Development of the wind generator blades is a great way to save money on the first wind generator to build. My recommendation to everyone is to start with a pair of homemade blades and when the wind generator has saved you a bunch of money to move to a good set of knives from fiberglass. Lets look at how to build a wind generator blades.
Wind generator blades can be made of wood or PVC. I do not recommend building any wind generator blades made of wood for several reasons. The first reason is that no matter how well you coat the blade with water protectant one of them is bound to be a little chip in it. May it be big enough for you to see, but most of the time you'll be hard pressed to find it. When this crack makes wood absorbs moisture will start to make it harder than other blades. This will lead to unbalanced blades that will wobble a little. If not caught in time imbalance can completely break off blade (they move fast and they are heavy, so get to serious injury). Wooden blades are the times that and it is quite complicated (you have to airfoil shape, etc.). I prefer to use PVC as well as the blades may be constructed and balanced in the afternoon, and performed quite well for what they cost.
To all three blades all you need is one part of the 4 "or 6" PVC pipe that is less than 4 "long. For blades that are less than 30" long you can use a 4 "diameter PVC but if your blade is between 30 "and 48", you will need to use more 6 "PVC pipe. I do not recommend building the wind generator blades longer than 48 "while the PVC begins to bend quite malo.8 foot diameter wind generator will continue to produce enough power though, so you can save up for a good set of knives windmax.
you need to do is mark down the central tube, but do not cut it! Blades actually move in this environment because they catch the wind better (meaning more energy produced). The blades taper from about 5 "at base of 2 3 / 4 "at the top. When you have marked where the cut will look like you are cutting a very strange shape, but do not worry this is how it should look like.
Cutting blade is just the first part of the wind generator blades. You also have to sand all the edges down so they are smooth. You will notice a marked difference is.
Before we can balance the blades is also necessary to put several coats of UV protective paint on them. PVC becomes brittle when exposed to sunlight for long periods of time. Putting the two layers of UV paint on them, they will stay nice and strong for as long as you use them. Any color will work as long as he says, "UV protected" on it. If you are unsure just ask someone at the hardware store. Tell them that you are looking for colors with UV protectant in it.
Now all you need to do is balance the blades. To do everything you need to do is to be mounted on the hub and place the center of something that turns easily (a piece of steel rod with some bearings pillow block works well. Just give the blades a good spin, and record what one ends up at the bottom (number of blades ). After a few turns the blades will appear at the bottom more than others. just a bit of equipment at the end of the blade off and repeat the process. It does not take too long and balanced blades are much safer than an unbalanced (remember unbalanced wood blades ?).< / P>
This is pretty much everything to make wind generator blades. This can be done in the afternoon, and they will last quite a long time (plus they look pretty good too). If you're interested in learning how to build a wind generator simply click the link to the right that says "Become a member" or join our newsletter.
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