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Architectural vs Civil


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Posted

I know that this has been dicussed before, but I need a review.

In model space we draw at 1 to 1. Or 1 inch = 1 inch, 1 meter = 1 meter etc.

So why do civils scale by 12.

We get drawings from a couple different firms and some change their dwg so that 1=1. But others its 1=12.

Can't you just have your layout set to whatever scale you need and keep the model at 1=1?

Line types are typically 1, .5, etc. but in civil its 100, 500...

I obviously come from an architectural back ground and don't understand civils.:?

Posted

Model space objects should be draw FULL size even if they are the length of Boeing 777 Dreamliner, the QE2 or the I-684 corridor. Scales are assigned to viewports in our layouts.

Posted

Civil plans are for outdoors. We scale by feet because inches would be cumbersome. Architectural plans are for indoors, where feet would lead to inaccuracy.

 

If it's a problem, use xrefs and insert at the proper scale. That's what we do.

Posted

In the land of metric Civil is metres Architectural is mm scale factor 1000

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