Additive pipe issue when sweeping a projected wire

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ksdsksd
Posts: 2
Joined: Sat Aug 06, 2022 2:07 am

Additive pipe issue when sweeping a projected wire

Post by ksdsksd »

Code: Select all

OS: Ubuntu 22.04 LTS (KDE/plasma)
Word size of FreeCAD: 64-bit
Version: 0.21.29936 (Git) AppImage
Build type: Release
Branch: master
Hash: 3db79c907cd7ef2f75597efdd82ae288ac23ad01
Python 3.10.5, Qt 5.15.4, Coin 4.0.0, Vtk 9.1.0, OCC 7.6.2
Locale: English/United States (en_US)
Installed mods: 
  * fcgear 1.0.0
  * Curves 0.5.4

I’m attempting to put a spiral into the uneven surface of a pan.

This works:
1. Create a spiral in the part workbench.
2. Project it onto the 2 faces of the bowl.
3. Downgrade the 2 projections in the draft workbench.
4. Upgrade the edges into a wire.
5. Create a sketch In Part Design
6. Additive pipe the wire.
But… The end of the spiral is not tangent to the hole in the middle of the bowl.
Proper sweep.
Proper sweep.
Screenshot_20220805_234052.png (263.27 KiB) Viewed 426 times

This does not:
1. Create a spiral in the part workbench.
1a. Translate spiral or bowl to appear tangent to the hole.
2. Project it onto the 2 faces of the bowl.
3. Downgrade the 2 projections in the draft workbench.
4. Upgrade the edges into a wire.
5. Create a sketch In Part Design.
6. Additive pipe the wire.
The wire looks proper, but when piping, it refuses to sweep properly.
Invalid
Invalid
Screenshot_20220805_233900.png (251.71 KiB) Viewed 426 times

Is there something I’m missing?
test.FCStd
(50.03 KiB) Downloaded 9 times
chrisb
Veteran
Posts: 53945
Joined: Tue Mar 17, 2015 9:14 am

Re: Additive pipe issue when sweeping a projected wire

Post by chrisb »

Hi and welcome to the forum!

It is best to attach the section to the path:
SnipScreenshot-da1b84.png
SnipScreenshot-da1b84.png (91.89 KiB) Viewed 424 times
Attachments
test_cb.FCStd
(475.57 KiB) Downloaded 14 times
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ksdsksd
Posts: 2
Joined: Sat Aug 06, 2022 2:07 am

Re: Additive pipe issue when sweeping a projected wire

Post by ksdsksd »

chrisb wrote: Sat Aug 06, 2022 12:46 pm Hi and welcome to the forum!

It is best to attach the section to the path:
SnipScreenshot-da1b84.png
Awesome, Thanks so much!!!
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