For multi-coloration 3D printing, a regular dual extruder 3D printer, one which contains a single mount for the dual nozzles, is adequate. But don’t hope it to be as quick as just one extruder 3D printer, thinking of the extra excess weight within the print head affects the print pace. https://cristianciffb.ka-blogs.com/82979162/everything-about-multicolored-3d-printer