Open Source House with Open Source CAD?

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Kunda1
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Re: Open Source House with Open Source CAD?

Postby Kunda1 » Wed Aug 05, 2020 4:58 pm

thomas-neemann wrote:
Wed Aug 05, 2020 1:40 pm
paullee wrote:
Wed Aug 05, 2020 1:37 pm
GeoData /Geomatic Workbench used to impory OSM / GIS data, not sure if it works still.
i will try it, thank you.

i found this:

https://www.qgis.org/en/site/
Geomatic WB has been discontinued instead it's been merged back in to Trails workbench. Yes, QGIS is also an option.
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thomas-neemann
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Re: Open Source House with Open Source CAD?

Postby thomas-neemann » Wed Aug 05, 2020 5:05 pm

Kunda1 wrote:
Wed Aug 05, 2020 4:58 pm
ping
thanks for the hint, i'm looking at that.
thschrader
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Re: Open Source House with Open Source CAD?

Postby thschrader » Wed Aug 05, 2020 5:36 pm

How to handle the wall-panels?
As a complete "ifc-modul" with wood-frame, insulation, cladding?
How to model the insulation? Like the architect-drawings or as a simple cube?
I dont like the position of beam 4, the force must walk a curve, excentric loading
of the wall frames. I wonder how they fixed this at the construction-site.
wall_panels.JPG
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thomas-neemann
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Re: Open Source House with Open Source CAD?

Postby thomas-neemann » Wed Aug 05, 2020 5:40 pm

thschrader wrote:
Wed Aug 05, 2020 5:36 pm
ping

i suggest we take the 2d-drawings as inspiration. The experts here in the forum create the frameworks based on their experience.
paullee
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Re: Open Source House with Open Source CAD?

Postby paullee » Wed Aug 05, 2020 10:31 pm

thschrader wrote:
Wed Aug 05, 2020 5:36 pm
How to handle the wall-panels?
As a complete "ifc-modul" with wood-frame, insulation, cladding?
How to model the insulation? Like the architect-drawings or as a simple cube?
I dont like the position of beam 4, the force must walk a curve, excentric loading
of the wall frames. I wonder how they fixed this at the construction-site.
It seems from the picture
- the vertical wooden frame / posts are continuous from bottom up to roof edge
- i.e. not divided into 2 and interrupted at the horizontal wooden beam in concern
- and the wooden beam, is just like the architect's drawing, fixed on the edge of the posts / frame, to support the floor panel

Screenshot from 2020-08-06 06-27-00.png
Screenshot from 2020-08-06 06-27-00.png (873.43 KiB) Viewed 358 times
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vanuan
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Re: Open Source House with Open Source CAD?

Postby vanuan » Thu Aug 06, 2020 7:10 am

thschrader wrote:
Wed Aug 05, 2020 5:36 pm
How to handle the wall-panels?
As a complete "ifc-modul" with wood-frame, insulation, cladding?
How to model the insulation? Like the architect-drawings or as a simple cube?
I think it depends on use case.

1. If the goal is 3D visualization of finishes, a single simple wall may be enough

2. If the goal is to produce 2D drawings, it should be some kind of multimaterial wall.

3. If the goal is FEM analysis, model each thing separately.

4. If the goal is to produce BOM, you probably need a more detailed model, with screws estimation, plastering, etc

Maybe all 4 are required
carlopav
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Re: Open Source House with Open Source CAD?

Postby carlopav » Thu Aug 06, 2020 10:02 am

I agree that having the perfect model that suits every usecase can be something impossible to achieve.
Anyway - edit: if your goal is a quite good contruction model, but you want to keep some easy editing capabilities - you could also try the new experimental arch wall of the bim wb, and use it's basegeometry properties to substitute it's base shape with the accurate designed sub-components. It allows you to build the wall as a mechanical assembly, and automatically performs boolean operations on it (let's say to place windows and other components in it). Exporting in IFC is still rough but should output a correct BREP. I can try to make a small video out of it when I have a little freetime.
follow my experiments on BIM modelling for architecture design
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thomas-neemann
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Re: Open Source House with Open Source CAD?

Postby thomas-neemann » Thu Aug 06, 2020 10:09 am

carlopav wrote:
Thu Aug 06, 2020 10:02 am
ping
Yes that would be nice


Thomas
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thomas-neemann
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Re: Open Source House with Open Source CAD?

Postby thomas-neemann » Fri Aug 14, 2020 11:21 am

even if the house was not completely finished, it could be shown that freecad is able to take part in a bim process on the geometry level.

thank you all for your cooperation.
duncan.lithgow
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Re: Open Source House with Open Source CAD?

Postby duncan.lithgow » Mon Aug 17, 2020 7:42 pm

I notice the thread is very long and the information is very spread out. Would it be udeful perhaps to collect information on the OSArch wiki where we are trying do document just this type of workflow? I'd be happy to practice FreeCAD by working on a small aspect of the project (the stove? mezanine railing) if I have the other files organized and easy to find. Has anyone put them all somewhere?

I hope it's okay that I haven't read the whole discussion.

I made a dead wiki-link from this page which can be used. Maybe just a quick description of the FreeCAD project & the decisions made would be great https://wiki.osarch.org/index.php?title ... w_Examples