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Does anyone know what causes these half-circles to appear at end-to-end pipe connections? (Please see attachment.) This is a straight piece connecting to a curved piece of pipe. The slopes are identical.
Many thanks.
Someone named castled071049 asked about this a few years ago....
http://forums.autodesk.com/t5/AutoCAD-Civil-3D-General/Crop-circles/m-p/3129914#M158207
Amazing what entering text into the search box will turn up.