The Dual Z Axis structure makes your Ender 3 series printer more stable and improves printing accuracy. Low upgrade cost, Cost-effective(high-cost performance), minimal cost upgrade, and maximum optimization. The mature solution, compatible with Ender 3, Ender 3 Pro, and Ender 3 V2, provides technical guidance. Using the original T8 leads to a 2MM screw, the length of the lead screw: is 365mm/ 14.4 inches.