Compatibility - Bambu Lab X1 Series - Bambu Lab P1 Series. Excellent print stability. The heat bridge and heating block are crimped to prevent leaks and drops. Fast heat conduction improves printing efficiency. The improved heating block is made from nickel-plated chrome-zirconium-copper material. It withstands high temperatures of up to 500 °C and achieves rapid heat conduction, enhancing printing efficiency. The larger the size, the higher the printing speed. 0.25 mm, 0.4 mm, and 0.8 mm nozzles are also available. Higher printing speed. A larger diameter extrudes more material per second, resulting in a higher printing speed.