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Author Topic: Gravity based wind mill design  (Read 10670 times)

Onevoice

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  • Posts: 77
Re: Gravity based wind mill design
« Reply #15 on: July 01, 2008, 07:29:52 AM »
Hi Blacksmith,

I suppose we all have. Mine have their share of blisters, This weekend I was scavenging an old electric lawn mower and shattered one of it's big magnets. Major mess. I did get one out intact though and I'm going to use the biggest fragment to scrounge up some natural magnetite and finish a viewer I started. A bit of advice: Watch out for your tools. Over time, they'll begin to pick up fields as well, Lately, I've taken to keeping mine grouped together in large pill bottles. I'm hoping it will cut down on accidental encounters.

Status update:

Well, I've done it again. I did some more math and guesswork & I'm moving positions of things again. I have all 4 initial lifters finished and mounted. Its back to stator time.

For anyone trying to follow this thread, the idea is pretty simple. The principle of the lever, where 2 objects of equal mass can be made imbalanced based on distance to the pivot point assumes that the weights are both in line with the axis of motion. If one weight is brought about sideways, it can balance as if it were closer, even though it is the same or nearly the same distance. Because this movement is horizontal to the direction of gravity, it can be cancelled out and only inertia and friction prevent its movement This state of imbalance creates a torque on the axle that can be used. To keep the wrights moving along their paths, I'm using magnetic fields. The do not lift the weight but they keep it trapped in a constant field interaction following a stator path that supports the needs of the imbalanced lever. In principle, this is frictionless except for air resistance and Resistance inherent in the axle and hinges used to move the arms inward.

Here is a picture showing the arms in a typical fashion. On the downside it is extended outward and inward on the upside. At the top and bottom its transitioning and moving mostly horizontally within a magnetic trap.
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AB Hammer

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  • Posts: 1253
Re: Gravity based wind mill design
« Reply #16 on: July 03, 2008, 02:50:47 AM »
@ Blacksmith

 I should look at half baked more often. I looked up that link of the windmill and I am quite impressed. It is also nice to see another older time artisan around.
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Onevoice

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  • Posts: 77
Re: Gravity based wind mill design
« Reply #17 on: July 06, 2008, 05:22:15 AM »
Status Update:

Its not easy to get this stuff bent evenly around. I got a basic shape for the stater and some of the supports. I also took a bit of time out to persue an idea I had to apply the iron stator approach to a spiral motor. I plan on posting progress on this one as well, but in a different thread. For now, here's an update pic.

Please guys. Give me some feedback. Is this only quarter baked or do you think I might have something here?
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Onevoice

  • Jr. Member
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  • Posts: 77
Re: Gravity based wind mill design
« Reply #18 on: July 14, 2008, 07:13:28 AM »
Status update:

Well, I haven't had much time to work on this but here is a new - and better focused - pic, I hope. i'ts sideways cause some glue is drying but its showing a good magnetic pendulum effect which was my original idea to drive the lifting arms. When I can get more of the supports in place I'm also going to start adding more weight to the ends of the rotor arms so that the lever effect is more pronounced.

As I've been working on this, I'm beginning to suspect that its going to hit stuckn point when the magnets are at a 45 deg angle. I wanted to avoid it but I'm wondering if I can put in some kind of small kick at that pont. Well, first I am going to finish the basic build and optimize it as best as I can. Then I'll attack any problems that develop. In the mean time, here's better pic.
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Blacksmith

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  • Posts: 19
Re: Gravity based wind mill design
« Reply #19 on: August 01, 2008, 09:13:07 PM »
Onevoice
   How about an update on your project please.
Blacksmith
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