FreeNo-Hassle Filament Clip - 12mm - Printrbot Simple Metal
Thingiverse
6 model
Free
FreeElegoo rotating spool holder NO METAL PARTS Needed Neptune 3 plus may fit others.
Thingiverse
FreePrintrbot Simple Metal Flexible Filament Extruder Arm (no supports needed)
Thingiverse
FreePrintrbot Simple Metal Spool Holder V3 (No Assembly Required!)
Thingiverse
FreeE3D V6 All-Metal Hotend Mod (direct extruder) for Wanhao i3 or Maker Select 3D Printer (No add'l hardware needed)
Thingiverse
FreePrintrbot Metal Plus Top Spool Mount Revision 2 (Minimalist Design, No Tools or Parts Required)
Thingiverse