FLSUN T1 Pro Spool Holder Upgrade

I didn't like my spools bouncing around on the 5.5mm metal bar that comes with FLSUN T1 Pro, while effective it is far from elegant. I created a simple spool holder enhancement to eliminate the side-to-side movement and improve reel function. 

I went with F686ZZ bearings as they are widely available and used in many 3D printers anyway. https://a.co/d/5WPd5DL.

(Bearings in photo are for illustrative purposes only, they are the wrong size at 5mm x 13mm x 4mm. Will update photo with correct bearing installed once they arrive.)

Spool holder enhancement also works well without the bearings. 

I will be making an auto-rewind version in the near future to prevent tangling.