I use Freecad to export to .STEP. Its free and relatively simple to use. You need to export the sketchup file as a STl, then import and convert the mesh to a shape with freecad. Once complete, you can export the shape as a .STEP file.
I use Freecad to export to .STEP. Its free and relatively simple to use. You need to export the sketchup file as a STl, then import and convert the mesh to a shape with freecad. Once complete, you can export the shape as a .STEP file.