Getting solid out of compound

[hellsing48]

Hello everyone,

I'm am new to FreeCad and I am trying to get the solid out of this shape:



I tried making the box around it (bellow) and tried differnt ways to cut it using "Cutout for object", "Slice appart", "Make a cut of two shapes" but noting wokred.



Next I also tried to close the volume using boxes in order to get something like a shell and than use Part/Convert to solid option but that also didn't work out.

Is there any way to do it sucessfuly?

OS: Windows 10 Version 2009
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.24291 (Git)
Build type: Release
Branch: releases/FreeCAD-0-19
Hash: 7b5e18a0759de778b74d3a5c17eba9cb815035ac
Python version: 3.8.6+
Qt version: 5.15.2
Coin version: 4.0.1
OCC version: 7.5.0

[hellsing48]

I am still looking for a way to do this.

Any advice can be helpful.

[heda]

use surface wb to "fill the holes", then part wb to go from a watertight shell to a solid (partbuilder).

[hellsing48]

Thank you very much for answering. This is exactly what I am looking for!

I used "Filling" option to successfully cover the top.



However I'm struggling to do the same for the front side. Seems like it manages to cover only part of it.
Do you have any advice how to deal with this?

[hellsing48]

use surface wb to "fill the holes", then part wb to go from a watertight shell to a solid (partbuilder).

Ok I managed to fully close it with adding some additional lines.



Can you explain in a bit more details the second part, transforming to solid? How to go from a watertight shell to a solid?

[kisolre]

Part/Convert to solid

[hellsing48]

Part/Convert to solid

That is what I was trying to do. However I get the following error message:

19:47:22 Traceback (most recent call last):
File "<string>", line 2, in <module>
<class 'Part.OCCError'>: Shape is not a shell
19:47:22 Cannot convert Compound002 because Shape is not a shell.

Most likely it is because two surfaces can't be fully closed. Apparently the highlighted edge is causing the problem.



Any ideas how to deal with it? The file is attached.

Thank you for your help guys. This is really getting somewhere.

[TheMarkster]

I worked on this, but could never get a good solid that would pass check geometry before stopping.

If you zoom in really close you can see some issues where the edges are supposed to connect:

Snip macro screenshot-3208fc.png (15.66 KiB) Viewed 3287 times

I used lattice2 workbench downgrade to edges, explode compound to get that view.

I downgraded to faces in draft workbench, then part -> union on those faces. Somehow that magically fixed some of the gaps in some of the faces.

[hellsing48]

Wow brilliant, thank you TheMarkster

Thank you all for the help.

[kisolre]

Just out of curiosity - where did you get that shell from? Because the KCS_hull_SVA clearly has some problems...