Universal Filament Spool Holder - Idler Pulley

thingiverse

Here is a universal fit filament spool holder I designed to sit atop my dresser next to my Tronxy X1 printer. I previously used a spool holder similar in design that utilized bearings pressed into two 3D printed pieces, but after just a few completed prints the two halves parted ways and the filament spool toppled over. This design employs four M3x20mm bolts / nuts to secure four 3mm idler pulleys in place, and the lip of each idler pulley prevents the spool from sliding off or tipping over. I've now run numerous prints with this design, and the spool spins very smoothly without issue. Links to the specific pulleys used can be found below. If you have any questions or comments, please leave them below! Thanks! Idler Pulleys: (I purchased these from Amazon) [Amazon Link](https://www.amazon.com/gp/product/B01H3FNZ4M/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1) or (choose the "16T W6 B3 Without T" option) [AliExpress Link](https://www.aliexpress.com/item/10pcs-GT2-Idler-Timing-Pulley-16-20-Tooth-Wheel-Bore-3-5mm-Aluminium-Gear-Teeth-Width/32822906447.html?spm=2114.search0104.3.291.5d0651a1wIzNM5&ws_ab_test=searchweb0_0,searchweb201602_2_10065_10068_10130_10547_10546_10059_5015213_10548_5015315_10545_10696_100031_10084_10083_10103_451_10618_452_10307_5015913_5016015,searchweb201603_2,ppcSwitch_4&algo_expid=2a357316-b577-4aeb-8c37-73623e9a5056-42&algo_pvid=2a357316-b577-4aeb-8c37-73623e9a5056&transAbTest=ae803_2&priceBeautifyAB=0)