This is our Business logo, slapped on a coaster! Deep enough to drain, however I still decided to add some small degree slopes towards the center. I printed this in .24 so there is few lines and large steps. For a smoother transition print in lower layer height Such as .12-.16, this will create more lines. I have also added a flat, smooth-top file to avoid any lines on the face, should still drain well. It also has a different shape to it, so if you are having trouble printing the one with the slope print the smooth-face as its printer friendly. Resize as needed.
The author hasn't provided the model origin yet.