Prusa i3 (Hephestos) enclosure

This is an experiment to build an enclosure for my BQ Prusa i3 Hephestos.
20mm square aluminium (1mm thickness) is used to build the structure so the filament spooler can be placed over.
The joints are sliced to as placed in the STL's with custom supports to have the same strength on every plug. The base joint have a M5 nut catch to be screwed to the base (from bottom)