customizable Filament Spool Drawer

I love the idea of reusing old filament spools as the base for small boxes.

Unfortunately, however, filament spools vary considerably in their sizes. As a consequence, a given STL file will almost certainly not fit into the spools *you* have.

For that reason, the drawers shown here have been modeled by means of [OpenJSCAD](https://openjscad.xyz/dokuwiki/doku.php), which give you the possibility to adjust them just by changing a few numbers and [rerun the script in your browser](https://openjscad.xyz/)

### Script Parameters ###

The most important script parameters are

* `innerDrawerDiameter`,
* `outerDrawerDiameter` and
* `DrawerHeight`

A long bolt serves as the drawer's axis. It is pushed through the upper part of the spool frame and fixed with a nut just underneath the frame - the drawer already leaves some space for it.

There is no need for the bolt to reach until the bottom of the spool frame - if you don't stack several drawers above each other but use a sing