You can export a box of any size. All boxes are stackable.
The outer size of a box in x/y is always a multiple of the size of the base unit (1x1x1). For the height you need the following formula (due to the stacking-mechanism):
total_height = <h>*<u_height> - (<h> - 1) * <u_connector_height>
with <h> as the height multiplier.
The boxes are located in stl files/box/height <height> with <height> as the
height multiplier of the box.
The files are named box_<size_a>x<size_b>x<height>.stl.
The orientation of the exported box is as followed:
The meshes are located in stl files/mesh/<type> with type as one of the
following:
chamfer 1: The mesh has a chamfer on one side.chamfer 2: The mesh has a chamfer on two sides.chamfer 4: The mesh has a chamfer on four sides.normal: The mesh has no chamfer.
The files are named mesh_<size_a>x<size_b>_chamfer_<sides> with <sides> as
the following:
l: The mesh has a chamfer on the left side (looking from the top down).t: The mesh has a chamfer on the top side (looking from the top down).r: The mesh has a chamfer on the right side (looking from the top down).b: The mesh has a chamfer on the bottom side (looking from the top down).
l, t, r and b can be combined to l+t, l+r, etc.
The following two images show every parameter that can be changed in
dimensions.scad.
The design was inspired by the assortment boxes from Alexandre Chappel.
The renders were created with the Free STL viewer tool from Dualbox.