Importance

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Abstract

Embodiments herein are directed to a spatially efficient, multipurpose drawing tool adapted for creating architectural design drawings and capable of drawing lines at regular 15 degree intervals without requiring mechanical reconfiguration. The multipurpose drawing tool is arranged, dimensioned and organized as four sides with a concave vertex opposite three convex vertices, one of which has an angle of 90 degrees and may be quickly manipulated to draw a line at any 15 degree interval, e.g., 15°, 30°, 45°, 60°, 75°, and 90°. The multipurpose drawing tool may also include an aperture having a diameter sized according to a scale for drawing arcs, such as a semi-circular arc depicting a door swing in scaled architectural drawings. The multipurpose drawing tool also addresses a problem of chipped or bent tips for drawing tool vertices (e.g., traditional 30-60-90 triangles and 45-45-90 triangles) by cleaving a portion of each tip.

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First Claim