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gooooog

Hyperbolic paraboloid mesh problem

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gooooog

Hi i've got to grips quite well with mesh modelling but i cannot seem to be able to mitigate this shape, a hyperbolic paraboloid in 3D Cad (see attached image)... can anyone give me any guidance on this matter?

 

Thanks

 

Clive

hyperbolic-paraboloid.png

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kencaz

Convert to surface then thicken...

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gooooog

convert what into a surface? ive tried loads of different ways theres no guidance tips on youtube or the internet.

 

thanks

Clive

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JD Mather

Patch might be your solution.

ACAD 2012.jpg

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kencaz
convert what into a surface?

 

Clive

 

Your Mesh of course:

 

meshtosurf.png

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gooooog

im using it for a restaurant im designing for my uni project. how do I get hold of a path or can i import that picture somehow?

thanks

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JD Mather
...how do I get hold of a path

 

 

3dpolyline

 

You could import your picture, but I don't know what good that would do.

 

Attach here what you have completed so far if you can't figure it out.

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gooooog

they cannot be converted into surfaces for some reason i dont know whats goin on

 

thanks

paraboloide.dwg

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JD Mather

You are doing too much work - you only need the 4 boundary edges.

Create using 3Dpoly with C (for close) as your last point.

 

or

you could use Loft with Guide curves, but I think I would simply use a closed 3dpoly and Patch.

right click and select proper option that will allow you to select the 3Dpoly boundary)

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gooooog

this really isnt working... i must be doing something wrong

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JD Mather
this really isnt working... i must be doing something wrong

 

Do the cube wire frame.

start 3dpoly and click the boundary points (use C for close on last point)

Do a Patch (check right mouse button options for proper selection).

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JD Mather
this really isnt working... i must be doing something wrong

 

Attach your file here.

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SEANT

For something like this I’d recommend using the Loft methodology – though I think 2 lines is enough (see attached).

 

Patch is useful; though in this instance the resultant geometry is a trimmed surface. AutoCAD does not treat it as such, but the isolines suggest it – the Acis/Brep information confirms it.

 

So, even if the surface is within tolerance, the Patch will not have traits associated with the doubly ruled hyperbolic paraboloid, nor a regular (fully contained) UV Parametrization.

LoftVsPatch.dwg

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