This is a very simple grow box which requires only a few 3D printed materials and some off the shelf scaffolding.

You will need a heavy duty shelf, i used this one.

[https://panorama24.eu/collections/belko/products/belko-schwerlastregal-c223-200x100x50-farbe-waehlbar?variant=43263468142821](https://panorama24.eu/collections/belko/products/belko-schwerlastregal-c223-200x100x50-farbe-waehlbar?variant=43263468142821)

Then you need a charcoal filter mat

And at last you need mylar foil

You will proceed to take the wall stoppers to fasten the shelf plates to the walls

then on top of the shelf/cabinet structure you will use the foil clips and charcoal clips to fasten the foil and/or the charcoal filter to the shelf frame. The charcoal clips can do both in theory.

And this is the most simple version, add a LED light and you are basically done. The one I used has a fan to cool it which helps with the chimney effect.

I also added a fly net door as a grow box door but it is not necessary but will be used in future versions.

The box controls airflow on its own with hot air rising up and passing through the charcoal and the front "vent slit". Bottom foil ends naturally restrict inflow by air drag movement.

If you leave a foil gap at the bottom circular at the base of the plant pots the chamber will draw in cold air from the bottom and through chimney effect push it up through charcoal and/or vents.

the bottom has temps of the room and the top about 32 degrees celsius which gives us a nice chimney effect.

Additions:

[https://www.amazon.de/-/en/dp/B0D5Y1XQ6S?ref=ppx_yo2ov_dt_b_fed_asin_title](https://www.amazon.de/-/en/dp/B0D5Y1XQ6S?ref=ppx_yo2ov_dt_b_fed_asin_title)

Added Neodymn magnet holders, you can fix the foil to the metal frame with those easily. Glue the magnets into the printed case and let them hold the foil in place if you want/need. If you place or tape/glue metal like washers to non metal parts of the frame the magnets can still be used to fix foil to that part. Then you can remove the foil at will without issues.

Last picture is a future upgrade path turning the setup into a hydrobox, adding another 1x0,5,2m box to combine into a 1x1x2m box "cube" to house a circular hydroponics setup

What you need for that:

Right now the idea is to use a big round container 60 to 90l and if the material is not safe for food consumption to dress it in a food safe aquaponics foil.

A water pump

Air stones for saturating the water with o2

Or special water inlet and outlet design for functioning as an air diffuser

Piping for draining the water behind the plant area

To Do:

Build source compartments and how to adjust the water ways.

Inner circle for nutrient input

Walls for dividing plant areas

And Wall design to faciliate water flow

A version with only pipes and floating plant pots is possible too. Then we would place a long pipe on the ground to act as a giant diffuser

If one would design water pipe inlets in an air diffuser way the negative pressure from water flowing past could be enough to provide sufficient o2.