I have also lowered the z print height by 4mm as I don't think it needs to be so think, but just change its z height position in your slicer if you want the full thickness. Also included the letters if you have a MMU you can do it in two colors or perhaps or even try printing it upside down with the letters printing first in a different colour. (I think the letters are the same dimension as the cutouts so probably wont work if your print them separate…)
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