Views, ContinuedRevolvedsectionsRevolved sections are cross sections of an elongated form or object rotatedtoward the plane of projection to show its shape or contour.Drop a cuttingplane perpendicular to the axis of the object and revolve the plane 90-degreesaround a centerline and at a right angle to the axis.Retain the true shape ofthe revolved section regardless of the direction of the lines in the view.Superimpose the revolved section over the view and remove all originalsurface lines.Figure 3-55 shows correct and incorrectly drawn revolved sections.Figure 3-55.—A correct and incorrect revolved section of anallen wrench.Continued on next page3-60
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