It is a simple parametric round container.

1. Open the ParametricBox.scad file with openScad ( http://www.openscad.org/ )
2. Modify the variables in Parameters.scad to suit your needs and save it.
3. Open lid.scad with OpenSCAD.
4. Press [F5] and then [F6] to generate the lid.
5. Export it as an STL file.
6. Open body.scad with OpenSCAD.
7. Press [F5] and then [F6] to generate the body.
8. Export it as an STL file.

An example of an 80 mm x 80mm container is given. You might need to drill a small hole to ease its opening or closing. It can be printed without support.

This object main web page is: http://www.ctheroux.com/parametric-round-container/.