When 3D printers launched, the one possibility was photosensitive resin. But as 3D printing engineering has progressed, multiple supplies and alternatives have arrive into the picture. Answer: Twin extrusion requires a 3D printer with two extruders, each loaded with its own filament, permitting for various resources or colours to be https://johnnykbmbo.blogoxo.com/29805299/multicolored-3d-printer-secrets