Top / Science These are the most efficient ways to 3D print multi-colored objects 1 source1 article First seen 17 hours ago Updated 17 hours ago United States Truth score 34 Save Share Compare coverage Image from Howtogeek Summary Want to waste less filament? Do this instead.Description from Howtogeek. Who is covering this All 1 Not rated 1 HHowtogeek Not rated US 17 hours ago These are the most efficient ways to 3D print multi-colored objects Want to waste less filament? Do this instead.