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Now that we understand the basics of the Pencil tool and how to draw in both 2-D and 3-D, we can also use that Pencil tool to refine existing objects, in other words draw on top of an object that's already been created. So I have this, a simple box that we've created and if we want, we can use the Pencil tool to draw on the actual box. So in addition to being able to snap to our axes, we can also snap to faces. So I can actually draw on a face.
We can snap to edges. Notice how when I get close to this edge, it kind of follows that along. Now there are also endpoints and halfway between the endpoint somewhere around here is the Midpoint. So I can snap to any one of those Faces, Edges, Endpoints, or Midpoint. So I'm actually going to snap to this Midpoint here and I'm going to left-click, draw a line and if I want, let's go ahead, and just cut this in half. So I'm going to go straight down, snap to the Midpoint on the opposite side, and then click again.
Now what I've done is I've actually divided this one face into two faces. So if I hit my Spacebar, I can select either face on either side. Now if I select one of these faces and hit the Delete key, you'll notice I've created a hole, and if I want I can use that hole as a place to extend my drawing. Now one of the things I also want to show you about the Line tool is that we can type in specific dimensions. So if I'm, for example, drawing a line out this way, notice how in the bottom corner here I get a length value.
So if I want, I could say well, I want this to be 8 feet long, so all I have to do is type 8 feet, hit Enter, and I know that this is exactly 8 feet long. So once I have that, then I can just use that to draw the rest of that box here. Now I have an 8 foot extension here, and let's just go ahead and finish this off. And Again, I'm just using snap and inferencing to finish out this box. So once I've done this, you'll see how I've created the nice little extension to my box and I have to kind of trim it into this L shape.
But I also have these left over edges. So if I go back to my Select tool by hitting the Spacebar, I can actually select that edge and just hit Delete, and now this won't delete anything, but the edge, it will actually leave this face here, and it'll also give it kind of a nice clean look. So I can do that Again, on the side, just left-click to select and then hit the Delete key. Now we also have what's called an Eraser tool which will do the same thing. So if we want, we can select Eraser and then just position it over that and erase it.
So that's just that's just as same as doing select and delete. Now once I have this, I can also draw directly on a face. So, for example, if I were to draw, say here, I could actually draw on this face and just draw another box and I could use that as a way to extend my object.
So as you can see by drawing on faces, edges, midpoints, and using those, we can actually add to-- and add further complexity to our models.
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