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Amatek 38 Volt DC Wind Generator

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I bought this Amatek Generator Motor from ebay yesterday and I was amazed that it arrived at my house today. I dont think I have ever had anything come from ebay so fast.

Anyway, its an Amatek 38 Volt DC.

It came with the hub and the mount.

Modified With Thinner Blades

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I modified the small generator in several ways as you will be able to see in the video.

First, I moved the pivot point more towards the front of the motor.

Next, I recut the hub and made changes to it that would allow for it to be more balanced.

I then re-mounted the blades and made sure that they were centered on the hub.

Today we have crappy weather with the wind at about 10 mph blowing in from the East.

The Generator is from a treadmill. Its 90 Volts DC and spins clockwise.

Below: Video 1

Below Video 2

Below Video 3

Edited Height

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In these pics you will probably notice that I removed one of the 5′ sections of pipe from the stand or tower. This was to make it easier for me to be able to play with it and work on it using different blades and designs as well as testing for amps, volts and watts output.

I attached a small 12volt light from a car to the positive and negative wires and disconnected it from the battery bank until I am ready and so as not to put any stress on the battery bank. Until I am ready to.

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^ Showing the smaller tower after removing a 5′ section of pipe from the top

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^ Showing the back of the generator and the treadmill motor used.

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^ Now you can see the small 12 volt light attached to the top just to allow for the energy to go somewhere until I am ready for some real testing.

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^ Front of it. You probably see this before in the previous post.

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Wind Generators April 8th 2008

Vertical Test Generator

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I recently built a test stand so I could play with voltage, amps, watts, and try out different blades and props. This small test stand is small enough that I can move it around very easy but heavy enough that the wind will not tip it over.

Here are some pics of the process when I was playing with it. I will also try to post videos and many more pics so that others can see the progress or lack thereof.

Remember that some of these may or may NOT work. I am learning and testing so there will be things that will not work. My point is that even if I can save you the time and money from knowing what will NOT work, then that would be great.

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Top view of the air foil

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Here I added a bolt that connects the top to keep it from pulling apart during the stress from the wind acting on it.

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Pic of the bottom of it. I used small “L” shaped brackets that I purchased new from our local dollar store. As you can see from the pic I used some flat washers however these were not needed and I probably should not have added them. The holes were small enough and the plastic thick enough that the small bolts would not pull through.

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Above: I wanted to be able to mount blades to the shaft but I didnt want to use wood. I found that if you buy a standard cutting board made of plastic they make perfect for this.

I simply traced a round object onto it and cut it out using a jig saw. You can also find old stained cutting boards at your local googwill store. People want to get rid of them if they get stained or a burn mark in them but they are great for mounting to your shaft of your generator motor.

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above: Here is a small test stand I made from some scrap 2×4’s that I had laying in my basement from another project about a year ago. I made it so that I can mount about any type of motor to it for testing.

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Above: You can see here I mounted the alternator that I bought a couple of weeks ago online.

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above: side view of this mess;-)
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above: Turn the pics on their side:

It shows another way to mount these blades. This did not work for the vertical mounting.

(The Pics above)

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above:

To find the exact center of this circle I used the waste that was left over after cutting it out, placed it anywhere in the circle and traced one line across the circle, then one down. It gives you corners that when you join them with a marker will show you the exact center.

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above: I placed the air foils that I cut from 8″ pvc sch 40 (in half) where I wanted them. then placed the brackets where I wanted them. I then used a black marker to mark the holes in the brackets and used my drill to drill out the holes.

Those of you that would rather download these large pics to your desktop you can use this link. I zipped them for you;-)

http://rapidshare.com/files/104146039/04-01-2008.zip.html

Wind Generators April 1st 2008