Banff Academy Sample Assembly

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Banff Academy Sample Assembly
Graphic Communication
Department of Technological Education
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Banff Academy Sample Assembly
Department of Technological Education

• Question - A pictorial view (not shown on slide
  show) and detail drawings of a gate hinge are
  shown.
• An incomplete Plan of the hinge bracket has been
  given. Draw -
• The completed Plan of the assembled hinge, and
  (DA8)
• A Sectional Elevation of the assembly on XX.
  (DA8)
• Show hidden detail in the Plan only

X
X
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Banff Academy Sample Assembly
Department of Technological Education

• Start by drawing the highest part of the
  assembly.
• This would mean drawing the left hand side of the
  Plan first.

X
X

• When this has been done draw the second top part
  of the assembly (in the case of this question
  this refers to the pin and has already been
  included in the given part Plan.

• Finish constructing the Plan by drawing the
  lowest part of the assembly. This part will
  include lines hidden by the top parts of the
  assembly.

• Finally darken the outlines to complete the Plan
  view.

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Banff Academy Sample Assembly
Department of Technological Education

• To draw the Sectional Elevation, project the
  position down from the Plan and complete the
  crate for the view to fit in to.

• Take each part individually and draw the outline
  where the cutting plane cuts the part. In this
  case the right hand part of the assembly has been
  drawn first.

• As nothing will hide any of these lines they can
  be darkened at this stage to make the drawing
  clearer to understand.

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Banff Academy Sample Assembly
Department of Technological Education

• The second part of the assembly to be added to
  the Sectional Elevation is the pin.

• When this has been located, darken the outlines
  to make the view easier to read.

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Banff Academy Sample Assembly
Department of Technological Education

• Finally draw the last part of the assembly in the
  section and darken any outlines.

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Banff Academy Sample Assembly
Department of Technological Education

• As the question asks that hidden lines are not
  added to this view, there is only one further
  task to do to complete the section view.
• Any sectioned view should show where the object
  has been cut, and this is done by cross
  hatching any cut surfaces.
• Cross hatch each full part in the same direction
  and at the same angle.

• Each of the other parts should be cross hatched
  at a different angle to that already used.

• Parts such as webs, pins, bolts, etc. do not
  become cross hatched, so in this case only two
  parts need to be done.

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Banff Academy Sample Assembly
Department of Technological Education

• The finished drawing should look like this.

X
X
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PowerPoint Presentation produced by John McRae,
2003