Wallis, Rolland S. [from old catalog], Iowa state college of agriculture and mechanic arts, Ames. Dept. of engineering extension. [from old catalog] · Ames, Iowa, Engineering extension department, Iowa state college · leaf 66
ion of the center lines. The hexagon may then be readily constructedwithin or tangent to this circle, using the 30°-60° triangle as indicated.Other methods of constructing the hexagon, using only this triangle, arealso indicated—the given dimension in each case being shown as aheavy line, and the… … Centers shown thus (°) Points of tangency shown thusf**) Fig. 86.—Construction of tangent arcs. center and perpendicular to the line, and the distance of the center fromthe line will be equal to the radius. When two arcs are tangent, thepoint of tangency will be on a straight line connecting their…
Mechanical drawing
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