technical department - boclair academy
45° Bounce Line (45° Projection Line)
What is the Bounce Line?
45° Bounce Line
Project from a
Plan to draw an
EE.
Or project from
an EE to
construct a Plan.
technical department - boclair academy
45° Bounce Line (45° Projection Line)
Advantages of using the 45° Bounce Line.
Views are constructed by projected lines from existing views.
A plan can be projected from an end elevation or vice versa.
This makes them:
•Accurate.
•Quicker to draw.
•Less likely to have errors.
•Easier to construct.
technical department - boclair academy
45° Bounce Line (45° Projection Line)
How do we find the starting
INTRODUCTION
Position for the Bounce Line?
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Project breadth of Plan
to EE.
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Draw Bounce line at
45° through this point.
Find starting
position by lining
up the front edge
of the plan &
inside edge of
EE.
technical department - boclair academy
45° Bounce Line (45° Projection Line)
Given the Elevation and Isometric view of a shaped
block.
Draw both End elevations and plan of the block
projected from the elevation.
X
Plan
X
End Elevation
Elevation
End Elevation