I really liked Jacques Botha's Azul overlay, but I didn't want to glue clips to my overlay. I have a large format printer so I had plenty of room to make an overlay that fit over the entire board. The overlay is 242mm x 242mm so it should fit on any printer with a bed 250mm bed or larger.

After printing the overlays, I found that putting them in the box with the included insert caused box lift. So back to the drawing board and I came up with this insert.

This insert uses a ton of filament, but you can use lightning infill or gradual infill steps to cut down on the amount of infill required. The insert also measures 250x250mm so you will need a large format printer to handle this job in one print.

Insert Print Settings

Filament:

Overture Matte Blue PLA

Quality Layer Height: 0.2 mm

Line Width: 0.4 mm

Wall Line Count: 3 

Top Thickness: 1.2 mm

Bottom Thickness: 1.2 mm

 Infill Infill Density: 15%

 Infill Pattern: grid

Material Printing Temperature: 215°C

 Build Plate Temperature: 60°C

 Speed Print Speed: 80 mm/s

Fan Speed: 100%

Build Plate Adhesion Type: brim

For the overlays, the .stl is face down and will print with no supports. Print it with no top or bottom layers, three walls, and with grid infill at 25%.

PRINT SETTINGS

Filament: Inland Blue PLA

Quality Layer Height: 0.2 mm

Line Width: 0.4 mm

Wall Line Count: 3 

Top Thickness: 1.2 mm

Bottom Thickness: 1.2 mm 

Infill Density: 25% 

Infill Pattern: grid 

Material Printing Temperature: 215°C

Build Plate Temperature: 60°C 

Speed Print Speed: 80 mm/s 

Fan Speed: 100% 

Build Plate Adhesion Type: skirt