From the course: AutoCAD: Advanced 3D Modeling

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Extrude and trim surfaces

Extrude and trim surfaces - AutoCAD Tutorial

From the course: AutoCAD: Advanced 3D Modeling

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Extrude and trim surfaces

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- [Instructor] Let's continue modeling frame elements. I'll just navigate over here to the head tube and zoom in. I'd like to manipulate the user coordinate system so that we can draw a cross-section of that tube. I'll start by typing UCS, enter. And I'll use the object option and click on this object right here. So now the red, green plane is oriented with respect to the geometry. However I need to manipulate the UCS a second time to get that plane in the proper orientation to draw the cross-section. In this case, I need to rotate it around the x-axis. So I'll type UCS, enter, x, enter, enter. This will automatically rotate it 90 degrees around the x-axis. So now the red, green plane is in the correct orientation. This time, because I'm anticipating just wanting to create a semicircle, I'll use the arc tool instead of the circle tool. I'll type a for arc, enter, and then I'll use the center option and specify the center of the arc right here. And then the start of the arc over here…

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