I made this model because I have a number of smaller filament samples that are just loose coils and I wanted to put them on spools, but not take up a full-size spool for each color.

This spool is smaller than a standard 1kg size spool, so I can take up less storage space than a full size cardboard spool.

There is a center over-lapping lip that can easily be hot-glued or super-glued to assemble it, 


Stubby Spool (3mm rim w_center lip)

Stubby Spool (3mm rim w_center lip) Bottom.stl

These models were inspired by user BRiTL_UK and his models at https://www.crealitycloud.com/model-detail/65bfae7cf512c0a97f354b57

This set was designed to enable me to move my filament spool off the top of my Ender-3 V3 KE printer to reduce the wobbling and shaking caused by
the weight of the spool and the shaking of the bed.

This is entirely a "snap-together" design. I did use a rubber mallet to finish tapping the wheel onto the bearing so it was flush, but the rest of it is just snap together with finger pressure.

The only extra part needed is a bearing (10x26x8 sealed.) to place in the center of the pulley wheel.
https://www.amazon.com/dp/B08KT6MFRW?psc=1&ref=ppx_yo2ov_dt_b_product_details

Filament Feeder System for Ender-3 V3 KE

Filament Pulley Mount.stl

Pulley Wheel Cover.stl

I made this model because I have a number of smaller filament samples that are just loose coils and I wanted to put them on spools, but not take up a full-size spool for each color.
This spool is about half the width (or a little less) than a standard 1kg size spool, so I can have two different colors in the same amount of space as one would normally take up.
There is a center over-lapping lip that can easily be hot-glued or super-glued to assemble it.
I added a third model that has an additional center ring for extra strength and makes the filament wind not so small. I just used hot glue on some of the points where it touches the top wheel.

Skinny Spool v3 (3mm rim w_center lip) Bottom Double Center

Skinny Spool v3 (3mm rim w_center lip) Bottom Double Center.stl

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Stubby Spool (3mm rim w_center lip)

Filament Feeder System for Ender-3 V3 KE

Skinny Spool v3 (3mm rim w_center lip) Bottom Double Center