

EducationEducation

Gra

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G

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Cut Hexagonal Prism - Question

The given views show the Front Elevation and Plan of a cut hexagonal prism.

Draw the following views :-

End ElevationSurface Development of sidesTrue Shape of cut

Department of Technological EducationDepartment of Technological Education

Finding position of End Elevation

Project the outline of the End Elevation from the Front Elevation and the Plan.

Department of Technological EducationDepartment of Technological Education

Identifying Generators

Number each of the points on each of the views.

Department of Technological EducationDepartment of Technological Education

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36

5 4

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6 1 2 3/5 /43/6 4/51/2

Finding Cut Surface on End Elevation

Project from the cutting line on the Elevation to find the cut points on the End Elevation.

Department of Technological EducationDepartment of Technological Education

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36

5 4

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6 1 2 3/5 /43/6 4/51/2

Join each of the points to find the cut shape on the End Elevation

When you are sure that the view is correct, darken the outlines of the End Elevation.

Drawing Surface Development (1)To draw the Development of the sides of the prism, project the base line and the height from the Front Elevation.

Department of Technological EducationDepartment of Technological Education

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36

5 4

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6 1 2 3/5 /43/6 4/51/2

Draw a vertical generator to indicate where the Development will start, and then step out the width for the six sides. Draw generators through each of these points. Number each of the generators starting with either the highest point or the lowest point.Project each of the cut points from the Elevation onto the appropriate Development generator and draw straight lines to indicate the shape of the Development.

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Drawing Development (2)The outlines of the Development have been darkened.

Department of Technological EducationDepartment of Technological Education

‘Fold lines’ have been added to the Development to indicate where the ‘bends’ have to be.

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36

5 4

2

6 1 2 3/5 /43/6 4/51/2

Drawing Development (2) The outlines of the Development have

been darkened.

Department of Technological EducationDepartment of Technological Education

‘Fold lines’ have been added to the Development to indicate where the ‘bends’ have to be.

1

36

5 4

2

6 1 2 3/5 /43/6 4/51/2

6 54321 6

Drawing True Shape of cut surfaceTo find the True Shape, project the cut points away from the Front Elevation at right angles to the cut.

Department of Technological EducationDepartment of Technological Education

Draw a datum line on the True Shape parallel to the cut line of the Front Elevation and at right angles to the lines just projected. Also add a datum line to the plan.

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36

5 4

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6 1 2 3/5 /43/6 4/51/2

Measure the vertical distances from the datum to each of the cut points. Transfer these sizes onto the True Shape.

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56

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Finishing the drawingTo finish the drawing darken the outlines of the True Shape

Department of Technological EducationDepartment of Technological Education

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