Improved Simple Hydroponic Culture Set

Newest Version is below :
https://www.thingiverse.com/thing:3624561

This is old version,
Simple Hydroponic Culture Tool using PET bottle.
Less consumption of PLA.
need one marble inside PET bottle.

Printer : Alunar M508
0.1mm Resolution
0.3mm Surface Thickness
Slicer Setting:
BaseCup : over 75% Density
MarbleSupport : 50% Density
Others : 25% Density