New Freecad / experienced Revit user questions and workflows on starting out

[dimitar]

I tried to do something today that I thought would be a quick test. Sort of a curtain wall. I've been having problems with the angled contraints(https://forum.freecadweb.org/viewtopic. ... 35#p333635), but otherwise, seems to work pretty well.

I've divided the angle f the arc and used the polar array for arraying a part around the facade.

vlc_eYGP8DDiwH.png (374.9 KiB) Viewed 2029 times

My original intention was to do a massing with area studies in Freecad and continue with the facade in Blender but I wanted to see what I can achieve within freecad. Seem like anything along a an extruded line or an extruded arc could work pretty well with the current toolset.

[paullee]

Interesting study!

[yorik]

Cool!

The thing I'm realizing more and more with curtain walls, is that the concepts actually covers a wide range of "grid-based" objects. Basically, you have a grid-like geometry, and you place objects on it (at its nodes, on its edges, or filling its faces).

That's basically what I started with the arch grid object. But it should be extended to get more generation methods and become more flexible.

Maybe we should actually think of the problem as two separate objects... One to define the grid-like geometry, and one to place/orient objects on the nodes/edges/faces...

[paullee]

A PR to improve Wall based on Sketch is made, hope it is good to merge - just notedin your another tutorial 'FreeCAD intro 002' that you use quite often Sketch to build wall.

Mod Edit: Added PR URL: https://github.com/FreeCAD/FreeCAD/pull/2614

[jmplonka]

....Maybe we could talk its author into implement export too?

@jmplonka ping

you're right, Having SAT export capability would be realy cool. But is it really necessary? Aren't there other file formats that'll do the same job like STEP?

[jtm2020hyo]

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phpBB [video]

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Very nice workflow, could you complete your project? I am interested in learn more. Subscriber here.

[chrisb]

I would like to see more of how it is done. At 4:45 parametricity seems lost for a while. The Chamfer shows an error.

[dimitar]

I would like to see more of how it is done. At 4:45 parametricity seems lost for a while. The Chamfer shows an error.

I think it may have something to do with the order of the elements. For example, if the parameters adjusted the shape so much that the number of edges is different than from the initial sketch, it started to fall apart.

[dimitar]

It's been a while since I've worked with Freecad, so I thought I can finally post the most complex thing I've done with Freecad yet - an axon section, for a competition a few years back. Freecad was perfect since the building's facade is arc-based, so one sketch with an arc drives the geometry. The diamond facade was done in Blender, then Rhino and imported into Freecad. The upper facade is a radial array. Out of the three tools - Freecad, Revit, and Rhino, the PDF output from Freecad was the best. It was, however, extremely slow. It took about 15 minutes to generate the view techdraw in order to export it. This was done in 0.18 official. I've tried opening the file in more recent versions, but it seems much has changed that I am getting some errors to generate the view in tech draw.

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My colleagues definitely thought I was a bit nuts, but no other software we use regularly handles arcs so well. Rhino breaks them down completely into curves, so the only way to do parametric sweeps would be to do in grasshopper, which is readable for the creator, but not comprehensible for anyone else, usually.

For the section, I was using pretty much parts for everything.

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It's been a while, and that I've forgotten most of what I learned, and I am starting a bit afresh. This time I am looking into using Freecad as my base BIM platform, or trying until it hurts. So far I am looking into a residential development in London, where I am laying out apartments. The idea is to have a few different types of apartments, in order to generate the buildings.

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[paullee]

My colleagues definitely thought I was a bit nuts, but no other software we use regularly handles arcs so well. Rhino breaks them down completely into curves, so the only way to do parametric sweeps would be to do in grasshopper, which is readable for the creator, but not comprehensible for anyone else, usually.

For the section, I was using pretty much parts for everything.

---

It's been a while, and that I've forgotten most of what I learned, and I am starting a bit afresh. This time I am looking into using Freecad as my base BIM platform, or trying until it hurts. So far I am looking into a residential development in London, where I am laying out apartments. The idea is to have a few different types of apartments, in order to generate the buildings.

Gorgous! Hard to believe FC beats others by Arc?

Hope you can share your latest development / studies here in near future. I experiment through using FC by building Villa Savoye, half-way through the Carpenter Center of Visual Art etc.

Maybe someone attempt Ronchamp in FC?

Any one thing missing in FC and a usable library of furnitures, equipments etc. Hope everyone can contribute a bit.