behind photo light cover

in this file you can see that it is light cover behind photo 400 mm x 300 mm and it cutted to be fitted on a1 if you have a1 mini i m not sure it will fit in stl file it has 3 stiles

1. outside wall 2mm and high is 30mm 

2. outside wall 1mm and high is 30mm

3. outside wall 1mm and high is 18mm

i have printed in 0.6 nozzle with 0.18 layer high and all items can be assembled to make it one big frame put togather use glue and then put inside led light and push it trough one of the hole and then push cover it is almost pressfit works realy good and when hanging can hold max 900 grams maybe more  of photo it looks cools