Spool Holder with Bearings

prusaprinters

<p>My custom spool holder. It fits for all common spools. Due to the standard bearing (like for a skateboard), the filament can unwind with low friction.</p> <p>Instructions:<br/> Printed parts and the following are needed:</p> <ul> <li>1x M8 screw, 10 cm length</li> <li>1x M8 nut (nylon)</li> <li>2x M4 screws for mounting (diameter 4 mm)</li> <li>2x standard bearings (outer diameter 22 mm, inner 8 mm, 7 mm thick)</li> </ul> <p>Assembly:</p> <ol> <li>Insert the M8 screw in the holder. Maybe you need to slightly hammer on the screw head.</li> <li>Place one bearing in the tube and then the long spacer. Insert the second bearing. Make sure the spacer aligns with the hole in the bearing.</li> <li>Mount the base. Put the tube on the long screw. Add the outer spacer. Screw the nut on it. Make sure it is not too tight.</li> <li>Add a spool and secure it the the printed nut After a few time it will screw/unscrew with less friction.</li> </ol> <h3>Print instructions</h3><p>I printed it with PLA, 0.1 mm layer height and 30% infill. Supports only for the screw insert in the base and one side of the tube.</p>