ACAD Scale Problem

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ACAD Scale Problem

Postby plms » Wed Mar 31, 2004 12:17 pm

I've received an ACAD 2002 .dwg file from a client. It was created at a 30' = 1" scale. Listing existing line work was not making sense. Upon changing the linear units format to "Arch. ' & " it appears I am on the right track but list still indicates an incorrect distance. Upon running the "list" on the line it indicates it is ~ 12 times longer than anticipated. When drawing through command method the line is drawn ~ 12 times shorter than desired. What format change(s) am I missing.

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Postby Vincent Popish » Wed Mar 31, 2004 1:13 pm

Units are either in inches as in architetual drawings or in feet in engineering/surveying drawings. As there is a scale factor of 12 between the two, it is normal to have to scale the drawings by a factor of 12. This is true in autocad or MSCAD.
Vince Popish
Vincent Popish
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Postby rwhatman » Wed Mar 31, 2004 1:45 pm

If you scale the drawing by 0.083333333 it will be in feet units.

As you said Arch units are 12 times bigger . To get the scale factor
you divide 12 into 1 and you get 0.08333333
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Scale using reference

Postby Jerry Johnson » Thu Apr 01, 2004 10:44 pm

If you scale using a reference line .. i.e. 120 which you want to 10.. then the cad will use the full floating point scaling value. In theory.?
Jerry Johnson

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