beveling 2D cutout shapes not working as expected I have a picture I am trying to 3D print a copy of.



First I took a picture, then I converted it to an svg and loaded it in tinkercad. Then after some failed fiddling I saved the file as an stl and loaded it in meshmixer. From there I cleaned it up and selected each part of the image and raised the edges up to give them some depth.

After a test print I felt it needed smoother edges, so I downloaded blender to try beveling it. After I figured out how to import and move it, I selected all of the faces on a single section (colors) and hit bevel. I'm not sure what happened but I can't get the edges to round out at all, it seems to just want to focus on a few points at intersections and move them about.

What am I doing wrong? I am VERY new to 3D modeling and learning as I go, so be warned that I don't know much of the terminology.
Practice on some geometry that isn't this scene first, to get the hang of how bevel works and how to select the right geometry quickly. Bevel doesn't magically know what you want to bevel, you probably want to select the edges to get the right kind of bevel.



This is what you'd get if you bevelled using faces, it's probably not what you want:



But this is the bevel with edges: