As the title suggests, I rounded over the edges of these parts. The goals were to simply eliminate the sharp edges and to enhance the appearance a bit. (subjective) I also strengthened the mounting holes on the LCD mount. Two of mine broke off really easily on the original design while removing it from the print bed. I have printed most of these parts and like the way they have turned out. Enjoy.
UPDATE: 31 Dec 2017 Added "strengthened" Y rail mounts. One of mine cracked...