Electronics > Projects, Designs, and Technical Stuff
Toroid Winder w/o cutting the wire.
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Oneminde:
I am trying to figure out or access information on toroid winders which use continuous feed rather than loading a cartridge which has a finite amount of wire (length) it can hold. Surely there must be a version where this is not needed ?

Does anyone have any sort of information that can help me ?
Gyro:
I don't think that's even possible.

What do you do with the huge 'excess' loop of wire that would build up as you repeatedly threaded the wanted wire through the centre hole? How would you store all of it on the winding cartridge? You would need to run it the same number of turns in reverse to recover the excess wire and I doubt it would it still be serviceable for further use after all the additional flexing and friction involved.
Oneminde:
I don't know yet, that is why I asked ..  ;)
MagicSmoker:
It is topologically impossible to wind a toroid from a spool of wire unless you unwind the entire spool first before sending it through the center hole for each turn.
JFJ:
Googling "shuttleless toroidal core winder" finds results like this:
https://patents.google.com/patent/US4288041A/en
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