Rodin Theory & Coils

[Rosphere]

Well, I did some measuring and a little winding today.  I tried to show my methods in the pictures here; "... worth a thousand words," they say.

My mid-store-isle decision to get the ten inch decorative foam ring, eyeballing the probable hole size based on both my memory of the ratio of the hole in the images and my memory of the size of my wire spool, was correct.  The spool fits through the center, (albeit only axially,) with just enough clearance to drop the spool through the hole for each and every wind.

This is by far the hardest coil to wind; it is damn near a two man job.  I am pleased with my resistor-spacers, but I am not pleased with my windings: they seem too loose.  The wire tends to slide around on the foam a bit.  I have stopped winding until I can acquire some bee's wax, (as recommended by Bob Boyce for coil wrapping in general.)

I have gone around a half a dozen or so cycles of twelve winds.  The spool needs to be unwound a bit, dropped through the hole, twist out any loops to avoid a wire kink, and wound around the slippery foam, held against its neighbor, and repeat for every turn.

Half a dozen cycles of 28 AWG has only gotten me about 10%, at most, of the way through the first, of two, windings.  Let's see:
12 wraps X 6 cycles so far X 10 ten-percents X 2 wires = me dropping that spool through the hole over 1,440 times.  If it takes me about 8 seconds for each wrap it will take over 11,520 seconds, or about three and a half hours worth of fussy wire wrapping.

Since I am only about 20% into the total wind, at most, and I will be making better windings using bee's wax later on, I will unwrap what I have done so far.  I will take the opportunity to get some length measurements per each 12-wrap cycle so that I will have some idea about the wire lengths used in a completed coil on this decorative foam ring.

[c0mster]

Great job Rosphere. It looks like wrapping these coils is going to be a real challenge, and we thought the TPU was hard LOL.

[supersam]

@rosphere,

just a quick stupid question and then an observation, that you can probably comment on.  why did you start with 36 points?  it has been my observation that the whole rodin toroid should be about nine points.  three of which are not actually physically connected to the other six.  IMHO, should we not consider wraping on a nine point toroid, with the pattern actually going from points 1-2-4-8-7-5?  and then use a second winding for the 3-6-9?  i know that this a little asymetrical when trying to conceptualize how to wind the coil, however would this not give us a physical pathway to send a pulse of any kind of sine wave, through a heterodyne pattern.  thus leading us to the unconnected perpendicular points that intersect on the 3-6-9?  will this possibly give us the right vector to receive any transverse power?

just a stupid question, and an observation, or was that maybe more, sorry guys.

lol
sam

ps: i did like you, i am sure, count the number of coils on the coil that marko held up as an example of a rodin coil, in the videos. there were twelve. why?  it doesn't seem to jive.  i have also read that noone has built a true or perfect rodin coil.

[Rosphere]

@rosphere,
why did you start with 36 points?

See image from video...

[Rosphere]

Besides, 36 = 3+6 = 9; no problem.