How can I achieve this form in Dynamo, see image attached?
I was trying to make one surface and twist it like so and then offset other surface and loft them to make a solid form, but surface disappears when I start moving its points in 3D.
If you have an existing model in some other cad software, you could use that to create a skeleton geometry that you can later import into Revit.
Once you have that in Revit, you could read it with dynamo and try something like the following:
Ideally you’d want to model the guiding skeleton geometry inside dynamo if possible.