♻️ REUSABLE FILAMENT SPOOL – Cardboard Conversion - CREALITY EDITION

A reusable, two-piece locking filament spool designed to convert damaged or dusty cardboard spools into durable plastic — or function as a standalone filament spool.

This model was originally created to solve real-world issues with Creality HyperPLA cardboard spools used in the Creality CFS, where bent edges, crushed hubs, or cardboard dust can cause feeding and rotation problems.

To handle real-world cardboard variations, optional 82 mm add-on hub rings are included, allowing you to fine-tune the fit when cardboard side panels are removed.
This version is uploaded as a Creality Print v7 .3mf file to allow you to color the spool like Creality would...Black and Green! Please read the included PDF for detailed instructions on how to colorized the spool to get accurate results and user options that are available.

📌 QUICK OVERVIEW

Purpose: Reusable plastic filament spool

Designed for: Creality HyperPLA cardboard spools

Diameter: 200 mm (matches original HyperPLA spools)

Hub Options:

● 80 mm standard hub

● 82 mm add-on rings (included) for oversized or inconsistent cardboard cores

Design: Two-piece twist-lock spool halves

Use Case: Cardboard conversion or standalone filament spool

RFID Ready: Integrated RFID tag location

Printing: No supports required

Assembly: Tool-free twist-lock

🧠 PROJECT BACKGROUND

Creality HyperPLA cardboard spools are lightweight and eco-friendly — but they don’t always survive shipping. Bent rims, crushed hubs, and cardboard dust can lead to feeding issues, especially in enclosed multi-material systems like the Creality CFS.

Cardboard hub diameters also vary more than expected once the side panels are removed.

This reusable spool was designed as a Creality-focused drop-in solution to:

● Restore damaged HyperPLA cardboard spools

● Keep cardboard dust out of the CFS

● Compensate for real-world hub size variation

● Maintain original 200 mm spool dimensions

● Avoid manually re-spooling filament

It can also be used as a standard reusable filament spool, even without cardboard cores.

📐 DESIGN DETAILS

● 200 mm outer diameter to match Creality HyperPLA spools

● Two-piece twist-lock design for fast, tool-free assembly

● Converts cardboard spools or functions as a standalone spool

● Standard 80 mm hub for typical cardboard cores

● Included 82 mm slid-on hub rings for oversized or inconsistent cardboard hubs

● Hub remains centered and secure even when cardboard side panels are removed

● Integrated RFID location for:

- Reusing Creality RFID tags

- Adding your own custom RFID or NFC tags

● Open spoke pattern reduces material usage while maintaining rigidity

● Optimized for smooth rotation in the Creality CFS and similar systems

● Four directional filament anchor holes (two per side) allow secure filament starts when loading filament onto the hub as a standalone spool

🔧 PRINTING NOTES

Printed examples shown were completed using PLA, but PETG or ABS may also be used depending on your environment and storage needs.

Recommended settings:

● 0.4 mm nozzle

● Standard layer heights (0.2 mm works well)

● Default wall and infill settings

Print orientation:

● Print both spool halves flat on the bed

● Print hub rings flat

Supports:

❌ Not required

3MF Files:

● Includes optimized 3MF file for Creality K2 Plus

● These files use the same orientations and settings shown in the photos

● Settings reflect my personal printers and filament...No Guarantees If You Use Them.

● Always verify layer height, speeds, temperatures, and cooling for your machine

Assembly tips:

● If your cardboard hub fits snugly, use the standard 80 mm hub

● If the hub feels loose after removing side panels, slide on the 82 mm add-on rings before final assembly

📦 INCLUDED FILES / FEATURES

● 82 mm hub add-on rings to compensate for cardboard core variations

● RFID-ready hub location for Creality tag reuse or custom RFID solutions

● Optimized 3MF files for Creality K2 Plus

● Designed specifically to compliment the Creality Brand and with Creality CFS compatibility in mind

● Ideal for users who want to eliminate cardboard dust in enclosed systems

● Suitable for long-term filament storage or active printing setups

Reusable Filament Spool - Cardboard Spool - Creality Edition

0.2mm layer, 2 walls, 15% infill