Modular 4x6 Photo Case inserts

Set of modular bins to go in a standard 4x6 photo case.

3x3 based grid of rectangular boxes, in the STL files the first number is number of units tall, followed by number of columns wide, with a 12 following indicating a half width.

for example:

2x1_12.stl is 2 rows tall and 1.5 columns wide

bins are tall enough so that items don't get mixed up even when put on side