For multi-shade 3D printing, an everyday twin extruder 3D printer, one which incorporates a one mount for the dual nozzles, is ok. But don’t count on it to get as rapidly as one extruder 3D printer, thinking of the additional body weight over the print head affects the print velocity. https://zionwcfik.blogitright.com/29782524/what-does-multicolored-3d-printer-mean