For multi-color 3D printing, a regular dual extruder 3D printer, one which features a solitary mount for the dual nozzles, is sufficient. But don’t expect it to get as rapidly as one extruder 3D printer, considering the additional bodyweight around the print head has an effect on the print pace. https://howtomakegrapewine31726.thezenweb.com/multicolored-3d-printer-fundamentals-explained-67457601