Hacking a Toroidal Transformer

RE: Hacking a Toroidal Transformer

DAB — Wed, 15 Mar 2017 17:52:03 GMT

John, you have some of the coolest toys to play with.

They use special machines to wind toroid coils.

As you found, doing it by hand is a real pain. Pun intended.

Now if you want to have some real fun, get some 30 gage wire and make a big step up transformer using the same core.

You have a lot of magnetic field to play with.

DAB

RE: Hacking a Toroidal Transformer

Jan Cumps — Wed, 15 Mar 2017 13:37:23 GMT

Nice (and patient!) work, John.

Lifehack (works only for trafo's where you can get at primary):

If you don't have enameled wire and you need a not-drastic change, you can remove some of the primary windings. Warranty void.

RE: Hacking a Toroidal Transformer

rachaelp — Wed, 15 Mar 2017 07:41:29 GMT

Hi [mention:f80b53cee57c44bc9d7c577d07d7c791:e9ed411860ed4f2ba0265705b8793d05],

I thought it was a very good question when you wondered how commercial toroid winding machines work. Fortunately YouTube has the answer! https://www.youtube.com/watch?v=82PpCzM2CUg

Nice work modifying the one you have by hand though, you did a really neat job [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-627fbb9f-b072-4d88-a8b1-e9c664095c1f/contentimage_5F00_1.png:16:16] I expect you'll be working on how to DIY one of these winding machines next?

Best Regards,

Rachael

RE: Hacking a Toroidal Transformer

mcb1 — Wed, 15 Mar 2017 07:35:02 GMT

That's great work and useful tip about how to work out the number of turns required.

Many years ago I saw a machine for winding toroids (well I think it was).

It was a circle through the core, and I'm trying to picture how the wire was fed ...

but I do recall that it had a centre piece that came off/lifted ...it did something.

This one was large, so whether it's the same technology ??

Mark

RE: Hacking a Toroidal Transformer

kas.lewis — Wed, 15 Mar 2017 06:09:17 GMT

Hey [mention:f80b53cee57c44bc9d7c577d07d7c791:e9ed411860ed4f2ba0265705b8793d05],

Its fun looking at everyday objects that we take for granted and wonder how they automated a system to produce whatever the item may be. It definitely does get interesting I'm sure.

Kas