A practical course in mechanical drawing for individual study and shop classes, trade and high schools (1912)
Willard, William Franklin, 1879- · Chicago : Popular mechanics company · leaf 124
r perspective representation, andfor practical purposes it has come to be eminently use-ful to the artisan in clarifying hidden constructions.Among draftsmen it has supplemented the freehandperspective sketch on account of the comparative easewith which the picture is made by the instruments. The… … 122 A PRACTICAL COURSE IN orthographically, make 30° to the horizontal in theisometric construction. c. Non-isometric lines of edges making other thanright angles must be laid ofif orthographically first andthen transferred to the isometric drawing. This dis-torts the true length of non-isometric…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
