In this blueprint I was not able to find where the height of the point of the cone angle should be. enter image description here

Here's the original blueprints:
http://library.centerofthewest.org/digital/collection/WRAC/id/398/rec/8743 http://library.centerofthewest.org/digital/collection/WRAC/id/2664/rec/8855 http://library.centerofthewest.org/digital/collection/WRAC/id/397/rec/8742

How can I find the height of this point in relation to origin?


1 Answer 1


The height of the center can be found from the .208R+.003 dimension. The lowest point of this radius is dimensioned vs a nearby flat face with .025±.002.

The reason the center is not dimensioned directly from any flat face will be to do with the design intent and tolerance stackups. The dimension that matters, is the distance from the flat to the surface of the cone (.025±.002) - not the distance to the centre.

marked up print

  • 1
    $\begingroup$ You're right. I'll delete my answer despite the nice jaggy drop shadow detail. (greenshot.org). $\endgroup$
    – Transistor
    Sep 25, 2023 at 17:42

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