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- "'Note"': To charge the 12V battery, it is … "'Note"': To charge the 12V battery, it is necessary to transform the AC produced by each phase into a DC. * Use a three-phase AC to single-phase DC voltage rectifier. * Solder each phase of the output cable to each input terminal of the rectifier. * Solder a single-phase cable on the 2 output terminals of the rectifier. Protect the system in a waterproof box and fix it on the body of the wind turbine. "'Note"': It will be necessary to install a charge controller between the wind turbine and the battery. between the wind turbine and the battery. +
- '''Notes''': This step includes use of dan … '''Notes''': This step includes use of dangerous elements (resin, fibers, etc. ) Make sure to put on the latex gloves and safety glasses till the end of the molding. * Prepare 1 disk of glass fiber of the shape of the mold then keep it aside. * Using mold release wax/wax, wax the entire mold, inside/outside, the internal/external cover and also the two 12mm bolts which are long enough to pass through the mold completely. Prepare two 150g container of polyester resin and two 2.25ml syringes of the associated catalyst. * Prepare a container of 300g of mixed resin with 150g of talc also a syringe of 4.5ml of catalyst. * Position the steel disk in the mold, place the isle on the top and screw the assembly with the greased bolts.screw the assembly with the greased bolts. +
- * Equip yourself with: * An angle of 206 … * Equip yourself with: * An angle of 206mm (50x50x6mm). 2) A tube of external diameter of 42.2, length 100mm: '''Pivot wind turbine'''. 3) A tube of external diameter of 33.4mm, length 150mm: '''Rudder Pivot'''. 4) The '''cradle''' previously made. * Prepare the angle according to the diagram. * Solder the wind turbine pivot tube under the angle, centered with the 14mm hole and perpendicular to the angle. * Solder the rudder pivot tube at the back of the angle (See photo) * Solder the cradle at the end of the angle by centering the center of the cradle on the point A. For the soldering, it is necessary to sacrifice one of the four holes allowing the fixation of the spindle. It is not a problem though since all the other holes are very well accessible. '''Note''': The heat released by the solder have a tendency to work the metal, deform the pieces and their positions. To avoid this problem, make a few weld points at a few strategic locations around the perimeter of the weld and then pull the weld bead. er of the weld and then pull the weld bead. +
- * Equip yourself with: 1) A tube of exte … * Equip yourself with: 1) A tube of external diameter of 42.2, length 130mm: '''Rudder Pivot'''. 2) An iron plat of 50 x 50 x 6mm: '''Cover of the rudder pivot'''. 3) A tube of external diameter of 33.4mm, length 700mm: '''Tail rudder'''. 4) An angle of 30 x 30 x 5, length 250mm: '''Rudder Support'''. 5) A plywood cut according to the desires of each, thickness 6mm and ''0.1m ² of surface'' (for example a right-angled triangle of height 300mm and base 600mm): the ''Rudder''. * On the '''rudder pivot''' open one notch according to the diagram. * Solder the '''cover''' on the outside, opposite to the notch of the '''rudder pivot'''. * On the tube '''Tail rudder''', make a [https://www.youtube.com/watch?v=iDD-EVj7zIc tube notch] with the help of a pattern allowing a 110° welding of the '''rudder pivot'''. * Drill the angle '''support''' at 3 points to attach the '''rudder''' with bolts of 6mm diameter. * Weld the angle '''support''' perpendicularly at the end of the '''Tail rudder''' cularly at the end of the '''Tail rudder''' +
- * Make a rotor mold out of a 16mm thick plywood for the base and the border, the cover can be thinner. The diameter of the holes in the cover should allow the passage of the nut for the 12mm screws. * Screw/glue the base and the border together. +
- * Position the nacelle on a test mast. * … * Position the nacelle on a test mast. * With the help of a person, turn the generator at 1 turn/second. A metronome can be used. Set a voltmeter to AC and measure the voltage between each phase. The value should be close to 1.9V. If it is not, check the gap between stator and rotor * Fit the propeller, the face down towards the generator, then screw a nut with a washer on each threaded rod. It is possible to use clamps for the interlocking. * Install the rudder on the pivot. ocking. * Install the rudder on the pivot. +
- * Pour the associated syringe into the 15 … * Pour the associated syringe into the 150g resin container et mix vigorously. * Pour this resin in the mold. * In the same way, prepare and pour the resin + talc. * Position the fiber circle and let it soak properly. * Prepare and pour the last container of resin. It is better to have extra resin that overflows. * Position the cover and put heavy metal parts on it (angles, tubes, etc.) the attraction force of the magnets will press the excess resin. * Let it harden, then demold, deburr and varnish or paint. , then demold, deburr and varnish or paint. +
- * Pour the associated syringe into the 30 … * Pour the associated syringe into the 300g resin container + talc. Mix vigorously. * Pour some of this resin into the bottom of the mold. * Put one of the two glass fiber discs to the bottom of the mold and soak well with resin. * Place the mounting of the coil in the mold carefully. Every coil must be placed correctly in its place and no wire should come out of the mold. '''It's a delicate step'''. Pour the first container of resin completely. * Pour the associated syringe into the 300g resin container + talc. Mix vigorously. * Pour the content on the assembly. '''Notes''': the talc not only charges the resin using a cheaper material but also diffuses the heat during the drying of the resin and also during the future operation of the wind turbine without damaging the stator. * Position the second disk of glass fiber and soak it well. * Prepare and pour the last container of resin. It is better to have extra resin. * Position the cover with the help of the detractors and secure them with the waxed screws. * Position the threaded rods attached to the cradle delicately, the part split in the resin. Use the drill bit as the center piece between the isle and the cradle. * If necessary, use a clamp to secure the three-phase cable so that it exits the stator correctly. Allow to harden (it might take several hours). Then demold, deburr and varnish or paint. . Then demold, deburr and varnish or paint. +
- * Screw the spindle of the bell hub on th … * Screw the spindle of the bell hub on the cradle of the nacelle * Screw a bolt on every rod of the stator. * Screw the stator on the cradle. * Prepare 4 threaded rods of12mm diameter, 140mm length . (See method: Step "Generator, stator: Preparation threaded stator rods"). * Fix the rotor on the bell hub with the 4 threaded rods and16 nuts. * Fit the bell hub onto the spindle, carefully repositioning the ball bearings and lock nuts (tighten to the maximum and then loosen a quarter turn). The system must turn freely. * Adjust the gap between the rotor and the stator by adjusting the nuts of the stator. The gap should be about 1mm. of the stator. The gap should be about 1mm. +
- You can download an educational file created by Low-tech lab in the "files" tab of the tutorial (tab under the section Tools & Materials) +
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