How to "cut" a surface inside another one?

ThatGuy · April 17, 2016, 06:57

Hi all,

I've been trying to do a 2d sim. Let's assume I want to model a big square, inside which I want to put another smaller square that acts as a heat generator.
If I make the sketch of a square inside a square and I extrude it, I will have a square region with a square hole in the middle. Is there a way to have the whole square surface with another square surface inside? If I do it by making two different sketches, the software automatically merges them. Any help? I don't think I have access to any other cad software, so the import/export trick is quite difficult.
If you can suggest other modelling ideas, I will hear them.

All the best

me3840 · April 24, 2016, 19:09

On your extrudes, set the body interaction property to none. Then do a boolean subtract of your geometries.

ThatGuy · April 27, 2016, 03:50

Quote:

Originally Posted by me3840

On your extrudes, set the body interaction property to none. Then do a boolean subtract of your geometries.

Thank you, I already figured that out.
Btw I think there's no need to do the boolean subtraction if the two sketches are very close (i.e. under the minimum tolerance for creating an interface).

April 17, 2016, 06:57	How to "cut" a surface inside another one?	#1
ThatGuy New Member Fulvio Join Date: Apr 2016 Posts: 8 Rep Power: 10	Hi all, I've been trying to do a 2d sim. Let's assume I want to model a big square, inside which I want to put another smaller square that acts as a heat generator. If I make the sketch of a square inside a square and I extrude it, I will have a square region with a square hole in the middle. Is there a way to have the whole square surface with another square surface inside? If I do it by making two different sketches, the software automatically merges them. Any help? I don't think I have access to any other cad software, so the import/export trick is quite difficult. If you can suggest other modelling ideas, I will hear them. All the best

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April 24, 2016, 19:09		#2
me3840 Senior Member Join Date: Nov 2010 Location: USA Posts: 1,232 Rep Power: 24	On your extrudes, set the body interaction property to none. Then do a boolean subtract of your geometries.