Muller Dynamo

[romerouk]

just trying to get an idea of the wire required to wind the coils. this is based on 7 strands of .2  so .125 will be inside this figure.

the winding space is only 1cm. the core left goes thru a hole into the top and bottom supports but not touching the magnets.

I got almost 400 emails since yesterday, ...oh my god, what should I do?

[toranarod]

Hi all,

I see there are questions about the rotor being smaller that the magnets lenght.
I am not at home now to recheck but I know for sure that the rotor was made from 4  0.3mm discs.
During the initial building and testings I have changed the rotor, changed the magnets,... It might be a 1cm + 0.5mm magnets togheter, I remember having that on the rotor at one point, but I am not sure, I must check later.
I had to use the heat gun to take the magnets off, initially I dan them in NSNS configuration.
I had measured the inductance and it is 1.203mH plus and minus, not all coils are exact value but with the magnets on the rotor being close to them that might not be exact.

Thank you for you time The Henrie's can be a good guide in coil design.
working on coils all day so i have a good starting point now. If you are still there what sort of former did you use on ether end of the ferrite rod to hold the wire in place and is it still stuck on the end of the coil looks like a plastic washer. or is it?
one of the biggest problems I have always had is find a good bobbin to winding the wire around.     

[sigis]

just trying to get an idea of the wire required to wind the coils. this is based on 7 strands of .2  so .125 will be inside this figure.

Hello,
From photos looks, that high of that coil is about 10mm. It looks that not enough space to place 300 windings?

[yssuraxu_697]

I got almost 400 emails since yesterday, ...oh my god, what should I do?

Do like I do at my workplace, when there are more than 100 unread e-mails just mark them "read" and continue with business as usual Usually ones life does not get worse when doing that

[toranarod]

Hello,
From photos looks, that high of that coil is about 10mm. It looks that not enough space to place 300 windings?

Thats what I thought, but i think it fits now i have done some calculations.