Coil Wrapping information

[Joe Average]

Hi,

I cant seem to find information anywhere on coil wrapping techniques.

If I wanted to build an motor or solar cell, what's the most efficient way
to make
copper coils?

What about thickness, type of metal (anything better than copper?),
number of times the copper is wrapped etc...

Any help would be appreciated.

Cheers,

 

[John_H]

Joe Average wrote:

I cant seem to find information anywhere on coil wrapping techniques.

I once had an excellent text covering the topic, from the days when I
did electrical engineering as a tertiary subject. Unfortunately I
lent it to someone who never gave it back (the only books left in my
library belong to other to people).

I do still have a very detailed book on automotive armature winding,
published in Australia in the 1970's. If you're keen enough to search
around second hand book shops, or even your local library, there
should be no shortage of trade manuals and the likes.

If I wanted to build an motor or solar cell, what's the most efficient way
to make
copper coils?

One off or mass production?

Motors, for example, have been traditionally rewound by hand but I
doubt if any are still maufactured that way unless in some third world
countries.

For DIY, coils can be wound relatively easily and efficiently using
formers in a lathe. You need to rig up some sort of counter and a
clutch to control the tension -- a strip of felt in a laboratory
retort clamp works fine for me. Wooden formers with a removeable end
are easy to fabricate. Alternatively you could do the same thing
manually using some sort of stand cobbled up for the purpose (armature
rewinders normally work this way).

What about thickness, type of metal (anything better than copper?),
number of times the copper is wrapped etc...

Minimum thickness is determined by maximum current, number of layers
isn't normally crucial. Copper has the best performance for the
money, but electrically gold or silver would probably be better in
many applications. Aluminium is used in some applications because
it's lighter and cheaper. Copper winding wire is also readily
available with various grades of insulation, depending on the intended
application. Best to buy it from a specialist supplier of winding
materials.

--
John H

 

[Fred Ferd.]

(the only books left in my

library belong to other to people).

because you cannever ne

I do still have a very detailed book on automotive armature winding,
published in Australia in the 1970's. If you're keen enough to search
around second hand book shops, or even your local library, there
should be no shortage of trade manuals and the likes.

makes you wonder how we will do anything when these books arent available
even in
libraries of antique books.

The top ten fiction authors from 1724 ... no worries, we have all the books
carefully preserverd right here..

How to build an electric motor ? sorry ,all the libraries of english books
threw those out already, you can buy chinese books apparently, they come in
english translations but they arent wery gud.

you are milo ledge may wary.


goo nyte.