Consumable assembly

This invention is a way to supply filament to a 3D printer without using a traditional spool. It involves a coil of filament wound so that the filament is pulled from the inside of the coil through a special hole. A band around the outside of the coil keeps it tightly compressed, preventing the filament from tangling or kinking as it's pulled out. Some versions also include a stretchable polymer overwrap for added protection.

Why it matters: Since 2020, the demand for reliable, automated 3D printing has grown, making tangle-free filament feeding more critical for unattended operations. The increasing focus on sustainable manufacturing also enhances the appeal of spool-less designs to reduce plastic waste.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: ModerateSpool-less filament winding, custom band, overwrap

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