Principles of Drawing 23
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d:\N-Design\Des2-1.pm5 Seventh Print
Sectioning in two intersecting planes, in which one is shown revolved into plane of
projection, as shown in Fig. 2.19.
In case of parts of revolution, containing regularly spaced details that require to be
shown in section, but are not situated in the cutting plane; such details may be depicted by
rotating them into the cutting plane (Fig. 2.20).
2.6.3 Revolved or Removed Section
Cross sections may be revolved in the relevant view or removed. When revolved in the relevant
view, the outline of the section should be shown with continuous thin lines (Fig. 2.21). When
removed, the outline of the section should be drawn with continuous thick lines. The removed
section may be placed near to and connected with the view by a chain thin line (Fig. 2.22 a) or
in a different position and identified in the conventional manner, as shown in Fig. 2.22 b.
A
A
A–A X–X
X
X
Fig. 2.19 Fig. 2.20Fig. 2.21 Revolved sectionA
A
A–A
(a) (b)Fig. 2.22 Removed section