In the last few days I’ve had a client asking for either a SAT or STEP file of one of my designs to import into their CAD package.
In case anyone else ever has this issue I found a relatively easy workflow for STEP files by using FREECAD.
Export the SKP as an STL
Import into FREECAD.
Open Part Workbench
In “Part” drop down menu “Create Shape From Mesh”.
Then “Convert to Solid” and “Create a copy - Refine”
Export selection as a STEP File.
Worked perfectly in their software as a dumb solid (it cant be edited) but they can easily measure or even reverse engineer.
It works best on individual components. If you have a Sketchup model with various components or groups it seems to get bogged down with too much info so it might be best to split everything into individual files.
Anyway, I hope this helps somebody in the future. 