Greetings to all lovers of homemade products and those who just looked at the site in search of interesting ideas for creativity. Surely many of you often had to experience the inconvenience associated with power outages in the country. Since the summer cottage season begins to gain momentum, it is already spring in the yard and summer is not sunburned. And this is the time of vacations and vacations. Soon we will all rush out of town into nature. That is why I propose to take note of the option of making a small wind turbine. The design is not difficult to manufacture, it will not take up much space in your luggage or in the trunk of a car. In addition, this option is to save electricity at the expense of nature, which is why the author made this creation. As I said, the design is not complicated, the only thing is that he made some parts for it on CNC, but they can be cut out with another, more accessible tool, or you can pick up something similar. Further, you will see for yourself. Below I present the author's video, it demonstrates the principle of operation of the device. You can charge a gadget from it or connect a USB lamp to it.
Now I will list all accessories and materials , which the author used to implement the idea. For the manufacture of the turbine housing (as I will call this device), he used 8 wooden slats measuring 40×10 cm with a thickness of 5 mm. The blades were made from a plastic pipe with a diameter of 110 mm and a length of 30 cm.He also needed a sheet of plastic 4.5 mm thick, a round wooden base with a diameter of 32 cm and a thickness of 20 mm, an M4 threaded rod 42 cm long, fasteners (screws, bolts and nuts), four bearings 608RS. Now electronics – a stepper motor, two rectifier bridges, a USB connector, a capacitor, a LV7805 linear regulator, a pair of cables for electrical connections (about 30cm). From the tools the author needed a grinder, a multimeter, a CNC machine, open-end keys for 10 and something else on the little things (they will be mentioned in the description process).
First, the author prepared turbine blades. I marked a piece of plastic pipe and cut it off with a grinder to a length of 30 cm.Then I again made a marking along the body, and cut it along the length into two identical parts. The edges must be sanded.
At this stage, the author cut out parts for connecting the blades from a plastic sheet on the CNC. As you can see, they have a simple shape, so here it is quite possible to get by with a jigsaw. He also cut two plastic bases in two halves. Blades will be installed between them, as well as wooden strips of the body will be attached to them. The blades were pulled together with a hairpin. Additionally, two discs were cut out of plastic. He glued each one to the bases. A bearing is installed in the central holes of these parts. I also prepared a wooden disc. I cut a hole with a diameter of 19 in it, and along the outer perimeter I made a tangential wash under the blades. In the latter, grooves were also cut. The principle of assembly and installation on the video under the photo.
Here is a wiring diagram of the electronics. In principle, everything is clear, nothing complicated. After preparing the circuit, I started assembling the circuit. The author borrowed a stepper motor from an old printer and had a pulley on its axis, this part had to be removed. This is followed by soldering the wires according to the diagram. All chain elements are assembled, now they need to be fixed on the turbine.
So we got to the assembly. First, I attached the engine to the already prepared piece of plexiglass – the base. Then the author screwed this platform to the wooden disk from below. The axis of the engine was connected to the end of the hairpin with a piece of plastic hose of the required diameter (the connection must be tight). I fixed the USB connector with a thermal gun.
The turbine is ready, all that remains is to install it on the street in an open area and you can use free energy.
That's all, thank you all for your attention, I apologize if you missed something, or made a mistake in something.
Good luck to everyone and see you again at Samodelkin's!