Blueprint reading; a practical manual of instruction in blueprint reading through the analysis of typical plates with reference to mechanical drawing conventions and methods, the laws of projection, etc (1919)
Fairfield, Howard Parker, 1858-, Kenison, Ervin, Waite, Edward B. (Edward Broughton), 1873-, American Technical Society · Chicago, American technical society · leaf 221
country.Third-angle projection places a body in angle 3, and projects a topview on to the plane above it, and a front view on to the plane infront of it. This is true projection. Projection Methods. When a drawing is made by projection,an object is represented just as it would be seen if one eye… … Fig. 98. Visual Method of Finding Projection SO that one eye will come directly in line with one corner a, Fig. 98.Make a dot at ai where the line from the eye to the corner a passesthrough the glass. Next, move the eye until it is directly in linewith the corner h of the box, and put a dot at 6i…
Mechanical drawing · Blueprinting
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