I have NO idea what's going on here. The STL looks good in Blender and Cura, but the preview mode looks horrible, and it does print it this way.
I've looked at other blades, by a different person, and they don't have these defects as seen in the screenshot. It's not flush against the blue line.
I've changed printers, quality of print, etc.
The items are found here: https://www.thingiverse.com/thing:6194724
and here: https://www.thingiverse.com/thing:6252692
Any thoughts?
untitled-blade_1_.stl untitled-Blade.stl