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UPDATE March 19 2023: My original project simply featured a fish tank water pump and Air pump which were manually turned off and on every day, since then I have created a box to hold the water pump, air pump as well as a micro-controller to automate the daily switching on and off of the pumps. These newly added 3D files are the:

Automation Box Lid Automation Box Middle Automation Box Base

Please note that these files are not needed if you plan to run the hydroponics on a simple fish tank water and air pump, you'll only need to print these if you want to automate the care of your hydroponics. Info on the hardware I used and my code can be found in the link below (if this link doesn't work try a different browser, I have had reports that it doesn't work on Brave but should work on Firefox, Edge or Chrome)

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Fairly simple modular hydroponics system using mostly off-the-shelf parts revolving around a 5cm PVC pipe.

More Info on the build here: https://apps.appshed.com/buildithydro/