1KG spool holder for 100mm printers

A spool holder capable of holding 1kg filament spools, divided into two pieces so that it can be printed with small printers (100x100x100mm bed required). Top and bottom parts must be fastened using two M2x20mm self-tapping screws. Pictures show the result produced with an EasyThreed K9 printer. Includes 4 screw holes to fix the spool holder to surface and avoid tripping when filament is pulled (up to ØM4 screws with 12mm washers). Includes an optional filament drawer that can be fitted on top, to route the filament in a specific direction, but that part is not guaranteed to work perfectly...