Split Face of Step form underside

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b_clive
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Split Face of Step form underside

Post by b_clive »

Dear all,

Is there a way I can split the face of the step from its underside?

https://drive.google.com/file/d/1_Jcw11 ... sp=sharing
https://drive.google.com/file/d/1YNNFLJ ... sp=sharing
Nicolas L
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Re: Split Face of Step form underside

Post by Nicolas L »

Hello

Just to be sure, something like that ?

Regards

Nicolas L
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b_clive
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Re: Split Face of Step form underside

Post by b_clive »

Hi Nicolas,

Yes exactly. Can you explain in brief how you finished up with this result?
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Re: Split Face of Step form underside

Post by Nicolas L »

The method that I used:

- Building extractor (manual and semi-automatic extraction of the top side of each step)
- I grouped all separated mesh to make a compound
- I separate the compound mesh from the cloud using a distance (for instance 5 cm) - Clean Separate with...

PS: create a suitable UCS if necessary beforehand (like Wall + Wall).

Another way if you want to keep the top steps with the rest of the cloud but without the downside part:
- create a quick mesh (Scan to mesh)
- Separate the bottom side of the stairs, use Clean Separate in the Surface modeling menu (camera position -Z and select the option back, only visible triangles according to the normal direction of the created mesh)
- Keep cleaning the mesh if necessary to focus on the main part
- Smooth
- Separate the point cloud with the mesh (5 cm for instance)

Regards

Nicolas L
b_clive
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Re: Split Face of Step form underside

Post by b_clive »

Hi Nicolas,

Appreciate your reply. Will try it out and let you know how it goes.
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