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3.04-(0.3/2tanB) where B=30%

 

It is a formula on an engineering drawing we have been sent. (for information)

Guest Oct 17, 2017
edited by Guest  Oct 17, 2017
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4+0 Answers

 #1
avatar+78618 
+2

I believe you must mean "30° "  rather than "30%"

 

So we have

 

3.04 -  [ (.3/2) * tan (30°) ]  =

 

3,04 - [ .15 * (1 / √3 ) ]  =

 

3.04  -  [ .15 √3 / 3  ] =

 

3.04  -  .05 √3  ≈  2.9534

 

 

cool cool cool

CPhill  Oct 17, 2017
 #2
avatar
+1

Thank you.

Yes it is degree, not percent blush

 

We get an answer sililar to that, but it makes no sense on the drawing we have been sent.  

We just needed to make sure we weren't missing something.

 

Thank you very much. (I think this site might be a good find.....i'll bookmark it straight away cool)

 

Glenn

Guest Oct 17, 2017
 #3
avatar+78618 
+1

I wonder if it's supposed to be

 

3.04 -  [ .3 /  (2 * tan (30°) ) ]    =   2.78 

 

 

cool cool cool

CPhill  Oct 17, 2017
edited by CPhill  Oct 17, 2017
 #4
avatar
+1

Thats the answer we got.

It's one of those technical drawings that is WAAYYYYY over spec'd, with tolerances that are also way over spec'd

 

Thanks again for your help 

 

Glenn

Guest Oct 17, 2017

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