Tenlog TL-D6 Best Dual Extruder 3D Printer It reaches the maximum limit of the frame printer. Super Large Format building volume is 600*mm*600mm*600mm. It has 2 Z-axis metal levers to reduce a lot of sway and make the printing platform more stable during printing. Compared with the all-metal double nozzle, it brings a super low price. It is a cheap double-nozzle large printer but it runs stably and the printing object has high precision.