Pierre's 170W in 1600W out Looped Very impressive Build continued & moderated

[d3x0r]

Ya, figured that using the smaller slots should be the good plan.  I nearly overflowed though; I measured, computed, and then ended up padding 15% more windings (approx).


Sooo tedious....
I though that planning ahead a bit wouldn't be so bad.. and I could make pretty winding stack at the beginning/end....  I should have just done it the simple way.  Was so very hard to get the last few coils slotted.


Now just have to sort out the rats nest, and am attaching lead wires to the coils; which then will go to some connectors...

[d3x0r]

think I got the polarity all -correct... did make a compass of sorts so I can test the connections...


had an ancient crochet needle from high school ...could use that to pull thread through the coil loops... can't really see; but did secure the first layer with thread; then decided to just comb them all in a single direction
...

falstad circuit

can just reduce the input voltage to compensate for lack of serialization...

can either connect 2 relays per coil , or 2 per 2 coils; paring opposing coils so there's 18 pairs driven 2 directions for 36 relays that way (in parallel)...
though there doesn't seem to be much point in the diodes...

[T-1000]

think I got the polarity all -correct... did make a compass of sorts so I can test the connections...

Hi d3xor,

Do you get N/S looking towards center and outside? And in regards to windings, do the outer layer have enough of distance to inner? What happends if winding ending on outer place is activated together with winding starting from inner place on same pin? Do you still get proper magnetic polarity?

I am still looking for stator like in the sketch attached. It is really hard one to find for windings to take place like in there. Any ideas?

[d3x0r]

Hi d3xor,

Do you get N/S looking towards center and outside?

Yes I get etiher by activating one relay or the other (or will; right now I just used a battery to activate a coil... )

And in regards to windings, do the outer layer have enough of distance to inner? What happends if winding ending on outer place is activated together with winding starting from inner place on same pin? Do you still get proper magnetic polarity?

I am still looking for stator like in the sketch attached. It is really hard one to find for windings to take place like in there. Any ideas?

all layers are both outer (one side in a empty slot) and inner (one side over another coil)....

each coil will be attached to 2 relays.  Activating one relay or the other connects + to the coil on one side or the other.  Normal-closed position the coil is connected with - rail...  so activating any coil vs any other coil has no effect... in the schematic above, each coil (or pair of coils if paired with diametrically opposed  winidng (1-18, 2-19, etc) ).. pairing the near N/S coils as pierre (1-6, etc),  then when 6 is active, it would end up activating 1, which when 6 is the one to be active, 1 should be off, with a gap until 35 which would be the prior coil to be on with 6... (none of that makes any sense does it?  )  But while drawing lots of diagrams; I noticed there was always an opposite pole exactly opposite on the stator.. well that is until opposites where squiashed together and a gap was left...

to go back to the coils; if both coils in a slot are active they will be opposite polarity, but they are on the boundary, and the pole actually shows up within the coil... so the ridge to one side will be north and the other side will be south... there should be enough coupling between to be any sort of issue...

Re your picture though; why do you have a dark cicle?  It's kinda confusing what is the solid and what is space in that image... it's kinda Escher-esque.

Looks like I'll have to add an extra arduino this way... learned they have interrupts though so should be easy enough to chain them

[r2fpl]

Hi d3xor,

Do you get N/S looking towards center and outside? And in regards to windings, do the outer layer have enough of distance to inner? What happends if winding ending on outer place is activated together with winding starting from inner place on same pin? Do you still get proper magnetic polarity?

I am still looking for stator like in the sketch attached. It is really hard one to find for windings to take place like in there. Any ideas?

T-1000,

Looking for a stator for 26 slots ?