How to slice (subtract?) with more than one surface.

[Chris74]

I've just started learning AutoCAD and came across my first obstacle I don't know how to work around. I hope someone will help me with it.

Here's what I'm trying to do.

I draw two lines and two circles and then trim the excessive parts as in the picture (in general it can be an area composed of various types of lines, straight lines, arc, and likely with rounded corners).

Then extrude to the height 2. This makes 4 surfaces (green).

Now I build a solid 'around' the surfaces. In this example I draw a rectangle and extrude to the height 1 (red).

 

And my question is: how do I remove the part of the solid that's enclosed within the green surfaces? Subtraction doesn't work as I don't subtract solid. Slicing doesn't work either as it's more than one surfaces. For the same reason I can't turn it into a solid.

Any help will be appreciated.

 

 

[nestly]

Make the profile a closed polyline before extruding it. Note, being a closed polyline, you can use the MOde option during extrude to make it into either a surface that you can use to SLICE with, or a solid that you can use to SUBTRACT.

[ReMark]

Or you could just use the PRESSPULL command. No slicing, no dicing and no mess.

 

You basically pull the inner profile through the rectangular solid. It's as easy as it gets.