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Distance with a tolerance in degrees?

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Garabetov

Mechanical
Jan 13, 2021
1
Hello fellow engineers,

How would you interpret this tolerance?
“3,65 ±1°/S”
I was going over a drawing sent from our fellow colleagues in China, its for an injection molding part. There are some distance dimensions with a tolerance in degrees over “S”. I don’t know how to interpret it. I assume S stands for symmetrical but that is only a guess. How do you apply a degree of tolerance in a liniar dimension ? Here is another exaple form the same drawing “Ф13,386 +0.05 -0.08 +0.5°/S”
There isnt a Datum called S and its not a symmetry dimension.

I opened my books on dimensioning intolerances and as you wloud imagine nothing there.
Cloud it just be some Junior students imagination? Even so how wloud you go about measuring such a thing?

Edit: (Boss told me to take the pics down sorry)
 
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In other words, they're not using any dimensioning/tolerancing standard?

John-Paul Belanger
Certified Sr. GD&T Professional
Geometric Learning Systems
 
Perhaps it is referring to draft? Maybe: 3,65 +1° (of draft) /S (Per side)?
 
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