KraBox - stackable boxes

This is a set of stackable trays and small inner bins that can be customized to any size.

You will need basic knowledge of OpenSCAD to get the size you want.

The tray size is 150x150x37mm
Inner space can be empty, separarated to smaller sections on organized with smaller bins that

## Tray with separators
To make a tray with fixed separators use combination of a `tray` and one or more `tray_separator`s eg:
```
tray();
tray_separators([1/3, 2/3], [1/3]);
translate([0, 1/3 * tray_Size[0], 0])
tray_separators([], [1/3], [1/3 * tray_Size[0], tray_Size[1]]);
```

## Inner Bins
Print an empty tray first and then use `bin` with optinal `split`:
```
bin([bin_M, bin_S]);
bin_split([bin_M, bin_S], [3, 1]);
```
### Predefined bin sizes (~):
- XS - 25 mm
- S - 50 mm
- SM - 75 mm
- M - 100 mm
- L - 150 mm