Index card box with dividers

Just a simple index card holder for A8 index cards with thin walls and reinforcement elements at the edges to make it stackable.  

• Inner dimensions: 
  • width 80 mm
  • depth 63 mm
  • length 150 mm
•  Wall thickness:
  • front: 0,8 mm
  • sides: 1 mm
  • bottom: 2 mm

The stl files were created by PrusaSlicer, because the FreeCAD ones had mistakes (I think I replaced all of the faulty ones).