Design of Chords 1

[Michael Heppding]

Hi There,

need some help with a detail on the drawing please(atached). Its saying "1/6 Circum on Chord NON Accum." No idea what that means.

Anyone knows how to draw it up? It's obvuiously not just 60deg (360deg/6)

Thank you Michael

 

[ProgrammingPE]

I haven't seen this before, but my guess would be that it is "1/6 of the circumference", so 60 degrees. The tolerance is +/-0.015" as measured along a "chord". The tolerance is also "non-accumulative" meaning that each point needs to be within +/-0.015" which prevents an error of 0.03" at the second point then 0.045" at the third point, etc.

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