Hello,
Dual-Color Flament is unfortunately not available in all colors or one might only need a small quantity of it.
And buying a whole spool when one just wants to give it a try is also not economical. Therefore, I have created a template here with which you can make your own Dual-Color Filament.
One print yields 10m of Filament. The cross-section is not round but hexagonal. This improves adhesion to the print bed and prevents the filament from twisting in the extruder.
Enjoy experimenting!
The author marked this model as their own original creation.