Wind Turbine V5

thingiverse

YOUTUBE : https://www.youtube.com/watch?v=8jUuHAaTOZA I have build this turbine with the objective to produce electricity to charge small devices like smartphone or powering a led strip. I can't use solar panel because my balcony is lit by the sun 4 hours per day. But luckily for me, i live near the sea and there is constant wind which coming with the tide, so i decided that building a wind turbine can be a good alternative. This wind turbine is pretty reliable and robust, it survive many storms (wind > 110km/h !) with little damage (some nuts tend to loosen, they were remplace by nyloc). This wind turbine starts with wind speed of 3m/s (approx .10km/h) with no load. The measured torque on the shaft is approximately 0.25N.m at 20km/h wind. I think is sufficient to move a stepper motor to produce some electricity but it will increase the wind speed at which the turbine starts. I am using stepper motor from Digikey (ref 1528-1062-ND) as generator and a full bridge rectifier to produce 12V, but you can adapt a motor from a broken printer for example. The turbine produce approximately 11.5V, 2mA @15km/h wind speed (mesure with multimeter and anemometer). NB : I don't plan to produce further revision of this wind turbine a I moved in a country where there is no wind at all (Swiss) (Microdelta Rework, printable dimensions: Cylinder 150mm base, 200mm high). Tools: Scewdriver (Pozidriv or Phillips depending on M4 screw) Dremel Saw to cut threaded rod or you can use Dremel Components : 1.5mm Clear Acrylic Plastic Sheet, size A2 Ø100mm pvc pipe (sorry for non metric users), you cut the pipe in three equal parts with a dremmel tool 4 Generic ball bearing 28x12x8 (choose IGUS BB-6001-B180-30-ES if possible but they are really expensive) Threaded Rod, M6, 3 meter Threaded Rod, M10, 1 meter M6 Nylon-insert lock nut -> qty 10 M6 Nut -> qty 20 M6 Washer -> qty 20 M4x40 "Poelier" type Screw -> qty 10 M4 nut -> qty 10 M10 Nylon-insert lock nut -> qty 1 M10 Nut -> qty 20 M10 Washer -> qty 20 Cable gland PG11 for the motor Printed with in ABS from E-motion tech 1.75mm, 250°C Enjoy ;)