You would need some mixing chamber. That holds liquid plastic and churns it to achieve the results.
Not to mention having all the filament the same plastic composition.
Injection molds sometimes get stuck plastic in the hearing unit, but it doesn’t mix well and is streaky. Without some staging in a chamber it likely wouldn’t work.
Even with clear filament and dyes, it would taking mixing to incorporate the dyes.



I moved away years ago, the hardest thing is changing your email on every website. It takes awhile.