When I saw this design, I knew it was for me! Today I printed the first perfectly. I was paranoid about the corners lifting up from the bed after a 5+ hour print, so I stuck a mouse-ear brim on the four outside corners. These held and there was no warping at all. Could use it immediately as we were doing maintenance on our wood stove, so there was a place for all the different nuts and bolts. I used a low tech no-AMS way to make mine two-colour: I added a pause at layer 32, changed to matt green filament, then paused again at layer 37, and changed back to silver. Gives nice green fields, and a cool stripe around the outside. @K2_Kevin I have projects that don't need a high "fence" around them. Could you adapt your design to have a low, solid edge at the same level as the current front lip?