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A Vertical Wind Generator from Washing Machine
Motor
Have an old front-load clothes washer and some PVC pipe lying around?
Make a vertical wind generator and go GREEN the DIY way.
Step 1: Remove motor from washing machine
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This step was the most destructive using various implements to separatethe motor assembly from the washing machine. I'll leave it to your
imagination and whatever tools you have on hand. The output of this step
should be the coil assembly and the magnet assembly. Keep the shaft and
bearings if you can also. Mine were pressed into the washing drum and
were difficult to remove without destroying them. Keep the bolts from the
coil and magnet assembly also. You may want to use them for your new
hub.
Step 2: Clean the Parts
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Clean the magnets and coils, and remove any rust that may have built upon the ends of the coils. Then put a light coat of oil on the metal parts or a
light layer of clear coat to keep them from rusting again.
Step 3: Design a New Hub
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This may be the most difficult part. You need to design a hub that will
space the coils in line with the magnets, and also have some sturdy
bearings at each end. I started out with a block of plastic used for an
automotive brake rotor holding fixture. You could make the same on a
lathe, or build one up from layers of wood or other plastic, etc.
Step 4: Shaft Fit
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I saved part of the original washing machine drum shaft where the two
bearings were located and cut off the rest. Then I added some threadedrod in the end where the original bolt was located. The threaded rod will
attach to my blade assembly.
Step 5: Hub and Coils
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Here is the hub bolted to the coils with a cutout for some wiring. At this
point, I haven't rewired any of the coils. There are many DIY generatorprojects on the web using these same washing machine motors and some
describe various ways to rewire them for different voltages and currents.
Your application will define your wiring.
Step 6: Finished Generator Assebl!
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Here's a photo of the magnets and coils mounted on the new hub and shaft
assembly. At this point, you can spin the assembly and measure the
voltage output, current output, vs. RPM. These measurement steps, and a
way to determine the required torque to spin the generator I will save for
my next Instructable.
Step ": #lade Design and Constru$tion
My blade design is based on some vertical blades I've seen, and in
particular, a spinning porch ornament I purchased a few years back. The
Idea is to have a cup-like section of the blade always in the direct flow of
the wind.
Step %: &he #lade Design
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First mark the cutting lines on the PVC pipe. You can sand off the marks
after cutting and/or paint the blades if needed.
Step ': Cut #lades
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I used a jig saw to cut the long flat cuts.
Step (): Cut #lades
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I used a hack saw to cut the rounded sections.
Step ((: Drill Center Hole For *ost
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I used a hole saw to drill the center holes for the PVC post. The center
post has caps on the ends to secure to the threaded rod.
Step (+: Copleted Generator
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I used a hole saw to drill the center holes for the PVC post. The center
post has caps on the ends to secure to the threaded rod.
Step (+: Copleted Generator
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Here's a photo of the completed generator ready for mounting on a porch,
or in a tree, or wherever. This motor was rated at about 400 Watts, so I'm
hoping for 50-100 watts in a good wind.
I hope you've enjoyed this Instructable, See you all next time......
Step (3: ,easureents
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Here's a photo of the completed generator ready for mounting on a porch,
or in a tree, or wherever. This motor was rated at about 400 Watts, so I'm
hoping for 50-100 watts in a good wind.
I hope you've enjoyed this Instructable, See you all next time......
Step (3: ,easureents
No load and full load torque was measured using a strain gage load cell
mounted on a rod located one foot from the center of the hub. Data was
captured using a national instruments DAQ card and DasyLab daq
software. No load was all wires open, full load was all wires shorted. I tried
to move the rod 90 degrees in 5 seconds at a steady rate manually.
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No load torque averaged 0.39 ft-lbs, ful load torque was approx. 1.25 ft-lbs
Step (4: ,easureents
Full load Plot.
Step (5: *art nubers
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LG Washer model WM0532HW
6501KW2002B
Sears Part Numbers
Stator assembly
PART NUMBER: 4417FA1994G
$97.60
Rotor
PART NUMBER: 4413EA1002B
$63.65
Sensor assy
PART NUMBER: 6501KW2002
Call for availability
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(800) 252-1698
Bearing
PART NUMBER: 4280FR4048E
Kenmore 41473
$25.04
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