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） Installation video link for the

Installation video link for the diagonal bracing rods : https://youtu

Y-axis video installation:  https://www

After installation is complete

S&M Makers

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） Installation video link for theProduct 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