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Z-axis upgrade guide rail kit (林邓 guide rail): includes two sets of 林邓 linear guide rails
X-axis upgrade guide rail kit : Including a set of  
Ender 3 and Ender-3 NEO require different methods to secure the power supply
Y-axis Installation Video : https://www
replacing the original dual-shaft bearing transmission system
ELEGOO Neptune 4 Upgrade Kit （ Not Pro, not Plus, not Max） Size:Z-axis dual synchronous belt kit（The Z-axis linear rails must be upgraded first） Z-axis upgrade guide rail kitProduct features: 1. The installation base is made of aerospace grade aluminum alloy with CNC processing, good flatness and verticality, high dimensional accuracy, lightweight product, and reduced motor load. 2. The Y axis adopts a unique structure of double guide rails and double sliders, which makes the Y axis more evenly and stably loaded. The linear guide rails and sliders are made of high carbon chromium bearing steel and use electroplating rust
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