This morning I popped the 3 silver filament cells off the robot 3d printer and started another set. by tomorrow Evening if all goes well I will have all 24 printed out. Then I can work on a smaller portable version. I received the  bacteria sample which is sourced from a aquarium setup and maintenance product. The much needed pure copper wire and pure zinc wire has arrived, but I only received 10 ft of the zinc when I ordered 20 foot. The rest is set to come Monday. 20 foot should be enough for at least the initial testing. I will have all 24 cells by tomorrow evening from 3d prints. They will need to be sealed with epoxy or something similar before use as 3d prints have pores that liquid could slowly come through.