A Manual of Engineering Drawing
A Manual of Engineering Drawing
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In our eReader you can find the full English version of the book. Read A Manual of Engineering Drawing Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book A Manual of Engineering Drawing
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Of course angles in isometric drawing cannot be measured in degrees. In general to represent any angles, or combination of non-isometric lines, their orthographic view must be drawn first, Fig. 239. — Offset construction.
adding construction lines which can be drawn isometrically, and transferring the measurements from the orthographic to these isometric lines.
A circle on any isometric plane would be projected as an ellipse. It may be constructed from the orthographic projection by coordinates..., or by the method of conjugate diameters. A / w / \ \ / \ Fig. 240. — Offset construction.
four-centered circle-arc approximation sufficiently accurate for all ordinary work is made by drawing a perpendicular from the point of tangency, that is, the middle point of each side of the square. As the center of any arc tangent to the line at this point must lie on the perpendicular, the intersections of these perpen- Digitized by VjOOQIC 126 ENGINEERING DRAWING diculars would be centers for arcs tangent to two sides, Fig.
What to read after A Manual of Engineering Drawing?
You can find similar books in the "Read Also" column, or choose other free books by Thomas Ewing French to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Of course angles in isometric drawing cannot be measured in degrees. In general to represent any angles, or combination of non-isometric lines, their orthographic view must be drawn first, Fig. 239. — Offset construction.
adding construction lines which can be drawn isometrically, and transferring the measurements from the orthographic to these isometric lines.
A circle on any isometric plane would be projected as an ellipse. It may be constructed from the orthographic projection by coordinates..., or by the method of conjugate diameters. A / w / \ \ / \ Fig. 240. — Offset construction.
four-centered circle-arc approximation sufficiently accurate for all ordinary work is made by drawing a perpendicular from the point of tangency, that is, the middle point of each side of the square. As the center of any arc tangent to the line at this point must lie on the perpendicular, the intersections of these perpen- Digitized by VjOOQIC 126 ENGINEERING DRAWING diculars would be centers for arcs tangent to two sides, Fig.
What to read after A Manual of Engineering Drawing?
You can find similar books in the "Read Also" column, or choose other free books by Thomas Ewing French to read onlineMoreLess
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