You will need
- - vibration alert of the mobile phone;
- - drill;
- - copper wire;
- - fluorine;
- - microchip Allegro А1442.
To not buy magnet specially for the stator, use a vibrator old mobile phone. Hold the eccentric in a Vice and carefully, with the awl squeeze the shaft. The next step will be the release of the brush unit. Pry the same pain bruising on the body and clear the site. You can see the magnet. To it out again, use the drill bit that fits the diameter.
Lay the case on a hard surface and slightly tap on the drill the magnet itself will fall. In the same way to get rid of the glued sleeve, which is not needed.
The role of the shaft, use a drill, because they are more durable and resistant to bending. If the inner diameter of the magnet is larger, and the shaft it's loose, wrap it in copper wire of the required thickness. Thus you increase the diameter of the shaft itself in place of its contact with the rotor.
That the design was not scrolled, the method of resistance welding weld the wire to the part. Now connect the shaft with the rotor and fill the space between it and the magnet special super-glue.
For the manufacture of bushings, use the PTFE. Drill through the sheet hole diameter of 0.3 mm and bring the bushing to the similarity of the tube. To the shaft to move freely through it, grind it to the desired diameter. Thus you will get rid of friction.
Now wind the coil. For convenience make on a lathe frame of required size on which the wrap 60 turns. For this you will need about 90 cm of wire.
Soak the coil with glue without removing it from the frame and gluing it to the latter. It is easy to perform only by using a microscope. Make 2 such windings and glue them, causing a minimal amount of glue between winding and bushing.
Solder one end of each of the windings to get one, but with two conclusions, which at the end of the solder to microchip Allegro А1442.
When welding the main thing is to correctly adjust the device. After all, if the voltage or the capacitance of the capacitor will be very high, the wire will not stick and will start to evaporate, leaving microcrater reducing the strength of the shaft.
To fill the space between the magnet and the shaft, use a special transparent adhesive which does not leave a white residue after drying.