For multi-shade 3D printing, a daily twin extruder 3D printer, one which contains a single mount for the twin nozzles, is good enough. But don’t expect it to become as speedy as only one extruder 3D printer, looking at the additional bodyweight to the print head impacts the print pace. https://stanleyb504stw4.angelinsblog.com/29218608/multicolored-3d-printer-no-further-a-mystery