Fry, Horace Pugh. [from old catalog] · Philadelphia · leaf 43
. . /. 1 and make 1, 2 equal to 1^ 2^measured on the arc by stepping off carefully with a bow spacer,make 2, 3=2^, 3^, etc. Draw the elements 1, 1^ 2, V, etc.,perpendicular to the base line and equal in length to the corre-sponding element on the vertical projection. A smooth curvedrawn through the… … ORTHOGRAPHIC PROJECTION Fig. 30. i y 3 / ,03 /SB 7 Fig. 31, ISOMETRIC DRAWING. 1. An Isometric Projection of a cube is one in which all lines of the cube are of equal length, (isos,equal + metron, measure). 2. Orthographic Projections, 3d angle, of a cube in three posi-tions are shown: first, in…
Mechanical drawing
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