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Modelling and drafting in ARCHICAD. (Example: How can I model a Roof soffit/fascia?)

Moderators: ejrolon, Barry Kelly, Karl Ottenstein, LaszloNagy, gkmethy

By Jeffrey Shan
#271658
Hello Everyone,
My name is Jeffrey. I got a question here.

I made a framing wall by using wall accessory tool. On the floor plan, I got what I want. It shows a cross in every studs. But on the section I want these noggins to have a cross as well. So how can I do this? Is there other ways to do this? I have attached a image for help. Thx.
Attachments
01.JPG
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By Barry Kelly
#271678
Hello Jeffrey,
Unfortunately in section you will need to draw those crosses in manually.

Barry.
By Jeffrey Shan
#271706
[quote="Barry Kelly"]Hello Jeffrey,
Unfortunately in section you will need to draw those crosses in manually.

Barry.[/quote]

Hello Barry,
Thanks for your reply. I'm from Melbourne. Nice to meet you.
I have seen some detailed working drawings. You can see these noggings, roof trusses, even you can see the roof straps and roof battens in their sections. I believe they are all 3d models rather than 2d details. I wonder how they did? what was the tool they use? I want to reach that level. I've attached a screen shot of one WD. Hoping you can inspire me.
Attachments
WD.png
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By Barry Kelly
#271736
It is not impossible to achieve the cross in the timber but you either need to know a bit of GDL to script the timber beam objects or have an accessory that already has had this done for you.

I just found an old CADimage roof accessory and the roof battens do show a cross in 3D/section.
This is achieved by scripting in two triangular beams as well as the rectangular beam (it could be done with 4 triangular beams as well) to achieve the edges that form the cross.
I guess it could be done with a PLANE as well.

See attached image where I have turned off some of the parts of the beams.

The wall accessory that comes from Graphisoft is not scripted in this way and you would need to be pretty conversant with GDL to make the changes (if it is possible).


There may be other framing accessories available but I am not aware of them as I don't have a lot of need for them.

In my opinion it is far easier to get the bulk of the model done in 3D and then embellish the sections with a little line work or overlay objects to achieve the look you want.

You can also create your own beam and column complex profiles by creating 4 triangular fills to form the cross.
The trick is to duplicate your fill and give it a new name as each adjacent fill must be different or they will simply merge back into one.
i.e. they must be the same fill but with different names.
But of course this means you must place each beam and column individually to form your frame.

Barry.
Attachments
accessories_beams.jpg
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By James B
#271746
Barry Kelly wrote:You can also create your own beam and column complex profiles by creating 4 triangular fills to form the cross.
The trick is to duplicate your fill and give it a new name as each adjacent fill must be different or they will simply merge back into one.
i.e. they must be the same fill but with different names.
But of course this means you must place each beam and column individually to form your frame.


Since AC18, the same Building Materials don't merge within Profiles, so you can draw a rectangle, and split it twice diagonally to create the "X" in section - no need to change their Building Materials.


James.