![](https://3ddoodle.com/wp-content/uploads/2023/07/IMG_5865-606x1024.jpg)
A Rotating Spool Hanger
The Spool Rotator twists filament as it is pulled into the extruder. When used with coextruded filaments that have more than one color the results are amazing!
![](https://3ddoodle.com/wp-content/uploads/2023/07/IMG_5889-1024x980.jpg)
The energy to rotate the spool comes from the filament unrolling. The mechanism is designed to require very little energy and there is a built-in torque limiter to prevent any possible damage to the extruder.
More information:
- How to download the 3D models
- Assembly
- Troubleshooting
- Changing Spools
- Customization
- Techniques
- Gallery
- Fun Stuff to print with the Spool Rotator
- Comments on various coextruded PLA filaments I have tried
10 Facts about the Spool Rotator
- Every single part prints without supports
- Uses magnets instead of spur gears and a #64 rubber band instead of a chain or more gears
- Requires less force to operate than pulling a cardboard spool on a plastic holder
- Has adaptors for spools with a wide variety of hub hole sizes
- Has different sized pulleys to control the speed of rotation
- Has a built-in torque limiter to prevent any possible damage to your printer
- Is free to download and use – it is in the public domain
- Requires multicolor coextruded filament to see the interesting effects due to rotation
- Requires 47 of the 6x2mm neodymium magnets, 4mm, and 8mm hardware and a pair of 8mm threaded rods (details on the download page).
- Requires skateboard bearings for ultra-low friction operation