BiToroid Transformer Project Platform

[Guest]

what would be the BEST material(s) to use for the inner core and the outer core?

Soft iron? or - Ferrite -- or -- Nano-crystalline amorphous material?

And should these be the same materials, or have different permeabilities??

It would seem that the black iron oxide bars I have placed into the secondary cores
are incredibly reluctant to transfer of magnetic flux. With solid cast iron metal
blocks in place of the resin-cast powder, there could be a substantial gain in
performance figures due to the much greater relative density.

Adjusting the ratio of resin to iron oxide in producing magnetite cores may also be
worthwhile for experimentation... the ones used in this initial transformer were
mixed with 20cc of resin to approximately 2.5 tablespoons of black iron oxide. The
resultant goop was pudding consistency, thick yet workable.

[ Videos ] have been posted by codygillespie on casting magnetite.

The matter of obtaining solid cast iron blocks of the correct dimension matching the
size it would take to upgrade this system is something I've not yet explored.

Could peices of cast iron skillet possibly be cut by the use of an oxyacetyline torch?

In regards to using ferrite in place of iron with the er70s mig wire outter core, the
permeability of the wire must be taken into account, for which there seems to be no
information available.

With hi and low permeability 1cm ferrite blocks matching the core lengths of the system
now in place the primary core might be kept as it is, while the magnetite and outter cores
would be replaced with the two varieties of ferrite.

[Guest]

The [ Fair-Rite ] group has custom options listed, although no response was gained from an inquiry.

[ssagurit38]

It's an awesome DIY project. I hope I can make that thing to.

What would be the purpose after you finished the transformer?

[Guest]

What could it be used for? The total input is not accounted
for yet, therefore presumably it would not provide any use due
to its inability to provide excess energy. When aliens talk
with the President on CNN and hand him the controls of their
custom built remote control television is when its purpose could
be to give them hilarious throughts.

Otherwise its purpose is to condense energy from the
interaction of magnetic flux and 25g copper magnet wire into a
capacitive resevoir.