For multi-coloration 3D printing, a regular twin extruder 3D printer, one that incorporates a solitary mount for the twin nozzles, is adequate. But don’t be expecting it for being as quick as an individual extruder 3D printer, thinking about the extra bodyweight around the print head influences the print velocity. https://martinxoexl.uzblog.net/indicators-on-multicolored-3d-printer-you-should-know-43824507