portsI extruded 3 circles in the back to use as alignment. I went through the plastic from the screen and them glue the print from the inside. I also have to use extra super glu for the corners, just in case.

Finally I rotate the design so the top of the print (outer face) have the marks from the 3D printer bed and make it looks more like a skin. also helps so the print is flat and do not require supports