Totally green here. Forgive and be patient…
I downloaded an stl file for 3D printing. The problem is that it was a 1:1 scale railway freight wagon, which is fine, but when I scaled it down to 1:148, the wall thickness also went that way.
Needless to say, there’s nothing there to print.
I know to use Sculpt > Inflate, but after that, I have no idea what to do. All the tutorials are for balloons and animation, which is not very helpful for a single “frame” which needs all its surfaces thickened to about a millimetre.
Has someone used this tool for a similar problem?