cylinders

1
graphic communication - geometric solids
cylinders
getting started - equipment

• 30/60o and 450 set square
• H or 2H pencil
• drawing board with parallel motion
• ruler

2
graphic communication - geometric solids
cylinders
introduction

• cylinders are a circular solid generated by the
  revolution of a
• rectangle

3
graphic communication - geometric solids
cylinders
stage one draw the plan

• draw the outline of the plan
• divide the plan into twelve
• number the slices appropriately

4
graphic communication - geometric solids
cylinders
stage two draw the elevation

• project the generators down
• draw the complete elevation

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graphic communication - geometric solids
cylinders
stage three constructing the end elevation

• draw a 450 bounce line
• project the centre line
• project the breadths around from the plan

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graphic communication - geometric solids
cylinders
stage four constructing the end elevation

• project the heights across from the elevation

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graphic communication - geometric solids
cylinders
stage five number the generators

• number the generators for the end elevation
• the number should correspond with the plan

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graphic communication - geometric solids
cylinders
stage six drawing the end elevation

• plot the points where the height lines cross the
  generators coming from the plan

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graphic communication - geometric solids
cylinders
stage seven drawing the end elevation

• sketch, freehand the outline of the top and
  bottom ellipse

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graphic communication - geometric solids
cylinders
stage eight finishing the end elevation

• draw the remainder of the end elevation

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graphic communication - geometric solids
cylinders
stage nine the finished cylinder
plan

• the finished cylinder

elevation
end elevation