Create curve at intersection of 2 surfaces

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Johnny Geling
Posts: 56
Joined: Tue May 26, 2015 9:56 am
Location: Belgium

Create curve at intersection of 2 surfaces

Post by Johnny Geling »

Hello,

How can I create the curve at the intersection of 2 surfaces? The 2 surfaces are created as extrude from a open sketch. I want to keep both surfaces. See screenshot:
2023-04-01 16_10_49-Start.png
2023-04-01 16_10_49-Start.png (45.33 KiB) Viewed 392 times
I can't find a way of doing this.
The boolean intersection a the part workbench doesn't give anything as result. Just an empty viewport.

FreeCAD version:

Code: Select all

OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 0.20.2.29603 (Git)
Build type: Release
Branch: releases/FreeCAD-0-20
Hash: 930dd9a76203a3260b1e6256c70c1c3cad8c5cb8
Python 3.8.10, Qt 5.15.2, Coin 4.0.1, Vtk 8.2.0, OCC 7.6.3
Locale: Dutch/Belgium (nl_BE)
Installed mods: 
  * 3DfindIT 1.2.0
  * A2plus 0.4.55a
  * AnimationFreeCAD 1.0.0
  * ArchTextures
  * Assembly3 0.11.4
  * Assembly4 0.12.6
  * BIM 2021.12.0
  * CommandPanel
  * CurvedShapes 1.0.4
  * Curves 0.3.0
  * Defeaturing
  * dodo 1.0.0
  * DVA_WorkBench
  * dxf-library
  * dxf_library
  * DynamicData 2.46.0
  * ExplodedAssembly
  * FEM_FrontISTR 0.1.0
  * FreeCAD-GDT 0.20.1
  * GDML 2.0.0
  * Glass
  * IconThemes
  * Manipulator 1.4.3
  * MeshRemodel 1.8919.0
  * NikraDAP 2.0.0
  * nurbs
  * OpticsWorkbench 1.0.9
  * parts_library
  * PieMenu
  * Plot 2022.4.17
  * POV-Ray-Rendering
  * QuickMeasure 2022.10.28
  * Reinforcement
  * Render 2023.2.2
  * Reporting
  * SearchBar 1.0.1
  * SelectorToolbar
  * sheetmetal 0.2.49
  * Silk 1.0.0
  * SlopedPlanesMacro
  * symbols_library
  * timber
  * WebTools
  * Woodworking 0.21.30486
  * workfeature
  * workfeature-macro
  * yaml-workspace 0.1.2
Thanks for helping me?

Johnny
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thomas-neemann
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Re: Create curve at intersection of 2 surfaces

Post by thomas-neemann »

Johnny Geling wrote: Sat Apr 01, 2023 2:20 pm ...
so it should work

Bildschirmfoto_2023-04-01_17-17-53.png
Bildschirmfoto_2023-04-01_17-17-53.png (10.9 KiB) Viewed 351 times
Gruß Dipl.-Ing. (FH) Thomas Neemann

https://www.youtube.com/@thomasneemann5 ... ry=freecad
domad
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Re: Create curve at intersection of 2 surfaces

Post by domad »

Greetings to the Community!
Another way that may come in handy...(FreeCad is resourceful)
Attachments
Curve_on_surface.gif
Curve_on_surface.gif (672.02 KiB) Viewed 309 times
chrisb
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Joined: Tue Mar 17, 2015 9:14 am

Re: Create curve at intersection of 2 surfaces

Post by chrisb »

This technique is known as Wilfried's trick: viewtopic.php?p=165745#p165745.
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Johnny Geling
Posts: 56
Joined: Tue May 26, 2015 9:56 am
Location: Belgium

Re: Create curve at intersection of 2 surfaces

Post by Johnny Geling »

thomas-neemann wrote: Sat Apr 01, 2023 3:19 pm
Johnny Geling wrote: Sat Apr 01, 2023 2:20 pm ...
so it should work
This one in what I meant.
Thanks
Johnny
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