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Boolean subtract - Holes through multiple materials

Anonymous

Boolean subtract - Holes through multiple materials

Anonymous
No aplicable

I have a sandwich of materials of different materials and hence different colours and wish to make a hole through them. For an example i have a sandwich of three sheets of material, red, green and blue through which i want to make a hole.

I create the three sheets, as boxes, on one layer and change the colour property of the layers to red, green and blue. I then create a cylinder. The model is shown as, "basic sandwich plus cylinder".

I undertake a boolean subtract of the cylinder from the three layers and the result is that the three sheets become one one blue solid with a silver hole, the colour of the cylinder. See "Sandwich with hole". From searching the web this is what i would expect but is not what i want.

I want the three sheets to retain their own properties and the hole in each to be the colour of the sheet.

The work around i have is to create three cylinders each the same colour as one of the sheets and undertake three boolean subtracts. 

The problem i have is greater than this as i have an array of say 30 holes through a sandwich of five different materials. My work around takes ages as i have first to copy the array to the same location 4 times, explode the array, and then perform 150 boolean subtracts!

There must be a simpler solution as in the aerospace industry this must be a daily task. 

Any help appreciated.

Bob

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Respuestas (8)

Patchy
Mentor
Mentor

It was made that way if you use SUBTRACT.

To get around this, you explode the cylinder to get a surface, then use command SLICE and pick the Surface option, this way the sheets still remain separated.

 

Capture.JPG

 

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JDMather
Consultant
Consultant

Can you create

1 box

1 cylinder and array the cylinder

Subtract

Slice the box into layers?

 

Or simply create a thinner box and copy it after "drilling"?

I suspect your layers must be something more complex than the example you attached here.


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Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


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JDMather
Consultant
Consultant

@Anonymous wrote:

 

...There must be a simpler solution as in the aerospace industry this must be a daily task. 

 

...

I doubt that the aerospace industry is using AutoCAD for this.

 

Since I have brought up the topic of software used - this is trivial in Autodesk Inventor.


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Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


Anonymous
No aplicable

Thanks for the speedy reply.

I exploded the solid cylinder and sliced it twice at the level of the junction of the three sheets.

How do i them make the hole using the sheets and the sliced surface of the cylinder?

 

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Anonymous
No aplicable
You are correct the problem is more complex as the sheets are not all the same size but i thought if i had a solution to the simple problem i could work the rest out for myself.
i tried your method but the array cannot be subtracted and has to be exploded first and if do I still get silver holes inside the coloured sheets.
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Anonymous
No aplicable
I don't have Autodesk Inventor and therefore can't use that. Like lots of things in life if i didn't have to start from here i wouldn't; but that's where we are.
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Patchy
Mentor
Mentor
Solución aceptada

Slice, pick all three sheets, then S for surface,pick the surface of the cylinder, enter, pick the sheets, and move the punched out parts.

 

Capture.JPG

 

 

JDMather
Consultant
Consultant

@Anonymous wrote:
I don't have Autodesk Inventor and therefore can't use that. ....

Autodesk Fusion 360 is very very inexpensive (not sure how it would do with this problem though.

But I have to imagine it would be easier than AutoCAD.


-----------------------------------------------------------------------------------------
Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


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