250mm x 250mm Bed Level Test

I wanted to test my bed level on my Wanhao D9 which is 300mm x 300mm so I created my own 250mm x 250mm test. I felt that would give me a decent view of how level my bed is and it did! It is 1mm thick which is thicker than needed for a bed level test but I also wanted to test bed adhesion too and by having it just a bit thicker, it also tests for lifting as well. One can adjust the size for any bed size by scaling only the X and Y dimensions while leaving the Z dimension at 1mm.