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Topic ClosedHow do I turn these 2d shapes into 3d
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Aerodynamicguy View Drop Down
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Joined: 24.Apr.2015
Location: Australia
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Points: 5 		Direct Link To This Post Topic: How do I turn these 2d shapes into 3d
    Posted: 24.Apr.2015 at 05:01
Hello,

I have created the top view and side view but I cannot combine them to create a smooth 3d shell.

If you know of a tutorial on how to do this please share a link.

Otherwise how can I get these two 2d shapes to combine into 3d.

uploads/554801/How.dwg
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John Connor View Drop Down
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Joined: 01.Feb.2011
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Points: 7175 		Direct Link To This Post Posted: 24.Apr.2015 at 11:58
Extrude each shape in the proper direction then run the INTERFERE commnand.


Edited by John Connor - 24.Apr.2015 at 11:58
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>
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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 24.Apr.2015 at 12:04


One possible outcome.  I had to copy and union one of the 3D objects before running the INTERFERE command.
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>
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Aerodynamicguy View Drop Down
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Points: 5 		Direct Link To This Post Posted: 26.Apr.2015 at 09:19
I finally figured it out.

I had to extrude both shapes then line them up.  Then click intersect.

What I want to know now is how to make it rounded like a plane's fuselage.  Then I can test it with CFD.




Edited by Aerodynamicguy - 26.Apr.2015 at 11:01
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John Connor View Drop Down
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Points: 7175 		Direct Link To This Post Posted: 26.Apr.2015 at 13:19
Rounded?  You might try the Fillet command with the Chain option.
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>
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Aerodynamicguy View Drop Down
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Points: 5 		Direct Link To This Post Posted: 26.Apr.2015 at 14:37
Using the sideline and top line as a guide for the rounding.



Edited by Aerodynamicguy - 26.Apr.2015 at 14:37
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SEANT View Drop Down
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Joined: 09.Jan.2012
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Points: 31 		Direct Link To This Post Posted: 26.Apr.2015 at 16:48
It looks like you need to use surfacing techniques to get to that kind of shape.  Your original geometry looked symmetrical enough so I limited it to one quadrant.  I then used 4 copies with the SCULP command to get the solid.uploads/244286/HowBySurfQuad.dwg
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Aerodynamicguy View Drop Down
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Points: 5 		Direct Link To This Post Posted: 27.Apr.2015 at 01:24
Yes that is what I want.

When I typed in "SCULPT" it came up with "SURFSCULPT" I then clicked on the solid and clicked enter.  It said "solid creation failed, no watertight volume detected".

Have I missed a step?

Will this surfsculpt work if the object is flat on the bottom like a a non symmetrical airfoil?
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SEANT View Drop Down
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Joined: 09.Jan.2012
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Points: 31 		Direct Link To This Post Posted: 27.Apr.2015 at 09:14
Yes, the command name is SURFSCULPT, though the Ribbon icon just says "Sculpt".
The command just uses surfaces, and if the surfaces selected enclose a volume then a 3D Solid will be created.  It should not matter id one of the surfaces are flat.
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