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Multiple Chamfers

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alvie73

Mechanical
Feb 21, 2010
2
thread1103-122913

To continue from the aforementioned thread, how would I call out multiple chamfered corners? 4X 3 X 45deg seems a bit confusing. Also, if you have multiple fillets, which format would be correct? 4X R5, or R5 4X? Is it customary to use a dash? ex 4X-R5.
For structural I have previously used parenthesis: (4X) L1"x1". Is this customary?
Standard is not quite specific enought for my anal retentive mind.
 
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4X 3 X 45° would be correct. Alternatively you could dimension each portion separately as in 4X 3 in conjunction with 4X 45°

4X R5 handles the fillets.

ASME Y14.5M-1994 1.9.5
 
Occasionally, I'll spell out 'places' rather than use the 'X' in situations like this, but that has its own disadvantages. I'd definitely be carefull with () as it usually means reference, i.e. non mandatory/not inspected.

Posting guidelines faq731-376 (probably not aimed specifically at you)
What is Engineering anyway: faq1088-1484
 
alvie73

The symbol X could be the meaning of “Times” or “By”.

When used to imply the word “by”, a space must precede and follow the X symbol, for example a chamfer that has equal sides : 3 X 3 or 3 X 45° (not this 3X3 or 3X45°),

For a repeated feature, the word “times” is implied, a space must follow the X symbol only (no space precede the X symbol), take your case as an example : 4X 3 X 3 or 4X 3 X 45°.

You may find out here : 1.8.15 , 1.9.5.2 and 1.9.6 ASME Y14.5M-1994, hope it will help you.

SeasonLee
 
ASME standard define the uses of "X", and your callout (as noted by others) is not confusing if you invoke these standards. It only doesn't "look right" if one is not well versed in being able to read drawings. No offense to the OP (as I know nothing about you), but these are the sort of statements I have come to expect from marketing people.

Matt Lorono
Lorono's SolidWorks Resources & SolidWorks Legion

http://groups.yahoo.com/group/solidworks & http://twitter.com/fcsuper
 
Thanks all for your comments and references. ASME is quite specific.
To answer fcsuper: I have been in drafting for 10 years. I have gone from working with some old-school structural boys [(4) L1-1/4" x 1-1/4" x 6'8-1/2"] to civil to mechanical. Not only that, I have moved from the US to Australia (thank god for millimeters - wake up US!) where the AS standard is based on ISO (small "x" and a space either side for times or by). Which is also the way Solidworks handles multiple hole callouts. Our parent company is in the UK. So all of the drawings I reference use "-4 places" which is space intensive on a drawing and just annoys the crap outta me. And they use "TYP" for everything! ugh
So it is not that I am a moron or uneducated or inexperienced. Just trying to sort out the best way to do it so I can persuade everyone else in my office to do it my way. :)
 
If the chamfer or rad is the same size i always preffered 1x45 typ or 1x45 3 places with leaders denoting where
 
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