Optimized Filament Spool Rewinder

Optimized Filament Spool Rewinder

After testing various existing filament spool rewinders, I found that while they generally work, they often snag, require an unnecessary number of printed parts, are complicated to assemble, or are slow to operate.

Therefore, I developed my own, completely revised Filament Spool Rewinder. The goal was a design specifically optimized for 3D printing, easy to build, and at the same time faster and more versatile to use.

Features

• Design optimized for 3D printing
• Reduced number of printed parts
• Easier and faster assembly
• Revised gear ratio for faster rewinding
• Wider spool holder for a wide range of filament spools
• Supports spools up to 120 mm width
• The maximum spool width can be easily adjusted to your own requirements if needed

Why this version?

The focus was on a design that is as simple and reliable as possible:

• Fewer parts mean shorter printing time and lower material costs.
• Assembly is significantly simpler than with many comparable models.
• Thanks to the optimized gear ratio, filament can be rewound much faster.
• The widened spool holder also allows for rewinding larger or wider filament spools.

I appreciate your ratings, assemblies (preferably with pictures), and suggestions for improvement!

Happy printing and rewinding!