For multi-color 3D printing, a daily dual extruder 3D printer, one which contains a one mount for the dual nozzles, is good enough. But don’t be expecting it being as quickly as a single extruder 3D printer, looking at the extra pounds to the print head affects the print pace. https://connerxtldt.techionblog.com/29732276/multicolored-3d-printer-no-further-a-mystery