Filament 76mm Spindle Bobbin for Ender 3

thingiverse

<p>When I got my Ender 3 I was surprised at the way the reel of filament just hung on the spindle holder with no apparent thought to enabling the reel to turn easily. </p> <p>What I felt it needed was a spindle adapter (or bobbin) which would make the spindle sit at the middle of the reel. This would mean the filament tension would only have to cope with a radial load rather than in effect having to lift the reel as well to spool off more. So the reel can turn more easily.</p> <p>So I designed three. They differ on the diameter of the central hole of the filament reel.</p> <p>This one supports supports 76mm diameter hole reels. See my other items for the other two (56mm and 47mm respectively) In fact the bobbin exterior diameter is only 72mm giving some leeway for tolerences on 76mm reels.</p> <p>The bobbin slots through the Reel and then over the Ender 3 spindle. It is retained in position by the lip at the far end of the Ender 3 spindle.</p> <p>It really does seem to help prevent the damn thing from over tensioning the filament and besides, its looks better too.</p>