Delay line coil for Newman motor?

[kmarinas86]

I plan to the clean up the coil sometime in December. A few segments of my middle-level coil (neither the top or bottom) is burnt out (all contiguous and has been that way for the better part of 2009), but thank goodness it is segmented, so I can just remove it and that should help improve the speed again.

False alarm! It turns out that these wires still conduct electricity as normal. They were just connected in the wrong way. I have already cleaned out the three remaining coils and I plan to install the fourth coil my next day off from work (Sunday, September 27, 2009).

[kmarinas86]

False alarm! It turns out that these wires still conduct electricity as normal. They were just connected in the wrong way.

Or maybe not...

I discovered that if I damage the conductivity of some wires, it can be temporary. This Monday, I came back to discover that a wire I damaged earlier this month was working again. This would explain why that I initially observed that some of my wires stopped conducting electricity (I didn't assume that it was permanent though). In the end, it was not a false alarm after all. However, it was also true that the wires needed fixing, though that had nothing to do with the conductivity of each individual wire.

I have already cleaned out the three remaining coils and I plan to install the fourth coil my next day off from work (Sunday, September 27, 2009).

It turns out that I did manage to make the video by that following Sunday, but I did not upload the video until Wednesday September 30:

http://www.youtube.com/watch?v=h7eXyz6F-QA

On Monday October 6, I finally cut the length of the gap in half. I do not have a video of this yet because I am waiting for my batteries to be freshly recharged. I expect this to add to efficiency gains of adding the fourth coil. I hope to draw less than 10 watts at around 150 RPM. After adding another coil, I will probably increase the voltage to the 350's.

[kmarinas86]

On Monday October 6, I finally cut the length of the gap in half. I do not have a video of this yet because I am waiting for my batteries to be freshly recharged. I expect this to add to efficiency gains of adding the fourth coil. I hope to draw less than 10 watts at around 150 RPM. After adding another coil, I will probably increase the voltage to the 350's.

I have a video of this now at:

http://www.youtube.com/watch?v=6cIzmhjIK5I

(October 13, 2009)

It turns out that this simple change did not increase the speed of the fan, but it does have a greater mechanical impedance. I believe that lack of speed increase is because the greater torque is not enough to compensate for the increase voltage induction into the wires. However. I hypothesize that when I add two more coils to the top, that the increase in torque will be more significant than the increase in voltage induction per rpm. I know for certain that this will drop the no-load rpm.

Is there enough mechanical load on the system to justify the belief that the rpm will increase when I add more coils?

Two possible outcomes:

1) The RPM increases.
* If this occurs, I expect the current to fall slightly. I expect the speed to reach at 150RPM.
2) The RPM falls.
* If this occurs, I expect the current to at least be cut in half, with a little bit more torque with almost imperceptible drop in RPM.

How would I respond to each situation:

1) Progress with the motor is close to being saturated. The next motor will emphasize using more copper (in excess of 30 lbs) in a more compact, "squared" coil.
2) Progress with the motor is not saturated. I should add more voltage to the system in the future. Details of a possible future design should be investigated later.