Mechanical DrawingA textbook introducing the basic theory, techniques, and uses of drafting for industrial arts and vocational high school students. |
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Page 30
... drawn all the layout lightly , darken the final object lines . OBLIQUE CIRCLES In oblique sketching , circles in the front view can be drawn in their true shape . However , oblique cir- cles drawn in the top or side views appear ...
... drawn all the layout lightly , darken the final object lines . OBLIQUE CIRCLES In oblique sketching , circles in the front view can be drawn in their true shape . However , oblique cir- cles drawn in the top or side views appear ...
Page 50
... drawn with the triangles , as de- scribed in the following section . TO DRAW LINES INCLINED 30 ° -60 ° AND 45 ° The 30 ° -60 ° triangle ( Fig . 3-20 ) has angles of 30 ° , 60 ° , and 90 ° . Lines inclined at 30 ° and 60 ° from ...
... drawn with the triangles , as de- scribed in the following section . TO DRAW LINES INCLINED 30 ° -60 ° AND 45 ° The 30 ° -60 ° triangle ( Fig . 3-20 ) has angles of 30 ° , 60 ° , and 90 ° . Lines inclined at 30 ° and 60 ° from ...
Page 249
... drawn from point O to point B. This is called the body diagonal . It is the longest straight line that can be drawn in a cube . In Fig . 12-5C , the cube is re- volved upward until the body diago- nal is horizontal , as shown in the ...
... drawn from point O to point B. This is called the body diagonal . It is the longest straight line that can be drawn in a cube . In Fig . 12-5C , the cube is re- volved upward until the body diago- nal is horizontal , as shown in the ...
Contents
TwentiethCentury Drafting | 1 |
Sketching and Lettering | 10 |
The Use and Care of Drafting Equipment | 42 |
Copyright | |
27 other sections not shown
Common terms and phrases
airbrush aircraft AMERICAN NATIONAL STANDARD angle ANSI arcs auxiliary view axes axis basic block bolts centerline CHAMFER chart circle circuit cone construction curve cutting plane cylinder developed diagram diameter dimension line distance drafter drafting drawn DRILL edge view electrical electronic ellipse engineer's scale engineering Figure finished flat floor plan front view gear graphic height hexagon hidden lines hole horizontal inch inclined intersection isometric drawing isometric projection layout letters locate point machine material measure metric metric system MICROINCHES multiview needed Note nuts object paper parallel pattern pencil perpendicular pictorial drawing pitch PLATE PROBLEM projection PROJECTION WELDS radius reference plane revolved rivets scale screw threads shape sheet shown in Fig shows side view sketch space spur gear square steel structural surface T-square tangent technical drawing technical pen templates thick three views tion top view triangle true length vertical WELDING SYMBOL width