Anet A6 Large Top Spool Holder

This is a large spool holder for the Anet A6.
I made this after I bought a 3kg filament spool and realised I had no way of mounting it to my printer. Rather than make a free standing spool holder and filament guide, I decided to make a top mounted spool holder which provides a short, unobstructed path to the extruder and saves space. The Anet A6 frame is also fairly rigid and can easily take the weight of the spool without flexing; the centre of the spool is aligned vertically with the acryl