Export Selected Surfaces

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Posts: 14
Joined: Tue Apr 27, 2021 4:25 pm

Export Selected Surfaces

Postby Juanilogo » Wed May 05, 2021 1:49 pm

I want to export the selected faces from different Solids (marked in green) as a .stl. keeping the relative position to each other.

I try to do it selecting them with Mouse+Ctrl. and clicking to export as .stl.

But unfortunately, I become an export of the complete solids where I selected at least one face, and not in the same relative position to each other.

How can I do that?

OS: Windows 10 Version 2004
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.24276 (Git)
Build type: Release
Branch: releases/FreeCAD-0-19
Hash: a88db11e0a908f6e38f92bfc5187b13ebe470438
Python version: 3.8.6+
Qt version: 5.15.1
Coin version: 4.0.1
OCC version: 7.5.0
Locale: German/Germany (de_DE)
Last edited by Juanilogo on Wed May 12, 2021 11:03 pm, edited 2 times in total.
Posts: 36226
Joined: Tue Mar 17, 2015 9:14 am

Re: Export Selected Surfaces

Postby chrisb » Wed May 05, 2021 3:16 pm

Hi and welcome to the forum!

I'm not sure if non solids are well defined in stl format, but FreeCAD can well create them:
- Use Draft->downgrade. Note that this doesn't preserve your object
- select the faces
- export.
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Posts: 510
Joined: Sat Dec 12, 2015 5:49 pm

Re: Export Selected Surfaces

Postby heda » Wed May 05, 2021 5:24 pm

if you have a heavy model, doing the full downgrade can be slow.

with curves wb "extract" you can pick up only the wanted faces,
and with part wb "compound" you can get it to act as one.

something like this
(15.82 KiB) Downloaded 5 times
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Re: Export Selected Surfaces

Postby openBrain » Wed May 05, 2021 5:27 pm

My favorite workflow is to select the faces then use Part->Create a copy->Sub element copy. Then Select the copies and export.