Parametric Filament Spool Hub with 608ZZ bearing

thingiverse

This is a precision-crafted filament spool center with an 608ZZ bearing that effortlessly slides into an 8mm aluminum tube or a smooth steel rod, as it requires no nut. Once accurately dimensioned, it snaps seamlessly into place at the hub's center. The 608ZZ bearing ensures a completely frictionless operation. This design is my original creation, skillfully adapted from Thing #545954 by mateddy (James Lee), rebuilt from Thing #27139 by QuantumConcepts (Josh McCullough), and inspired by the exceptional design of labidus (Sylvain Rochette) found in Thing #596838. I merged the best elements from each concept. OpenSCAD source is provided, enabling further customization. An update made on December 23rd, 2014 enhanced the "petals" and streamlined the code for improved functionality. Instructions: Printed using PLA with 35% infill, a 0.2mm layer height, and 0.6mm walls and top/bottom layers. Measure the hole diameter of your filament spool as well as the wall depth. Input these dimensions into Customizer, which will produce a correctly dimensioned component that should smoothly slide into place at your spool's center. To use, acquire one 608ZZ bearing, pressing the hub over the bearing on a flat surface preferably immediately after printing and while the PLA is still warm and hasn't contracted. This produces a snug yet flawless fit. Keep in mind that each filament spool requires a pair of these precision components.