Posted by Dimebag on November 17, 2017 at 05:01:01:
In Reply to: Finding Spiral Angle from Spiral Bevel Sample posted by BillS on November 16, 2017 at 11:06:21:
If you need this angle to make a new gear set, then a simple protractor measurement on left and right tip edge and using a rounded mean value should be enough.
If your plan is to manufacture a missing member, that should mesh with an existing spiral bevel gear, then you should CMM measure a cloud of points on the flanks and therefore create a model of the existing gear, then reverse engineer it with regard to gear cutting tools and tooling available.
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