Subtract a tube from a wall

cpot · 13th November 2018, 04:29 PM

Hi,

I tried all your suggestions without success.

Therefore i tried to simplify the problem by creating a tube and 'knife' it in a single surface of the wall. i obtained the attached result (not a hole in the wall)

Did i do something wrong ?

Best
Chris

Andy · 14th November 2018, 04:22 AM

try doing the knife with a cylinder (i.e. enclosed 3d shape), not a tube.

cpot · 17th November 2018, 03:36 PM

Quote:

Originally Posted by Andy

try doing the knife with a cylinder (i.e. enclosed 3d shape), not a tube.

Yes i have done it with a cylinder and i have a circle in the wall but can't cut the surface...

Andy · 18th November 2018, 05:04 PM

Select the surfaces inside the circle and delete them. Or, Surface->cut-away-object if you want to put them into a new object.

Glenn Petersen · 5th February 2019, 09:07 PM

Create a tube that is longer than the wall thickness and the circular size you want. Move the tube to intersect and go thru the wall.
Select Wall first.
Then shift-select the Tube.
Goto Object menus-
Goto to Boolean
Select "Subtract"

This should make a perfect hole in the wall. It will create triangular sections on the wall allow for the cutout sections- these will still be grouped with the wall.

13th November 2018, 04:29 PM	#1
cpot Junior Member Member Join Date: Nov 2018 Location: Haute-Savoie, France Posts: 14	Re: Subtract a tube from a wall Hi, I tried all your suggestions without success. Therefore i tried to simplify the problem by creating a tube and 'knife' it in a single surface of the wall. i obtained the attached result (not a hole in the wall) Did i do something wrong ? Best Chris Attached Images

14th November 2018, 04:22 AM	#2
Andy Administrator Professional user Join Date: Jun 2003 Posts: 4,565	Re: Subtract a tube from a wall try doing the knife with a cylinder (i.e. enclosed 3d shape), not a tube. Last edited by Andy; 14th November 2018 at 04:25 AM.

18th November 2018, 05:04 PM	#4
Andy Administrator Professional user Join Date: Jun 2003 Posts: 4,565	Re: Subtract a tube from a wall Select the surfaces inside the circle and delete them. Or, Surface->cut-away-object if you want to put them into a new object.

5th February 2019, 09:07 PM	#5
Glenn Petersen Junior Member Junior member Join Date: Feb 2019 Posts: 2	Re: Subtract a tube from a wall Create a tube that is longer than the wall thickness and the circular size you want. Move the tube to intersect and go thru the wall. Select Wall first. Then shift-select the Tube. Goto Object menus- Goto to Boolean Select "Subtract" This should make a perfect hole in the wall. It will create triangular sections on the wall allow for the cutout sections- these will still be grouped with the wall.