Prusa MK3 Simple Spool Holder Bearing

prusaprinters

<p>I wanted to improve the plastic input to my extruder, because just with the original spool holder from prusa the spool wobbles a little bit due to the friction between spool and holder.</p> <p>After a quick search found thousands of ideas, most of them using steel bearings of some kind.</p> <p>Since the Prusa holder is quite sturdy i want to keep it, just need to improve it. Some time later after searching 3d printed bearings i used this concept “<a href="https://www.thingiverse.com/thing:2543414”">https://www.thingiverse.com/thing:2543414”</a> by Qube3Bot to create the upgrade part.</p> <p>Few Steps</p> <p>1- Detach all bearing parts carefully<br/> 2- Slide them into the spool holder part (should be a tight fit)<br/> 3- Done :)</p> <p>Unnecessary steps</p> <p>4- Rub a wax candle on the bearing to remove clanky plastic sound<br/> 5- To improve grip between spool and bearing just wrap an elastic band around it (pic 1)<br/> 6- If the bearing move side to side you can secure it with a zip tie or wrap another elastic band (pic 2)</p> <p>Happy spool spinning :D</p>