I designed this rack to hold 33 bottles/pots. Alternating 7 to 6, etc. I like this style for visibility.
Fits 28mm (Army Painter/ Vallejo) bottles or 32.5 (Citadel) pots depending on which shelves you print.
I didn't have to do much post-processing, the racks slide into the frames nicely. May need a bit of sanding there. I didn't use any glue on my set and it seems plenty sturdy.