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When Extruding 3D Polylines, the top and bottom part is still open

rudirossouw
Community Visitor

When Extruding 3D Polylines, the top and bottom part is still open

rudirossouw
Community Visitor
Community Visitor

Hi Guys

 

I have been trying for 4 days now and can't seem to figure out what I'm doing wrong, I have a very odd shape (3D Polyline) that is angled and is made from splines.  For some reason when I Extrude, the top and bottom are still open. I have attached the drawing, I'm relatively new to autocad and any assistance will be greatly appreciated :cara_con_una_leve_sonrisa:

 

I Have attached the drawing.

 

Rudi

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Rliu_zzZ
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3D polylines can not pull solids


写的还行点“赞”;写的对点 "接受解答" 按钮.


yanlei.liu

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j.palmeL29YX
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It is the normal behavior of AutoCad, that the extrusion results in surfaces (instead of solid) if the source contour is not an exact plan shape. 

To be sure that this condition is fulfilled either use 2D-Polylines or create Regions from your 3DPolylines.

If you don't get Regions you can be sure, that the contour is not exact plan.

In this case you can extrude the 3DPolylines first to surfaces. Then try to "close" the open ends (e.g. using the surfpatch command or others) and then convert the surfaces into a solid (convtosurface or sculpt ccommand). 

 

 

[EDIT]: This >>example video<< added

Jürgen Palme
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j.palmeL29YX
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@Rliu_zzZ wrote:

3D polylines can not pull solids


 

Not quite right. 

You can extrude (and also presspull) a 3DPoly into a solid if all vertices are in the same plan. 

Jürgen Palme
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j.palmeL29YX
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@rudirossouw wrote:

 

... any assistance will be greatly appreciated :cara_con_una_leve_sonrisa:

 

 


 

Could you solve your problem in the meantime?
If not - I'll be happy to show you how to model it. But first, please post a file without the error shown in the attachment (I don't know your modeling goal). 

 

 

Jürgen Palme
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