I often have this problem: the vertical lines between the letters are a rib structure inside the object. The surface is made up of 2 layers - 1 is .06" (16 gauge steel), the other is 1/8" material.
Why are my ribs showing through the surface and is there anything I can do about it? I have run shrinktrimmedsrf but saw very little improvement.
Thanks in advance for any advice you’ve got.