Create custom containers/dividers in any combination to fit any drawer/box/outer container in a combination that suits you.

What it does is break up the outer container into X & Y segments and then allows you to create dividers/containers based on the Segment Sizes to fill the outer container

Here we have an outer container broken up into a 3 wide (X) by 4 High (Y) Grid

+----+----+----+
+----+----+----+
+----+----+----+
+----+----+----+
+----+----+----+

If we printed a 1 x 1 Divider,12 of them would fit into the outer Container.
Printing a 3 x 2 (full Width and half depth) would fill the space using 2 dividers

Use of the parameters is as follows

Outer Container
Container_X = Internal Width of the outer container in mm
Container_Y = Internal Depth of the outer container in mm
divisor_X = The number of segments we divide the Width by
divisor_Y = The number of segments we divide the Depth by
Tolerance = The amount of play we give each container. A 1mm Tolerance will allow for 0.5mm either side, and top and bottom of each divider (make sure you printer is tuned in nicely otherwise you will have poor fitting dividers)

Inner Divider
Wall = Thickness of the base and wall of the dividers. Keep this to a function of you nozzle size
corner_radius = If this is greater than 0 the divider will have rounded corners
Num_X = The width of the container in number of X segments
Num_Y = The depth of the container in number of y segments
divider_height = The height of the divider (including base thickness)

If you just want a divider/container to fill a space, use https://www.thingiverse.com/thing:6092469
Or just set the container size, specify 1x1 divisors and print a 1x1 inner divider

Obviously a poorly tuned printer will produce poorly fitting dividers.

Doesn't Matter

No