If you’re hungry for more details, the full build log and discussion can be found on the RepRap forums. He also has a guide on making your own ABS color masterbatch to make your own filament colors!
Interested in experimenting with your own multi-color filament? [Turbo_SunShine] says to just print your own, and experiment away! Now, if you’re thinking that 3D printing some filament sounds ...
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