Large filament spool coupler

thingiverse

We procured several large spool filaments (3kg) for our 3D printers in the shop. The spools did not fit on the spool holder that came with the Ultimaker. We also have a 3/8'' steel rod where we place our filaments, but the spool was too heavy to be pulled from using it. Therefore, I designed this spool coupler to reduce resistance. Version two of the design incorporates a threaded axle. Version three attaches directly to the spool, with no need for an axle. The holder is designed to fit on a LulzBot TAZ6 frame or other models with similar extruded aluminum structures. This design works with 3/8" rods and 3/8'' (0.375) ID, 7/8'' (0.875) OD bearings. To assemble, apply some pressure evenly to press in the bearings. If you need a slight modification of the model, feel free to message me!