Page 252 - Engineering drawing from first principles using AutoCAD

Technical drawinqs for industry 245
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PART 2

Figure 10.34 (continued)

not to cross-hatch assembled threads and reduce the width of the cross-hatching on
the control knob. The elbow casting also has a thin web which should not be cross-
hatched.

For a third angle assembly, simply draw the plan above the sectional view.