Pringles Wind Turbine (Pleech) - Version One

Step 5 Attach the Magnets

The best thing you can do here is to look at the diagram in the PDF from a few steps back. Basically, you need to attach the magnets (glue, tape, epoxy, whatever works) to the CDs in such a way that the poles alternate. A magnet that faces north follows one facing south follow one facing north, etc. If you're confused, do check the diagram. Marking the poles with a Sharpie also really helps.

Comments

[G14diat0r]

hey, I'm making a generator for a project, and I'm making a small scale model, and I was wondering if there was an equation that I could use to calculate the voltage/amp output of it at different rpms, and with different numbers of magnets.

[Xedrius]

How many Gausses should they have? and how many amp produce it? i want to make one of 5 watt aprox i dont know if this is possible with your design

[DrJekyl]

Looks neat. Didn't those magnets attract/repel each other, while being fitted so close? Did you have to hold them in place till they stuck to the CD?

[netbuddy]

I just bought some magnets, they are listed as N42 Neodymium and are 12mm x 3mmA which I thought would be enough. They have a 2.3 Kg pull force, is this ok for a project like this?

[madcow11]

What size are the magnets? Do you think the "20mm dia x 10mmA Neodymium Magnet" N42 grade magnets from http://www.emagnetsuk.com/index.asp?function=DISPLAYCAT&catid=9 would work?
Also, do you know approx how many turns would be needed for 36 gauge wire in the coils? I am unsure how much i will need.
Thanks, I am using your design for a physics experiment.

[mikejedw]

That's about the grade of magnet that I used, thought maybe slightly larger in size.
As for the windings, the best I can say is that there's a lot. As it happens, I probably would have been better off counting them more exactly, since that would help balance the voltage generated and make it more efficient.
Just a question, then, for everyone... how many wraps did you guys find was necessary?

[madcow11]

Thanks for your reply, I will go with the larger "25mm dia x 10mmA Neodymium Magnet" with N42 grade, to get a bit of extra voltage. I have to write a 4000 word essay in a subject for school and i'm choosing physics, so i am going to test how the number of turns in the coils affect minimum start up speed, voltage, and current. I will let you know the results when i'm done.

[DanLoney]

what kind, or grade of magnets are those? i wouldnt imagne them to be too powerful since they are so close but i want to get a estimate of thier "Electricity moving power"... sounds dorky i know =D and how close to the coils are they?

[mikejedw]

They are actually fairly powerful for their size. I can't recall the exact type now, but I remember them being roughly equivalent in strength to some N40 grade magnets I ordered from amazingmagnets.com. I positioned the magnets so that they'd be as close to the coils as possible without colliding--I think I got within about 2 or 3 mm. Closer is definitely better, if you can manage it.

[DanLoney]

very cool, thanks for the reply i just might have to make an army of these, i saw on the website u can get 50 for a very cheap price haha ~DanLoney

[adrean willis]

hey man, just want to ask do i have to use cd's or can i use any thing? thanx soooooooooooo much bro!!!!!!

[mikejedw]

You can pretty much use anything. CDs worked out to be the right size. We've had discussions on this forum about maybe using steel paint-can lids, too, which might help sort of "amplify" the effect of the magnets. Worth trying!