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TOPIC: Re:item balloons
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ronmcdonald (User)
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Re:item balloons 2 Years, 9 Months ago Karma: 1  
Another good question. Quickest answer is to say that this will be determined by your companies drafting standards. DOD-STD-100 standard and ASME Y14.2M may help but a quick glance thru them did not provide any informaton. However, David Madsen's excellent textbook "Engineering Drawing and Design" fourth edition, has some information located in Chapter 18: Identification Numbers. Size can range from .375" to 1" diameter determined by text size, all should be same size on the drawing and may end with an arrowhead, dot, slash or nothing. Leaders and extension lines types may vary but same type must be used throughout the drawing. Again, this may be an addition to your companies drafting standards and would help eliminate any further confusion.

Hope this helps!
 
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Ronald W. McDonald
Senior Engineering Technologist
T.D. Williamson, Inc
ADDA Board of Directors ron.mcdonald@tdwilliamson.com
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item balloons
msilva 2007/10/26 19:15
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ronmcdonald 2007/10/31 16:43
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