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Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics (1895)

Spanton, J. Humphrey (John Humphrey) · London : Macmillan · leaf 25

An illustration from Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics, 1895, leaf 25
squares. If this is done, it is immaterial whether the edges ofthe drawing-board are right angles, because it will only benecessary to use one of its edges. For drawing parallel lines that are neither horizontal norperpendicular, hold one set-square firmly pressed upon the … Fig. 2 paper and slide the other along its edge. Geometrical draw-ing can be greatly facilitated by the proper use of set-squares,so it is advisable to practise their use. GENERAL DIRECTIONS When a problem contains many arcs of circles, it is advis-able to connect the arc with its corresponding…

Geometrical drawing

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