Revit 2023 - Bad physical to analytical model conversion via Dynamo Script

[lukas.suehnel]

Hi,

in general I like the idea that the analytical and physical element has its own properties (material, section,...). It is also good that they are not linked to each other (coordinate wise). But the creation of the analytical model based on the physical elements is a pain in Revit 2023 and a huge step backwards in my opinion. 

The automatic generation of the analytical model (now via the Dynamo script) is way worse compared to the old automatic generation. No proper connection of the walls, bad connection between walls and slabs, ... . Not a single structure where I was able to use it and the result was good. 

I would like to show that on a very simple example: 4 walls + 1 slab on top.
The following picture shows the expected result in Revit 2022:

If you run the automatic conversion in Revit 2023 it looks like that:

I played with priorities and tolerances but without success. 

The automatic conversion even fails, if you run it only for the 4 rectangle walls (without the slab):

I attached the Revit 2023 file without the analytical model.

I would be thankful if someone could provide a setting for the analytical automation that works properly. I failed to find one. 
Apart from that I wanted to mention my experience with that tool as negative feedback - hoping for further improvements. 

Best Regards
Lukas

[karin.fourie]

I totally agree.  In the past, We used to do the model in Revit and then export to a 3rd party package for analysis and the integration worked beautifully.  Now, we have to start the model in the 3rd party package and then inport it eventually into Revit.  This is exactly the opposite of what Autodesk claims it allows us to do.  Now I can only start using Revit after the design has been completed and then only to issue a drawings.  

[catalin_lang · Accepted solution]

Hi @lukas.suehnel ,

We know about the issue and a solution will be provided soon.

[k.vanvolkinburg]

@catalin_lang Now that several months have passed, was a solution worked out for this?

[lukas.suehnel]

Hi,
I opened the same file in Revit 2025 and run the analytical automation again. For that specific file it is working much better now. So it definitely has been improved.
Apart from that I probably need to dig deeper into the settings of the tool. I have the feeling that it could generate better results for more complexe structures too. 
For now I close this thread.

Best Regards