Drawing Small Circles with Bow Instrument

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Bow instruments can be used for drawing small circles. Hold the the left hand and spin the nut in or out with the finger to avoid wear and stripping the thread. “Small adjustments should be made with one hand, with needle point in position on the paper.” — French, 1911


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


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