boolean operation with geometric group

[lupusinfabula]

Hello.
I designed a wing by extruding a spline orthogonally on its own plane and now the set is like a " geometric group". I should now take this wing to a parallelepiped (in practice I should get a much larger parallelepiped of the wing that contains inside a part of empty space coincides precisely with the wing).
The problem is that if I try to use Boolean operations (you will be taking ...from...) it tells me that the "geometrium group" is not a valid element for that type of operation.
How could I solve this problem?
Thank you.

 

[mcbramby]

you have to create a solid of the wing............ merge surfaces and in part create the wing as a solid.
insert a new part and create the "parallelepipedo" that will contain the wing, right button on the part of the wing (solid) and subtract.
:wink:

 

[lupusinfabula]

first of all thanks for the prompt response.
creating the solid of the wing means that I have to do everything from scratch
or use a command that transforms the "geometrium group" into a solid?

 

[mcbramby]

first of all thanks for the prompt response.
creating the solid of the wing means that I have to do everything from scratch
or use a command that transforms the "geometrium group" into a solid?

"obviously" :wink: transforming the geometric group into a solid ........ :smile:

 

[lupusinfabula]

So once I join all the surfaces I get the object "union" precisely. then how do I create my body from that surface?
Thank you in advance!

 

[mcbramby]

insert a new part into your model then move into the workbench of the part (because if I have understood you already made the joint of the surfaces) use the button "close a superfice" (I attach the jpg file of the key) and give it in "pasto" joint with the closed and unique superfice of the wing.................... You will see that the solid of the wing is formed.:biggrin:

 

[lupusinfabula]

ok I managed to perform the removal operation, to summarize before doing the subtraction I have:
1) Geometric group
2)body1(ground union)
3)body2(prism)
the problem is that after the subtraction the " geometric group" remains and therefore I do not see the "empty space" in the prism because it continues to display the group precisely. . .

 

[mcbramby]

Can you post the file??? ? or any image

 

[mcbramby]

ok I managed to perform the removal operation, to summarize before doing the subtraction I have:
1) Geometric group
2)body1(ground union)
3)body2(prism)
the problem is that after the subtraction the " geometric group" remains and therefore I do not see the "empty space" in the prism because it continues to display the group precisely. . .

Maybe I figured out what you meant......... you have to hide the geometric group

 

[lupusinfabula]

I attach the immaginni of the "first" and of the "after" the operation of subtraction (they are hopefully readable). I tried to hide the geometric group but it's not that because it keeps me visualizing the wing (i.e. the one I got from the joint of the surfaces). .

 

[mcbramby]

seems to me ok the tree ................ The only thing I see is that you didn't hide the geometric group.
go with the dx button on "geographic group" or then "hiding/visual" ......... You should see the wing inside the prism, you can also make the prism transparent and see the whole shape inside.
otherwise if it is not a brick mail the zipped catpart file that gives it an eye