In the last few days I've been thinking about the structure of the printon_turbine and the system around it.

• The housing has been processed in such a way that it is possible to equip two sides with spear valves. In this way, the buckets of the turbine can be driven from two opposite sides. This is only optional, which is why I also designed a suitable plug in case you want to use one inlet only.

• I started with the missing details for the spear valve. The size of the water jet should later be adjustable via a small DC motor. I have integrated a suitable reduction gear and DC gear motor into the design.

• I have also added a mounting option for a pressure sensor (https://de.aliexpress.com/item/1005004132586500.html) to the spear valve. In this way, the water pressure in the supply line can also be monitored electronically. This sensor is integrated in a G1/4 thread. If not required, the opening can simply be closed with a corresponding plug.

• To make the system easy to transport, I looked for a suitable housing and decided to use one of the Ikea SAMLA boxes (45L) (https://www.ikea.com/de/de/p/samla-box-transparent-30102974/). On the one hand because the size fits my purpose well and on the other hand because these boxes are cheap and available internationally. Seems like Ikea has created a box-standard here. :D
  I could imagine that the complete system would later fit in three of these Ikea boxes.
  One box for the turbine, generator and associated inverter/battery manager. Another box as a storage or transport case for the required hose/pressure line and the third box can be used as a water inlet including filter system.

• I also looked around for a suitable generator. In the future I will probably also offer a 3D printed generator as an alternative. Until then, the following should do it first.
  • https://de.aliexpress.com/item/1005001452335337.html

What do you think about the current state? Let me know your thoughts. :)