Spool assembly for additive manufacturing system, and methods of manufacture and use thereof

This is a special holder for the filament spools used in 3D printers. Instead of having a central rod, the spool rests on rollers inside a housing, allowing it to spin freely as the printer pulls filament. The claims specifically describe a version where the spool is supported by two parallel rollers mounted inside the housing.

Why it matters: Filed before the widespread adoption of diverse and moisture-sensitive filaments. A sealed, hub-less design could now offer improved material preservation and universal compatibility for modern 3D printers.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: ModerateHousing, spool, bearing rollers.

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