Summary It's ALIVE! This filament holder its made mostly with moving parts. I enjoy staring at the movement of the planetary gears, just like magic is turning all those little gears; it looks so cool. Needs 4 bearings 688 and two pencils. Change the base so it connects to each other with a pencil You may have to modify the plug Set 16 2015 Made a square shaft to replace the poor pencil New plug design 54mm diameter If you need a custom plug leave a comment with measurements Planetary gear design is a customized version of http://www.thingiverse.com/thing:138222 https://youtu.be/E0DarE8rtcE