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Effect of rounding of decimal places to part

jnanesh.sajjan
1-Newbie

Effect of rounding of decimal places to part

Hi gurus,

The requirement of this situation is very peculiar and annoying. But there is no other way for me, I need to check and do!

I have a part with drawing.The part is constructed to 4 decimal places. But while showing the dimensions in the drawing, I should show only 2 decimal places.


(Whenever I set the decimal place in the drawing to 2, it automatically updates the part. Which I dont want to happen)

Any quick and possible reply is very much appreciated.

Thanks and regards,
KS Jnanesha
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1 REPLY 1

The theory here is that the rounding changes the spec. of the part,
which it does.



Example, you design to 1/8" (0.125"). If shown at 3 places, it may take
a tolerance of +/-0.005 for a range of 0.12-0.13. If you round to two
places, not only does the nominal change to 0.13", the tolerance loosens
up to +/-0.01. The bottom of the range remains the same at 0.12, but
the upper limit increases to 0.14.


--
Doug Schaefer | Experienced Mechanical Design Engineer
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