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Dual Dimensioning with Chamfers

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rpransch

Mechanical
May 7, 2009
2
Is there a specific rule on how to dimension a chamfer when using dual dimensions (inch/mm)? Is a callout of .050 X .050 [1.27] acceptable or is .050 [1.27] X .050 [1.27] the proper way?
 
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The Drafting Standards, GD&T & Tolerance Analysis Forum might be a better place to pose this question.
 
rpransch dual dimensioning is no long included in the ASME standard (ASME Y14.5 1994)(they think everyone's going to metric you know. i even called about it). but if i go back to my drafting day's and my drafting book, it should be .050 [1.27] x .050 [1.27]. or .050 [1.27] X 45deg. I as a draftsmen would know what you mean no madder which way you have it.

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If the edge in question is 90°, you can use ".050 [1.27] X 45°", otherwise use ".050 [1.27] X .050 [1.27]". While it may seem redundant, it is the least likely method to be mis-interpreted.

"Good to know you got shoes to wear when you find the floor." - [small]Robert Hunter[/small]
 
Thanks cadman1964 and ewh for your help! That is good information to know.
 
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