I’ve been reading and commenting in @Larry3215 Adventures in Aero threads for a while growing my own desire to build one of such systems. The only difference is that I’m going to do strawberry, not weed.
Just to catch up your attention here is the video on YouTube and a picture:
- A quiet oil-free compressor (160 liters per minute on input, 54 dBa)
- The main pressure regulator with 5 micron filter and dryer
- A nutrition tank made from a plastic beer keg, pre-pressurized by one of the air line leafs with its own pressure regulator
- Air atomizing line with its own pressure regulator,
- An only one Chinese nozzle so far with…
6, 7. …two normally closed 12V electric valves (one per nutrition and air supply lines),
- A hand made controller
- A root chamber 1250 x 700 x 500 mm (~ 49" x 28" x 20").
- 240W LED lights (Samsung lm301b 3000K + 660 nm) from China.
The first pieces I’ve got made this “Young grower kit”:
A compressor, a beer keg with additional parts, a few pressure regulators, nozzles and some tubing.
The root chamber become the most difficult part of the build. I wanted to have a big enough one to be covered by a light I have and to test different plants density. It took around two weeks to build it.
Its made from aluminium shapes and PVC film 0.4 mm for furniture faces.
If you are interested in build pics here they are. Actually, A LOT of them. May be even too many.
Everything has started from a few metal lines:
First of all - the storage stand:
Looks crooked, right? I’ll fix it later.
Then I started making a frame. So cut the metal down to parts. Every piece got its own mark:
Then time for inner space came.
Trying to whip parts in, but no luck - this PVC film doesn’t like glue:
So, hello rivetter and rivets again!
Broke my beloved automated rivetter in the process:
But at the end it got some shape:
Not without problems…
The next is a Montessori board for adults:
And, finally, preliminary results!
The controller consist an esp32 devkit v1 board, a step-down power converter (12V to 6V) to power the esp32 and a solid state relay to open valves. It connects to the home wifi and then to mqtt server and waits for commands. The controller and valves are powered by some local brand 220V to 12V@5A LED power adapter I bought via local BBS.
I’ve written a separate small web-based control panel which works outside of the controller (currently on my laptop. It will be rewritten, of course, to be more high-level: like to allow to set timers and to control sensors (which are not available yet), but the controller will work independently. Now it works independently too, but requires external command to start and stop misting. Anyway, it is for test only and to be improved in the future.
I have a lot to do with pressure configuration as well: I don’t like the mist at the moment. I might be wrong but the mist what is going up are too dry.
At the same time I need to figure out how to make the film light-proof: it appears that it is not.
But in overall it looks very promising and I’m really excited!
Hope it wasn’t very boring (just a little). If you have any comments or questions or need any details: please feel free to ask. And any advice pretty much appreciated!
P.S. As usually sorry for my English.
P.P.S. And special “Thank you” for the @Larry3215, it is him and his invaluable AAA threads hooked me here. Very appreciate!