Ender 3V2 Spool Spindle Adapter with Small Bearings

thingiverse

This is an add-on adapter for the Ender 3V2 and should also fit any of the Ender 3 series with the same filament holder. This adapter does not replace or modify the factory built holder. Instead, it is a simple set of two bearing holders which clip onto the spool holder spindle, one on each end and are held in place with friction. They are connected by a toothed rack and their separation can be adjusted to accomodate for any difference in width of the mounted filament spool. The bearings used are small inexpensive 3x8x4 693zz bearings, mounted in stacked pairs. They are chosen so that the effective diameter of the holder spindle can be kept within the mounting hole of common filament spools. Though small they are more than capable of carrying the small weight of the loaded filament. Printed with PLA 190°/50°, no support required. Tested to run smoothly without any complications.