About this 3D model

I update and fix this. This is the final, I will upload the result of the print soon. There are 3 parts. Slicer using CURA. Top part : no need support - Print Regular Middle part : need support. Wall thickness : 2 mm Infil : 100% Support : Touching Buildplate Support Overhang Angle : 80 degree Support Pattern : Zigzag Support Density : 15% Use Tower (Check) Build Plate Adhesion : none Back Part : no need support. Infill : 100% PLA.