Rolling Offset

Formula and source

True offset = sqrt(rise^2 + roll^2) (Pythagoras); travel = true offset * cosecant(angle) = true offset / sin(angle); run advance = true offset / tan(angle); multiplier = 1 / sin(angle).

First-principles rolling-offset trigonometry used in pipe fitting and conduit work (the Pythagorean true-offset and the cosecant travel multiplier); public, as taught in NCCER pipefitting and the standard fitter's references, by name.

Audience

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