Feature request to work with surfaces

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PaFe
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Feature request to work with surfaces

Post by PaFe »

Hello! I would like to propose a little idea to make easier some work in Freecad. Surfaces are very powerful to work with complex shapes. For example in some other CAD it is very fast to create feature extruding a sketch until a surface (also a non planar surface). A very simple way to create useful surfaces may be to add functions similar to those for 3D object "pad" and "revolution" specifically for 1D entities. So extruding (making a pad) a line we can get a plane, extruding an arc we can get a curved surface and also revolving a line we can get a very complex surface in a while... What do you think about? :)
Last edited by PaFe on Mon Jun 26, 2017 12:54 pm, edited 1 time in total.
Jee-Bee
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Re: Feature to work with surfaces

Post by Jee-Bee »

I'm not sure in this ...
I had the idea that Part workbench is stronger in surface modeling. You can check that maybe it worked out. maybe even there are some additions needed...
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NormandC
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Re: Feature to work with surfaces

Post by NormandC »

Feature requests should be posted in the Open discussion forum, not in Developers forums. Unless you are a developer and proposing strategies or code.

Anyway. Clearly the current crop of moderators does not care where posts are created. :roll:
chrisb
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Re: Feature to work with surfaces

Post by chrisb »

I think Part->Extrude.
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PaFe
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Re: Feature to work with surfaces

Post by PaFe »

NormandC wrote: Sun Jun 25, 2017 5:31 pm Feature requests should be posted in the Open discussion forum, not in Developers forums. Unless you are a developer and proposing strategies or code.

Anyway. Clearly the current crop of moderators does not care where posts are created. :roll:
Sorry if this is the wrong place
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PaFe
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Re: Feature to work with surfaces

Post by PaFe »

Jee-Bee wrote: Sun Jun 25, 2017 5:14 pm I'm not sure in this ...
I had the idea that Part workbench is stronger in surface modeling. You can check that maybe it worked out. maybe even there are some additions needed...
I'm sure there are yet some convenient way to make surfaces. Anyway, the idea is to make surfaces starting from a sketch, so the Part Design workbench should be the target, adding a kind of "surface pad" and "surface rotate" commands, making surfaces from sketch lines. Both Autodesk Inventor and Solidworks have similar features
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microelly2
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Re: Feature to work with surfaces

Post by microelly2 »

There is a method to create Draft Faceholder of faces.
These are "clones" of the face.
starting from these clones you can move rotate them and then sweep/loft through some f them to create new volumes.

I have played with offset pads some time ago
https://youtu.be/P6Z7qMgf0_E
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PaFe
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Re: Feature to work with surfaces

Post by PaFe »

To better explain i add a couple of screenshots.
I made a spline closed by a straight line and made a pad of this sketch emulating a non planar surface, then in the other plane I have sketched a circle and made a pad until the surface generated by the spline.
Screenshot_20170626_142437.png
Screenshot_20170626_142437.png (103.27 KiB) Viewed 1245 times
Screenshot_20170626_142424.png
Screenshot_20170626_142424.png (122.84 KiB) Viewed 1245 times
Now, if the only 3D object i want to draw is the cylinder pad ending with the shape given by the spline surface, it would be great to have a "surface pad" command to obtain only a surface by a non closed sketch. So, in this case I could draw only the spline and not the straight line to close the sketch. Then after making the cylinder pad ending to the surface, the surface visibility can be switched off.
Last edited by PaFe on Mon Jun 26, 2017 3:39 pm, edited 1 time in total.
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microelly2
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Re: Feature to work with surfaces

Post by microelly2 »

I think this kind of cutting is not possible at the moment.
You have to make a difference of two solids.
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PaFe
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Re: Feature to work with surfaces

Post by PaFe »

microelly2 wrote: Mon Jun 26, 2017 12:41 pm I think this kind of cutting is not possible at the moment.
You have to make a difference of two solids.
I know, but mine was an idea for a new feature request. The workflow could be much easier and powerful with surfaces by sketch
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