Do you have the buttons in your UI as shown by @Antoine_Guillo ?
Which formats are available to import through file import?
Which UE5 version do you have? 5.0.1? Did you download it from launcher or rebuild from source?
did you activate both the Datasmith importer and Datasmith CAD importer plugins?
I found some older post recently and it seems like if you compile engine from source, you don’t get CAD import since epic couldn’t include those for some copyright reasons.
I guess I may need to have 2 engines. One from launcher to do CAD import, and my main engine that is used for the project that is compiled from source. Or hopefully we can start using .udatasmith directly.
Yes if you build from source you will not get CAD import.
.udatasmith import works in compiled engine. So if you use solidworks or rhino, you can use the exporters to generate .udatasmith files from those softwares.
If you use another CAD format you will have to either:
import files from launcher engine and migrate in custom source one.
make your custom code in a plugin that you can build, package and add to your launcher engine
there should be a way to also copy some of the datasmith dll from the launcher version back into your compiled version to enable CAD import.