winding your own coils how easy is it ??

[targets]

any tips and feedback on this topic?

 

[Elton]

Not !!! You have to have equipment to tune them to the frequency.. Both transmit out, and receive.

Coil is an antenna ........

 

[Tom_in_CA]

Elton is right. The answer is "not". Perhaps for toys/hobby stuff back in the 1950's and '60s, but not for today's highly tuned robotically made machines. A 1000th of a fraction of an inch variance of wire length makes a difference in the over-all outcome of efficiency, depth, etc.... Simply impossible to get accurate by hand, to the specs needed to compare with what can be bought over-the-counter from ones made in a factory (where every single unit/coil comes off the line with exact same specs).

In the old days of hobby kits (Heath-kit, etc...) you could probably have made something from off-the-shelf components, soldering things together, etc.... But today the quest for the maximum depth has driven the manufacturers to get their stuff seeeoooo super-high-performance balanced, that it would be impossible to match what is done by robotic machines, using hand-tools and eyes.

 

[Jerry-Wi]

For people who build metal detectors as a hobby, the coil is single most difficult part of the project. It can be and is done by a lot of people but they have a lot of test equipment as well as the specifications of the coil. DD coils are easier to make than concentrics but there are many variables for both. There is much more to it than simply winding turns of wire around a form. You can expect several failures before you get a good one.

Jerry