Project Progress - Indoor Herb Forest Scaffolding

Plants are growing nicely

Plant Death: Some were killed by fungus, some were killed by diseases I couldn't specifically point out. Some wilt out and die because without a capacitive soil sensor the rate of water evaporation indoors isn't something I can manage easily.

Why? I'm guessing because each person in the house has different thermostat requirements and the watering recommendations don't work

Solution: I've switched to a Kratky system where the plants root remain submerged in water and they're exposed to oxygen as the roots drink up water. It's a very low-maintenance way of growing that's highly effective.

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Problem: Water Drainage

One problem is refilling all the water jars everytime I've to replenish the nutrients or clean up the water.

Solution: Bell Siphon

The bell siphon has gone through various stages of prototyping and I'm struggling a little bit with the design.

Why? Because Youtube is a Scam.

I don't have any background training in science or engineering so when I saw this video my heart was like, "I love you".

Water levels itself under atmospheric pressure. So this video is using some trickery.

Not that the principle doesn't work. But I've had to prototype a lot in my house to get something working.

This video is just on loop
This video is just on loop

A Working Prototype

This adds some design constraints, however, so I've done a bit of a pivot around this main idea.

What I wanted initially was a nice clean insert that helped me. I will still design this in 3d and print it and see if it works as a proof of concept but it's not going to benefit from the modularity I was hoping for.

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Bell Siphon Design (Possible WIP)

The bell-siphon design will involve a fair bit of design and arrangement to get working.

The following will need to be more thoroughly tested with each design unless I can figure out a way to manage simulate the fluid flow dynamics

Challenges - Arrangement: To drain an entire container of water the subsequent

Challenges - Different Volumes of Containers:

Challenges - Specific Waterflow requirements: To drain the containers I will need

Bell Siphon Alternatives

One thing I'm considering as a possible solution for this is laser cut wooden containers that I seal with a food safe wood sealant. These would either need a valve for draining or would continuously drip water.

But this would change the design constraint of having an insertable siphon I can put everywhere.

Physics may not be on my side. Or I might need to develop a stronger facility with it.

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CNC Designed Pegboard & Attachments

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Fusion 360 Design

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