For multi-colour 3D printing, an everyday dual extruder 3D printer, one that features a single mount for the twin nozzles, is adequate. But don’t count on it to become as quickly as only one extruder 3D printer, considering the extra body weight within the print head impacts the print velocity. https://donovanhdtjb.eedblog.com/29743248/multicolored-3d-printer-an-overview