New updated files uploaded with slightly modified stls.
Also, added an ultra compact and light weight box with smaller pans to be filled from water colour tubes.
Needed a light weight field box for an coming backpacking tour where every gram counts. I've searched for a small box for more than the 6x2 half pans W&N offers for years. Chose between 2x7, 3x7, 4x3, 4x4 or 4x5.
Parts printed in PLA and I post processed the lid and water cans with a thin layer of epoxy resin to smooth the surface.
Maybe printing in ABS and give parts an acetone treatment will give the same result.
This is a work in progress, still fine tuning the sizes. 4x4 works fine, 4x5 is made slightly wider for the pans right now.