Dry Filament Spool Ring
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A filament spool ring with desiccant holder for cardboard spools.
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Model information
- Source
- Printables
- Category
- Accessories
- License
- Creative Commons — Attribution — Noncommercial — Share Alike

Summary
A spool ring that incorporates a desiccant holder directly with it. It is designed to attach one on each side of the spool. A funnel is also provided to assist in filling the desiccant holder.
Features
Spool ring designed to enhance smooth rolling
Center through-bore compatible with the Polymaker "shaft" for dry box use.
Achieves humidity levels as low as 10% when used in an airtight container
Confirmed fit for Polymaker and Overture cardboard spools.
Included funnel fits perfect and allows full control of filling.
It can be orientated so that the AMS and other important spool info is available!
Example Print Settings
Material: Polymaker PLA Pro
Nozzle: 0.6mm @ 225°C
Bed: PEI @ 62°C
Layer Height: 0.2mm
Max Volumetric Speed/Flow: 30mm³/s
Infill: Default (minimal infill required)
Brim: 5mm outward
Supports: Tree/Organic for the funnel
Note: These settings are calibrated for my specific machine and the current batch of PLA in use.
***If you test this spool ring with other brands, I'd love to hear whether it works well. Confirming compatibility across more spool manufacturers is something I would like to do, but buying one of every brand isn't practical. Your feedback would be greatly appreciated!***
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JD3D is not responsible for any damage or harm caused by improper production, assembly and use