Ultimaker 2 and 2+ Extended Length and Weight Filament Spool with Bearings

Description

I bought a 2.5kg spool that wouldn't fit on the default spool holder. I wanted something with bearings, but also strong enough to hold the extra weight, and width of the 100mm wide spool, but also hole all the others. So I downloaded the original spool from the GitHub for the Ultimaker 2, extended the length of it, brought down the legs that rest against the case for more load bearing capacity, and incorporated four 608 bearings that I had lying around. There is a custom shaft that snaps lightly into the corresponding grooves and includes a spacer to make sure the bearing is centered in the groove. This is my first version, and will probably update to a V2 to address the larger spool having some issues with rubbing on the filament feeder at the back of the printer, and incorporate some filament guide as this large of a spool causes the filament to spool out around it because the filament feed is narrower than the 2.5kg spool.

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