For multi-color 3D printing, a regular dual extruder 3D printer, one which encompasses a one mount for the twin nozzles, is good enough. But don’t count on it to become as fast as one extruder 3D printer, contemplating the extra body weight around the print head affects the print speed. https://daltonkwjru.blogsmine.com/30142371/little-known-facts-about-multicolored-3d-printer