am8 spool holder

this is the setup i put together for my am8 bowden extruder.i cant find the designer of the spool nut spindle,(once i find it ill give credit)great design has 8mm bore thru it.will fit spool centers upto 55mm diameter,and width upto 80mm.
i gave the bracket a 2 degree upward incline to keep the spool from walking off.i used a 7mm composite rod from a $2 arrow at walmart,ive wrapped a few layers of electrical tape around the 7mm arrow to act as a friction brake to slow dont the spool. ive includ