Filament Reel Holder

thingiverse

I designed my first 3D model, a Spool holder, because I wanted smoother filament feeding on my Ender 5 Pro. The standard holder's jerky unwind was affecting my prints. The rails are mirrored and optimized for 22mm OD x 8mm ID x 7mm W bearings (part No 608Z). You can print four rollers of the same size if you don't have any, just add a little clearance to the 8mm ID. Print the rails four times and they'll snap into the 8mm bearing bore easily. The brace keeps the rails at 62mm centers in this case, but you can adjust that width to suit your spool's needs. It also holds the two parts of the rails together and adds stability.