Muller Dynamo

[lanenal]

Below is a picture with the scope connected at the AC point before bridge.

Answer: I run out of neo magnets. I am sure that more magnets will increase the output. I have ordered more togheter with the magnets for the new setup.

@romerouk:

I have read through all the new posts before posting.

Thanks for answering my questions by taking closeup pictures and giving reasons why the setup is in current shape. Meanwhile, I also realize that your current build left a lot room for improvement, clearly the potential is amazing and the condition of obtaining selfrunning does not seem to be too demanding, therefore successful replication should be quite possible given the skillfulness of the people here.

Yes, I agree with you that no more demo video need be made to convince those suspicious, because that is simply impossible! Just wait until replications come out. We can all keep doubting, but no more demo helps any more. Replication is the only way to drive out all suspicions. Therefore I think it is wise to concentrate on replications, but no more persuations!

At this moment, I am still struggling with the timing. I am not sure when the hall sensor activates the driving coil yet -- even with the help of your closeup pictures. Neomagnets are quite strong, it could be the case that the hall senser is activated well before it is above the big neomagnet on the rotor. Another possibility is that the drive coil is activated when it is approaching the neomagnet next to the one that is activating the hall sensor.

With scope shots we might resolve this issue for good. I wonder if you have a scope with two pairs of probes. Then one pair of probes is fixed to the generator coil immediately before or after the driving coil, the other pair of probes is fixed to measure the voltage drop across the driving coils. This way we should be able to see for sure when the driving coil is activated in relation to its relative position to the neomagnet on the rotor. If possible, please do this for both driving coils.

Thanks a lot!

lanenal

Edit: We need a simultaneous measurement of the voltage on the generator coils immediately before or after the driving coil to determine the relatvie position.

[toranarod]

I am about to get another rotor manufactured. as you know the cost is in the tooling so I pay for one is expensive.
so i can have more than one made. If any body is interested please say as I will just get them to do a few more. you will get them for the cost of what they cost me. and  postage.

this is for a rotor the dimensions are on the drawing 

[scratchrobot]

@toranarod, how much will they cost you?

[e2matrix]

Several of our guru's have mentioned using Schottky diodes.  I think that's an excellent idea and I can't see how it would effect anything in a bad way (99% sure).  Can anyone recommend a particular number that would work well in this replication?  Most are cheap enough that even using all Schottky's to make FWBR's should not add that much to the cost but what model number might be best here? 

[toranarod]

@toranarod, how much will they cost you?

this why I am put out expressions of interest the company is going to ring me today will a quote.
I know the bearing center may be different for others but its based on a very ready available old hard drive size. trying to make it possible for the most basic novice to have a go.  cheaper the better. the Drive is WD caviar. this is the most common.

looks like the ferrite cores are going to be 10mm they are the cheaps and easiest to get.