Delta Printer Filament holder Mk3 99.5% poly, Adaptable Spigot

Looking back over the development of this device I feel I may have become a little guilty of taking a simple concept and making it complicated, but with good intentions.

This design has been 100% built and tested, and whilst I call this the Mk3 design, I've actually made and rejected about 6 other design iterations that haven't made it to public viewing.

Each released iteration of this design I feel has some merit and maybe drawbacks ,the first benefits from its pure simplicity and is v