The Ossie motor

[captainpecan]

Hi All,

Here is youtube video I have seen referenced in the Steorn Demo thread. The builder experienced no voltage loss from his batteries during a 24 hour continuous run. He uses magnetic gear for the rotor, and the actual rotor magnets are two cylinder magnets in the middle that interacts with two stator coils. The full circuit consists of only the battery, 2 reed switches, two high speed diodes (they look like as 1N4148 or 1N914 or similar), two coils and one series resistor.

Here is the link: http://www.youtube.com/watch?v=dYgsuJT1zwg 

I do not wish to distract anyone's attention from his own activity of course but I think this video is worth seeing.

rgds, Gyula

Yup, that's running on the exact principles the Ossie motor does.  Nice design too.  I like Hector's work, the guy in the video.  I've always followed all of his builds. 

@Jimboot,
Glad I could help, but please, if your setup works best keep working with it.  I'm just offering my understanding and theories, by all means test and experiment before you take anyone's word on a new design.  You never know when everyone else really is wrong, and you are right!  We are all just searching and learning as we go.  But we definitely want to learn from everyone elses mistakes, so we don't have to repeat the same ones.  My goal is to find all new mistakes to make! lol... That's how we learn.

[Jimboot]

Yup, that's running on the exact principles the Ossie motor does.  Nice design too.  I like Hector's work, the guy in the video.  I've always followed all of his builds. 

@Jimboot,
Glad I could help, but please, if your setup works best keep working with it.  I'm just offering my understanding and theories, by all means test and experiment before you take anyone's word on a new design.  You never know when everyone else really is wrong, and you are right!  We are all just searching and learning as we go.  But we definitely want to learn from everyone elses mistakes, so we don't have to repeat the same ones.  My goal is to find all new mistakes to make! lol... That's how we learn.

Couldn't agree with your more mate! I live my life but that. I am very learned I'm building a second motor so I can compare perfomance. I'll be ditching the lesser performing coil arrangement.  edit: The hard part is defining "lesser performing"

[gyulasun]

Looks like an Ossie variation to me. Interesting tho. My D cell ran for 97 hours before I stopped it. Voltage before the run was 1.32 after it was 1.36

Hi Jimboot,

Yes, I have been aware of your excellent series of tests and the only reason I included that link here is that I also thought it to be an Ossie variant, using diodes, reeds switches and coils, only the mechanical arrangement of the magnets and coils are different.  I did not want to offend anybody here.

Re on your recent asking where to put the scope probe. Laurent has showed mainly two measuring points, one is across the final ends of the series coils and another one is across a 1 or 100 Ohm resistor to see the voltage drop and estimate the current draw from the battery.
Because these battery operated pulse motor setups are ground independent circuits i.e. they have no any connection to the mains, normally there is no problem which point of the circuit you clip the scope probe on when you wish to see the pulses across the coils, the only consideration could be to see a positive going waveform on the screen and this happens when the ground clip i.e. crocodile of the probe is connected to the most negative polarity part of the circuit and the "hot" center pin of the probe is clipped to a 'positive' point.  For instance the most negative point of the coils in Ossie circuit is the negative battery wire via the reed switch and via the 2.2 Ohm to lower leg of coil L4, if you consider Ossie's schematic on Naudin page here:
http://jnaudin.free.fr/ossiemotor/indexen.htm   So I would connetc the crocodile of the probe to the common points of L4 and R1 and the pin tip of the probe would go to the upper end of L1  if I wished to see the waveform across the 4 series coils.

In these scope shots Laurent used scope settings like 10 ms for the time base range switch and 20V/DIV setting for the vertical scale:
http://www.overunity.com/index.php?topic=8731.msg227021#msg227021

It is always helpful to know what these setting have been at the moment the picture is taken from the scope display when you want to show it or ask about it.

His first picture in that link shows the waveform across the his coils and the lower picture shows the diode bridge output, being the crocodile is connected to the diode bridge negative output and the tip of the probe is clipped to the positive output of the bridge.

rgds, Gyula

[captainpecan]

Yes, I have been aware of your excellent series of tests and the only reason I included that link here is that I also thought it to be an Ossie variant, using diodes, reeds switches and coils, only the mechanical arrangement of the magnets and coils are different.  I did not want to offend anybody here.

You certainly did not offend anyone here.  That post of Skycollections video is very much on topic.  I think someone was just getting tired of the Ossie motor getting so much flack over at the Orbo thread where it was born, they just expected that video was going to be promoting the Orbo again.  A quick view of the video, and I think everyone here agrees that it is right on topic here.  Thanks for posting it.  I also have been finding much about this TYPE of motor, including adams variations and stuff over at energetic forum, and I am curious where hector is working on his at?  He seems to refer to it as his SAM motor.  Just have not seen or heard of that name of a motor before.  Has anyone else?  Overall, It appears from watching his other video's, he drifted from making an Orbo replication into what he has now.  As it seems most have been ending up doing.  Not that the Orbo doesn't have merit, just that a true replication of an Orbo without any real build data from Steorn, has pretty much made many move onto other stuff that they are seeing results with.

@all,
I have been searching the net for a good oscilloscope to order.  I'm looking to spend less than $200 if possible, and have found a few that look good on ebay.  Does anyone have any suggestions on where to get a pretty descent one?  I like the detail on Whoopy's scope traces, could you share with me what type of o-scope you are using also?

[futuristic]

Hi.

This scope should be more than good enough:
http://cgi.ebay.com/Hantek-DSO-2090-PC-USB-Digital-Oscilloscope-100MS_W0QQitemZ280422059620QQcmdZViewItemQQptZBI_Oscilloscopes?hash=item414a750e64

This one has 40MHz bandwidth. And I have read some good reviews online about Hantek DSO-2090.
I think that gotoluc also has it.

I am using much cheaper one with bandwidth only 12Mhz and is still more than enough for basic researching.

Frenky