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Published on Jul 14, 2011
Given values: a = drive crank radius n = driven slot quantity p = drive pin diameter t = allowed clearance
Calculations: c = center distance = a / sin(180 / n) b = Geneva wheel radius = √ c² - a² s = slot center length = (a + b) - c w = slot width = p + t y = stop arc radius = a - ( p 1.5 ) z = stop disc radius = y - t v = clearance arc = bz / a
Adapted from: Walsh, Ronald A. Handbook of Machining and Metalworking Calculations. McGraw-Hill Professional, 2009.
Music: Buxtehude - Canzona in G major, performed by Harald Vogel.
Animation created in Autodesk Inventor 2012 Professional.