Hi, It is possible in solid works and inside support structure what will not be touching surface?

I got the surface model ( created by connection two profiles by surface ), now I need add inside support but i should not touching surface. because it make export for 3d print really bad

It is possible something as a loft(to the surface but with some margin for example(1mm) )? Or how it is possible to make some like this in a fast way? Thanks.