For multi-shade 3D printing, a daily dual extruder 3D printer, one which encompasses a one mount for the twin nozzles, is sufficient. But don’t expect it to be as rapid as just one extruder 3D printer, looking at the additional excess weight within the print head influences the print speed. https://christophern257nlh6.iyublog.com/29280377/not-known-facts-about-multicolored-3d-printer