Modular - Hydroponic Tower

❤ Introduction

Hi, after several years since my previous hydroponic tower and after refining the concept, I created a new model based on my earlier project and new experiences:

Original Hydrophonics – Moduled Tower
https://www.printables.com/model/178619-hydrophonics-moduled-tower

The original design proved to be functional, but over time I wanted to improve modularity, structural stability, ease of assembly, and long-term usability. Another important goal was to remove several issues present in the original design.

This new version is a refined and expanded evolution of the original concept, featuring:

• clearer separation of functional modules

• improved stacking logic

• better support for structural reinforcement

• more flexible height and spacing options

• a dedicated module for custom attachments (e.g. grow lights)

Fixed issues (hopefully 🙂):

• plant roots overgrowing inside individual modules

• water leaks between modules

• insufficient structural strength

The goal of this project is to provide a simple, scalable, and maker-friendly hydroponic tower that anyone can print, assemble, and customize to fit their own growing setup.

🌱 Key Features

• Fully modular & stackable design

• Designed for PETG/PLA (water‑resistant and food‑safe variants recommended)

• Easy assembly

• Compatible with standard hydroponic pumps, pots (5cm) and tubing

• Scalable: add or remove modules freely

• Printable on Prusa MINI+

📦 Included 3D Models

1 Bottom_Module

Purpose:

• Serves as the base of the entire tower

• Sits on reservoit with water and water pump

Important notes:

• This module must always be the bottom-most part

• Designed to sit on a flat surface of reservoir lid

• Internal water channel for water pipe

Image:

2 Base_Module

Purpose:

• Main growing module for plants

• Each module contains 2 plant slots for hdyroponic cups Ø5cm

Features:

• Internal water channel for water pipe

• Can be stacked repeatedly to increase plant capacity

Image:

3 Space_Modul

Purpose:

• Creates vertical spacing between Base_Modules

• Useful for plants with larger leaves or roots

Features:

• No plant slots

• Can be stacked multiple times

• Internal water channel for water pipe

• Ring for M4 inserts to add custom attachments e.g. growing lights

Image:

4 Space_half_Module

Purpose:

• Half-height spacing module

• Allows fine height adjustments

Typical use:

• Between Base_Module and Top_Module

• For optimizing plant clearance

• Internal water channel for water pipe

Image:

5 Top_Module

Purpose:

• Final module at the top of the tower

• Entry point for the water hose from the pump

Important notes:

• Must always be the top module

• Distributes nutrient solution downward through the tower

• Internal water channel for water pipe exit

• Mesh for eaqual water distribution and overflow hole in the middle

Image:

6 Hydrophonic_Tower (Example Assembly)

An example configuration demonstrating one possible setup:

• 1× Bottom_Module

• 1× Base_Module

• 1× Space_Module

• 1× Space_half_Module

• 1× Top_Module

Image:

⚠This is only an example – the system is fully customizable.

🛠 Assembly Guide

Step 0 – Prepare the modules

• Each module has a holes on the front side which are ment for M4 inserts, which can be later use with Connector to fasten the modules together

• On top and bottom side of each module are small holes for cylinder magnets 8x10mm which can be use for holding and aligning the modules

Step 1 – Prepare the Base

• Place Bottom_Module on a reservoir lid

• Screw the Module to the lid - you can use Barel_Holder

Step 2 – Stack Growing Modules

• Add Base_Module(s) on top of the Bottom_Module

• Insert Space_Modul or Space_half_Module as needed

• Add magnets between the modules into designated holes or use plastic Pins to support the structure

• Add Connector from the front side of the modules to fasten them together

Step 3 – Install the Top

• Place Top_Module at the very top of the structure

• Insert the water hose from your pump through the tower into the Top_Module inlet. I recommend using a Ø18 mm steel pipe to reinforce the structure from the Bottom_Module to the Top_Module; the plastic water hose from the pump can be routed inside this pipe. Steel pipe can be hold in place by adding M4 inserts from the back of the modules and adding M4 screw.

Step 4 – Final Checks

• Ensure all modules are aligned correctly

• Verify unobstructed water flow

⚠ Disclaimer

This design is provided as-is and isn't currently tested.
Use food-safe materials if growing edible plants.
Water pump and reservoir are not part of the desing.

❤ Feedback & Improvements

If you print this project, share your makes and suggestions! Improvements, remixes, and feedback are always welcome.

Happy growing 🌿