TheONE roller - flowing spool holder compatible with "the ONE system"

Hi guys,this is an essential accessory if you decide to mount the theONE system!super smoothworks in a very little spacestable and long-lasting. Here the link to download the system : https://makerworld.com/it/models/110915 You will love this spool holder. Small explanation of how to assemble it:first you will have to remove the supports. Below see what you will get!insert the first bearing into the bottom part.insert the roller over the bearing.place the pin and push it in (by lightly tapping it with an hammer)finish the job by fixing everything with the second bearing.here is the final result!if the printing tolerances make the insertion of the pin too large, you can block the pin and cylinder with a toothpick through the two holes