I am cleaning up a project from someone who used Revit like “CAD++”(13 floors all in separate models, random thickness walls such as 1 127/256"). I have 80+ types of walls. I have been tasked with rounding up or down to the nearest 1/2" thickness for the walls. They are wanting all the walls to be as generic as possible. How would I use dynamo to force all the random wall types to the appropriate wall types?
- Decide on your new wall thicknesses and put them in the model
- Measure all old walls widths decide if you’re going to change them to the nearest new wall size or the larger/smaller new wall size
- Assign new wall type dependent on your output of the last step
- Change walls
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Something like this would be a good starting point
- Get all walls
- Get the type for each wall
- Get the type’s thickness
- Divide the thickness by 1/24 (or 1/2 of 1/12 because Revit is decimal feet under the hood)
- Round that value to the nearest whole number and multiply it by 1/24.
- Generate a new wall type for each unique value by either copying your ‘default type’ or creating new types from scratch
- Change all wall types for each group of walls to the new new type.
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I don’t get your steps 4 and 5 …
If I have a 295mm wall in the model it’s gunna be rounded up to 300mm…
Why would I divide it by 1/24 just because Revit uses imperial?
Because the intent was to round to the nearest 1/2 inch, and 1/2 /12 is 1/24.
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Ahhh! Your wording threw me. 
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Thank you guys, I’ll start trying to put this together. I’ll keep you posted as its developed.