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Right.

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So let's get started with our drawing.

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And if you're on this blank screen that comes up when you first start AutoCAD, just go up here to New.

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And select.

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You can select this one.

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Okay.

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Okay.

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And click Open.

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And now we've got our blank drawing here.

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Try and make sure your AutoCAD is set up the way we set it up in the basic modules.

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So your trim mode should be set to one and in your options you've got your right click, mouse setup,

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that kind of thing.

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So we're all working the same way and let's begin drawing our building.

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So the first thing we're going to do.

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It's just create this external thick wall here and kind of the outline of our building.

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So it is just a rectangle which is 20m by ten meters.

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Again, if you're working in feet, you can go by these dimensions.

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If we go back and again, make sure your units are set up the way you want to work.

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I'm going to check this.

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Actually, this is inches.

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So I'm going to set this up in millimeters and decimal, okay?

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And I'm going to go up here and I'm going to click a rectangle.

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So we're just going to the basic like we did in the Basic Objects chapter.

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We're just going to create a rectangle and it's going to be this two corner rectangle.

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Now I'm going to start I'm going to start down here.

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This is our zero zero origin.

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Okay?

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So I'm just going to go somewhere near that.

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You don't have to start there.

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There's no reason why you'd need to start there.

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Really.

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I'm just going to go down here somewhere close and I'm going to left click.

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And now I'm going to pull out a rectangle and I'm going to type in our dimension.

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We're in millimeters, so it's 20,000.

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And then the tab key to switch to the other dimension.

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And you can see already we we're way out in terms of where we're zoomed.

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So I'm just going to type in the 10,000 and press enter and now I can double click my middle wheel to

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zoom extents and just zoom out a little bit with the wheel.

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And there we have it.

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So this is our building outline and it's pretty much at zero zero.

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Not that it matters, but I'm just because this X and Y symbol can sometimes get in, I'm just going

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to drag it out to about there.

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Okay.

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Just by using the move left, clicking right click and then drag.

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And that's a nice position for our building layout to start in.

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The external walls are 300mm thick, okay?

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And that's all the way around.

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So the easiest way to do that, to get a line 300mm inside this one would be to use our offset command.

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So I'm just going to left click offset and now it's asking us a distance.

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So 300 and and then select the object and click inside Simple.

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So now we have our external wall, which is 20m by ten meters.

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Again, if you were doing that in feet and inches, it would be exactly the same way, but you would

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use the one foot thickness here.

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Okay.

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So depending whether you're working in all inches or feet and inches, it's 12in or 1ft.

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But you just type that dimension in and then offset the same way.

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Again, I don't want to show every single measurement as feet and millimeters or it's going to get a

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bit long winded, but it is exactly the same.

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Whether you've typed in 300 or 1ft, you would have got similar results.

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And as long as you stick to the same thing, don't do one thing in millimeters and then start adding

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feet or start joining feet and adding millimeters, just whichever you're using, use that throughout

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and you'll be able to follow along Fine.

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So from now on, I'm just going to work in millimeters.

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But it should be obvious that if you're in feet, you just follow along with these measurements.

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So that's our external wall.

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We've got this 20m by ten metres and 300mm thick.

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And in the next chapter, we're going to look at putting some internal walls in here.

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But first, we want to save this drawing.

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Okay, So if you click on save and then give it a name, save it somewhere on your computer, That way,

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if AutoCAD crashes or something, you're not going to lose your work.

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So save.

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I mean, give it a name.

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In this case, building layout.

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Just click save.

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Okay.

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So I'll see you in the next chapter.