Spool holder to reuse the original Anet A8 8mm rod. The holder slides on the body frame, no need to screw it on the body frame. The stem is connected to the base by M3 screws that was extra from the original assembly. Quick and easy spool change. The height of the stem is keeping the filament roll close to the body frame with a low CG, so less shaking during print. Higher the filament roll, more vibration the body frame will expereince. The extension thread extends the original rod for better support.
Print a filament hub to use for the rod. I used this one. http://www.thingiverse.com/thing:1479733
Please feel free to share your feedback for improvement.