Help with winding induction coil

[JJ91284]

Ok

I'm currently making a magnetic powered flashlight. The only thing I'm stuck on is how to exactly wind a magnetic induction coil.
How many windings? What guage for something like 4 volts max but more importantly is the amperage. I also need to know do I use one wire or two and how to I go about winding it, in any particular way. Any information or diagrams would be greatly appreciated.

Thanks

 

[Nigel Goodwin]

Ok

I'm currently making a magnetic powered flashlight. The only thing I'm stuck on is how to exactly wind a magnetic induction coil.
How many windings? What guage for something like 4 volts max but more importantly is the amperage. I also need to know do I use one wire or two and how to I go about winding it, in any particular way. Any information or diagrams would be greatly appreciated.

This is the third thread you've started about this, one would have been more than enough!.

Essentially you will have to experiment, it's an obscure thing you're trying to do, and calculations are going to be useless - the performance will vary wildly based on movement of the magnet, which will never be constant.

A good idea would be to disassemble a commercial one, and see how they wind their coils - I suspect that's by far the largest design challenge of the entire project.

 

[JJ91284]

Thanks guys for the information you provided. The reason why I posted this 3 different times is maybe people would speak up sooner seeing I am desperate. The magnetic flashlight is not actually what I am building, but I am in the process of possibly having something patented that uses the same principal. So I'm currently trying to design it myself and save the money. Since I'm also in college right now. If all goes well, I will let you know how it work out. However if it doesn't work I'm definately making myself the flashlight.


Thanks