and then turn it through an angle of 90°,still keeping eg horizontal, we obtain Fig. 65. The verticalprojection in this figure is what is called an isometrical projec-tion. The edges of a cube are all of equal length, and it will beseen that they appear equal in the figure, consequently the… … ISOMETRICAL DRAWING. 113 which represent length and breadth make angles of 30° witha horizontal, and those which represent thickness are vertical. 114. The edges of the cube being indined to the plane onwhich they are represented, appear shorter than they actuallyare on the object, but since they…
Mechanical drawing
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