Filament spool holder

After looking at various filament holders I decided to make one that fitted onto the top of the frame on my Anet2. (This will also fit almost any other frame as well).
I have included a tapered spool insert to take spool centres up to 64mm diameter. I found it unnecessary to include bearings in these due to the low speed of rotation. Included also are plain spool centres of 54mm diameter which seems to be a common size. The filament spool is supported on a 100mm long piece of 8mm studding and secured with a knob which has a 8mm self locking nut pressed into it.
You will need:
1 piece of 8mm studding 100mm long
2 plain 8mm nuts
1 8mm Self locking nut
1 5mm tee nut and screw (to secure to frame).
I hope you find this a useful accessory. (Shame the pics are shown the wrong way up).