Home / 3D Printers / Big-40 / Automatic Calibration Expansion (Duex for Big40) Automatic Calibration Expansion (Duex for Big40)890.00 $ Duex for Big40 Out of stock SKU: BIG40-ELC-DUEX Categories: 3D Printers, Addons, Big-40 Related products Modix Big-60 – Voltage (110V) 4,900.00 $ Add to cart Griffin Spare hot-end 160.00 $ Add to cart Volcano Nozzle-X pack for abrasive filament 150.00 $ Add to cart Casters 120.00 $ Add to cart