For multi-coloration 3D printing, a regular dual extruder 3D printer, one that includes a solitary mount for the twin nozzles, is ok. But don’t expect it for being as fast as only one extruder 3D printer, thinking of the extra body weight to the print head affects the print speed. https://blockchainnews93822.blogginaway.com/30271057/multicolored-3d-printer-secrets