Drawing Tangent to Circle Arcs with Bow Compass

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“Draw one and one-half inch square about center of space. Divide AE into four 3/16” spaces, with scale. With bow pencil and centers A, B, C, D draw four semicircles with 3/8” radius and so on. Complete the figure by drawing the horizontal and vertical tangents as shown.” —French, 1911


French, Thomas E A Manual of Engineering Drawing for Students and Draftsmen (New York, NY: McGraw-Hill, 1911)


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