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Old 02-02-2012, 07:09 PM   #1
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How do you draw up duct work


How do you draw up a 90 a transition and sets?? Where do I start what number goes first????
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Old 02-02-2012, 07:39 PM   #2
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How do you draw up duct work


This is a controversial subject.

Some are of the school of thought that the number 0 goes first, others that the number 1 is the first actual number and rightly should go first.

Thousands of deaths have occurred over the centuries due to the wars these semi religious concepts have stirred.

Walk carefully my friend in troubled waters such as these.

Andy.
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Old 02-02-2012, 08:44 PM   #3
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Originally Posted by AndyGump View Post
This is a controversial subject.

Some are of the school of thought that the number 0 goes first, others that the number 1 is the first actual number and rightly should go first.

Thousands of deaths have occurred over the centuries due to the wars these semi religious concepts have stirred.

Walk carefully my friend in troubled waters such as these.

Andy.
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Old 02-02-2012, 09:48 PM   #4
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How do you draw up duct work


Martin Riggs: On three, what do ya say?
Roger Murtaugh: Okay.
Martin Riggs: One... two...
Roger Murtaugh: Wait, wait, wait!
Martin Riggs: What?
Roger Murtaugh: Do we do it on three? Or one, two, three, then do it?
Martin Riggs: It's your ass, Cochise!
Roger Murtaugh: My ass, yeah. On three.
Martin Riggs: We go on three?
Roger Murtaugh: Yeah.
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Old 02-03-2012, 07:51 AM   #5
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How do you draw up duct work


one. it is the starting line.
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Old 02-03-2012, 10:33 AM   #6
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How do you draw up duct work


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How do you draw up a 90 a transition and sets?? Where do I start what number goes first????
Follow the air flow.

8X10 to 8X8.
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Old 02-03-2012, 12:21 PM   #7
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Figure your radius throat first. Than cut the cheeks.
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Old 02-03-2012, 08:35 PM   #8
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How do you draw up duct work


You have to be carefull.You can change the 90 into an88 1/2 if you switch from a #2 pencil to say a 2 1/2 pencil.
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