Ender 3 Spool Holder with ball bearings
thingiverse
Another Spool Holder. <iframe width="560" height="315" src="https://www.youtube.com/embed/6kxv3c0tOZQ" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> To guarantee that the filament unwinds evenly and smoothly, I have widened the center distance of the rolls compared to other holders. I also uploaded a video at 10x speed. For the ball bearings, I used bearings with: - outer diameter: 22 mm - inner diameter: 8 mm - height: 7 mm For example: https://www.amazon.com/dp/B00WXDAUQG/ Diameter to plug in the ball bearings: Ø 22.20 mm Diameter for the bolts: 8.0 mm It fits perfectly with my printer. If the bolts don't fit, just use sandpaper. The bolts should be firm and secure.
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