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Old 04-26-2017, 03:36 PM
bobadame bobadame is offline
MetalShaper of the Month Feb 2015
 
Join Date: May 2009
Location: Fort Collins, Colorado
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It seems to me that shorter sweeps, maybe 20-24" long would be most useful. Slide the sweep along the surface to see where the surface either lifts of drops away which would show the exact point at which the curvature changes. This would allow you to measure exact arc lengths. In fact this method could be used to "digitize" a surface. For example, mark a grid on a door at 6" intervals, in X and Y. Find a sweep that fits the curvature along a line. Slide it up and down to find the tangent points of that arc, and so on vertically and horizontally.
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Last edited by bobadame; 04-26-2017 at 04:56 PM.
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