DEK motor with U-coreless coil or Lenz boxing against Lentz

[Yucca]

Thanks Laurent and Chet, it´s not as pretty up close as it looks on the photos . I only have a hand saw for wood and one file and no vice so my hands are still aching. I bent the acrylic on my gas stove and also put lots of tiny bubbles in it.

I will make a special strobe light: I will put red and green LEDs pointing at the coil, and stick white circles on the magnets, then I can light the LEDs with the micro like this:

Green for the coil on time.
Red for the coil short time.

This method combined with oscilloscope over the coil should help to get a physical feel for what´s going on.

My progress will be slow but steady, I have about 10 spare hours a week for doing this. I predict the microcontroller will take a couple of weeks to program.

Nice set of magnets you have Laurent, I will keep looking in regularly at your experimental building.

Also I may understand what happened when that outrunner delaminated a magnet:

The nickel coating might have had a tiny imperfection where it was not stuck properly to the magnet, the imperfection could have been very tiny.

During takeoff (max power) the tiny piece of nickel foil with air underneath got heated through eddy current and began to vaporise.

As it vaporised it made the imperfection larger and so more nickel foil became free, this caused more vaporisation etc. a runaway explosive effect.

To cure it you could remove the nickel coating from your magnets (use slow electrolysis through nickel and copper salt mix) and then recoat your magnets by dipping them in epoxy marine paint. I have never tried this myself so try with a scrap magnet first.

[woopy]

@yucca

very good idea for the  magnet 's delamination i will report to the manufacturer and see what they think

@all

i had a good discussion today with some friends of mine an we discussed of a possible working principle of the UCC

first  how  the Nali2001 circuit could bring back energy to spin a 3 volts  small engine   and prop + 3 leds           it    seems to be  that  the  Nali 2001 circuit transform      a part of the the JOULE (heat) accumulated in the coil  during the powering  pulse    back in electrical power          without this recovery circuit       this  energy would be     "lost "           in heat   unless of course you need heat         anyway very good for the efficiency  !!

second i make an experiment

if you remember  on the DEK proto motor    i  fited a UCC  to work  as a generator    the result was very clear   it was a AC current    (unable to spin a DC motor)+ a strong decelarating of the the rotor

so today i tested a new setup  with the same "generator" UCC  but this time i put a Reed switch  to get only the generation output  when the magnet passed inside the UCC(see picture)  so i got  the current of only 1  directional movement of the magnet  inside the UCC   that is DC current  and it eems that the   the BEMF is very  very small      is it due to the fight of Lenz against himself     of course this little set up is not  very reliable   and i encourage you to test yourself

very interesting


good night

Laurent

[BEP]

@woopy

In ucc-boxing.jpg, area marked 'match null'.....
Please be aware that beyond an unknown distance the net will not be zero or even close to zero. If the distance is too great you should find one end of the magnet using attraction as inverse square while the other attraction is inverse cubed.
So, basically I suggest minimizing the distance of magnet travel from one loop of the coil to the other loop.
This distance will require experimentation. In any case the net should not be exactly null.

[jadaro2600]

This device is intriguing, does it work? ...is there a movie of it?

I like the coil also, it's simple - easy to manufacture, similar to how they do bent coils in real manufacturing.

[woopy]

@BEP

I agree the relation between the length ( N-S) of the magnet  and the UCC legs is probably very important.

Have you some idea of what to do for the begining   i have thought that the length of the magnet (N-S) would be the half  of the gap between the UCC legs  ??

very good your magnet test system with a Ampclampmeter   very instructive comparisons

@jadaro2600

exactly as you said it is very simple to do    and you will see that it works very well   i don't have movies untill now

@all

and now i have to buy a scope to inspect  the details

i am very happy to learn a new matter      as my favorite one is aerodynamics and flying machines

good night

Laurent