Here's another construction.
The materials I had to build a new desk fan started to diminish. But everything had to be useless or used. Even a piece of wood that I used was from a broken bench. I found it thrown into a small forest where I was going to ride the bike.
Unfortunately I don't have many photos because the construction was for fun and not for projection.
The fan consists of the following objects.
-Air model nitro engine. Engine a Russian 6.5 cubic ( 40r), not RC carburetor but stunt. It is for control line aircraft. Gifted by an air modeler.
-Three blades pusher propeller 11 x 8 (11 inches in diameter or 28 cm) and a 'step' of 8 inches or about 20 cm. The propeller step is the distance that will be propelled if it makes a full turn under hypothetical conditions without taking into account the reduction in air distance due to opposing forces. A gift too.
-Electric motor 12 volt electric coming from a damaged hair dryer.
-Print head-heat sinks to support electric motor.
-Various A / C cars tubes and TV antennas.
-Plexiglas.
- Part of a rather American automatic gearbox.
(Temporary support base.}
- Screws different.
So the crankshaft-piston-crankshaft was removed and a bearing was added to make the propeller rotate better. The various aluminum parts added were to give some shape to the whole set. I have not yet found the support, as the rationale is to '' hover '' and for this reason I have placed the plexiglass between the fan and the base as a connection between the two parts using its relative transparency.
At the moment this is what it is, but some things will change along the way, mainly on the basis of support. Maybe I make it out of wood and with some springs or a counterweight I can change the fan angle.
In the 2 photos the little fan is with a Carmona bonsai that I make for my sister.
The truth is, I was not satisfied. The design was very simple. So I made the decision to start the fan again. I found a 3.2 mm steel wire and so I thought of making a wire arm that would keep the engine suspended. In theory it was easy but in practice I had to solve several issues such as power supply and the balance of construction. The air R / C engine was connected to the back plate with the A / C car tubes and the electric motor from the electric hair dryer. The whole connection, design and customization was not easy. The piece of wood from the bench became the new base and on the steel wires I made some corners to bring the construction to the proper height. At the engine mounting point with the 2 steel wires, I hid a clamp (for connecting electric wires) and there I connected the power supply cable to the 12v motor. To be able to keep the construction in balance because the base (the piece of wood) was small I thought of using a counterweight. This counterweight comes from a damaged printing machine I had found in 2002. It has now found a new place to offer its services again.
I used a mobile phone charger to power the construction and I connected it to the 2 steel wires to power the cable and the electric motor. I also put an On-Off switch in front of the charger and connected it to a 230v power outlet. So the charger is not a continuous current.
The presentation was made so that someone else could make something similar. It's great to share experiences.
I know !!!!! I do not speak very good your language and I have made many spelling and editorial mistakes. But I think you all understood how to connect and build.
