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Our first sketch focused on a syringe that would conatin the water and would have a connecting self closing tube that the water would be able to pass through when the syringe was pushed down on.
We then explored a design containing misting and capillary action pipette systems to deliver the water but realized that in zero-gravity, water would not be able to be delivered through the misting system.
We then pivoted to a design similar to the original, with the syringe located at the bottom, which would be directly pumped into the growing medium, and the sensors overhead. This this was also oriented vertically which better met the needs of the requirements.
As we further explored this thought, we decided to include capillary action wicking materials instead of syringes to deliver the water and then we began to create prototypes.
We decided we wanted to include a servo larch which would be powered by a Raspberri Pi 4b that would hold the growth media box up and when twisted the growth media would drop onto the water box and the pointy cappilary parts would cut through a mesh material which would allow the water to interfere with the capillary parts. This was the design we went to PDR with.
After receiving feedback at PDR, we decided that we would make a design containing A growth media box that would still drop down based off of a servo into the water resivior box but this time we included side guide rails, spiked on the bottom, no capilaries noe mesh material, and springs that would help assist the box down in zero gravity on the sides.Â
We ultimatley further developed this idea to our current design which can be seen and is explaned in the "Our design" part of this website!
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