From the course: AutoCAD: Developing A Prefab Unit

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Subtracting the structural openings

Subtracting the structural openings - AutoCAD Tutorial

From the course: AutoCAD: Developing A Prefab Unit

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Subtracting the structural openings

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- [Instructor] We're staying in our Developing The 3D Unit.dwg file. And I've left it in the same state as it was at the end of the last video. What we need to start thinking about now is how do we actually physically implement our structural openings in our pre-fabricated unit? So these are going to be our window here, and our door here. Now the problem we have is our external walls here are a 3D solid. Our window is also a 3D solid, and our door is also a 3D solid. They're all on the same layer, that A-STR WALLS. That's because they're all solids on the same layer and they're kind of coexisting. The way to look at this is if I go to the visual style here and change it to Conceptual, you'll see that you've got a solid within a solid, so that window solid is within the external wall solid. And the door solid is also within the external wall solid. So what we've got to do is we've got to subtract them. That's the…

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