This is my improved Design of my old and basic Spoolholder Design.Now it is featuring: -a more sturdy design  - Ballbearings for the Spools (recommended but not absolutely needed to be usable) -Fanholder for a 80mm Fan for the Feeder Stepper Motor/s (The Fanholder is supposed to be glued in or welded -  Material feeding in the natural curvature of the filament - Holders for the Motor in case you want to disassemble the feeder - Spool Covers so that the filament cannot unspool that far by itself and get off the         spoolRecommended:3.2mm Shell and 3mm Top/Bottom thickness with 24% infill for the Spoolholder.Rest with 1.2mm Shell and 1.2mm Top/bottom thickness and 24% infillPrintlist for the complete Set1xSpoolholder1xFeederholder2xSpacer big4xSpacer small1x Feeder fix2x Spool fix1x Fanholder2x Spool CoversAnd as always.... Constructed for PLA print.... should be print and usable with ABS too though.Update 1: Added Spool Covers