where did you get this cut?
did you compensate for the width of the cut when you sent them the dimensions?
Well, I suppose they're responsible for that, but it seems like they didn't compensate.
Because if your measurements were correct, then it should fit together perfectly square
Nope, I should get that into the consideration My fault, doesn't matter, it's cheap anyway. That was a fast trial run. I'll try to experiment with this one like sanding, painting etc to see what looks good and I'll order another set with correct measurements and make it final. Also I might break it apart to test if the glue that was proposed above doesn't leave the smudges like the super glue.
Call them and ask how much the laser melts off as it cuts the acrylic..
different machines and configurations produce different widths of cut.
Alternatively, since your cover is pretty big, it'd be easy and fairly rigid to do an Interlocking cut like in my keycap project case.
Picture of the case in my keycap project link below
but, for interlock, you have to know fairly precisely the laser cut width to compensate. if you want to do it without glue.