Practical engineering drawing and third angle projection, for students in scientific, technical and manual training schools and for ... draughtsmen .. (1897)
Willson, Frederick Newton, 1855-1939 · Princeton, N.J., The author · leaf 30
The spacing of the lines, in section-lining, depends upon the scale of the drawing. It may rundown to a thirtieth of an inch or as high as one-eighth; but from a twentieth to a twelfth of aninch would be best adapted to the ordinary range of work. Equal s^Dacing and not fine spacing 24 THEORETICAL…
Mechanical drawing · Lettering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
