Light box for Lithophanes, easy print, designed for USB RGB LED strip

Could not find any quick and easy to print Lithophane boxes so I have attempted to design this to hold four 90x90x3mm Lithophanes and have easy mounting of the popular and easy to find usb remote controlled rgb light strips used for televisions approx. 900mm long.

I print my lithophanes vertically with 3mm border and base and plenty of brim to keep print stuck to bed. I use http://3dp.rocks/lithophane/ to create the lithophanes with settings as uploaded. I sometimes use a little curvature se