Using BoolTools

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Bob Serack

• March 28, 2022 00:30

Hello ...

I'm a new user to BoolTool2s.

I am using Sketchup 2017, WIndows 10.

I can sort of make it work.  Got a few questions.

When I do the YouTube example of two cylinders, all functions of BT2 works, Union, Difference, etc.

What I can't make work is this.  I have some a 2x4 wall sticking through a pitched roof.  I want to use a flat plan to trim the wall to the same angle as the pitch on the roof.

I get an error message.   The first selected object is the 2x4.  No error message.  I then select the flat plane.  Error message is ... the second selected object or one of it's internal objects is not a valid solid.  I have just drawn a rectangle using the rectangle tool and then grouped it.  As far as I can tell, it is a solid.

If I continue and remove the flat plane, I can see where it cut the 2x4.  However, I can't delete or discard the portion I want gone without exploding the 2x4 and then I can erase the part I want gone.  If I don't explode, it deletes the whole 2x4.  Is this normal?

What am I doing wrong?  Ask me any questions.

Thanks for listening ...

Bob

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  Dale Martens

  • March 28, 2022 15:09

  Hi Bob,  a solid is a water-tight volume.  A flat plane is not a solid.  For it to be a solid, you need to extrude the flat plane using the push/pull tool and make sure all of the geometry is contained in a group or component.  

  If the object is a true solid, it will show as a 'solid group' when inspected using the SketchUp Entity Info panel.

  I hope this helps!

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  Bob Serack

  • March 28, 2022 16:56

  Thanks for the simple explanation!

  And that worked like it should.

  Is there a non-destructive option?

  I guess just make a copy.

  Now I have to learn which is number 1 and which is number 2.

  I guess that is what CTL-Z is for!

  Thanks again ...

  Bob

   

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