Custom u cores anyone?
Started by unknown · · 62 posts · last reply 6 May 2012
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#1 ·
So.. anyone who has looked for Stan's U cores knows they cannot be found! (If someone has found a source, please let me know) Their may be substitutes, but I feel the best plan of action would be to pull together and order custom cores to our specifications. I have all of the sizes from Don, but I need to know what you guys think about the material they should be made of, permeability... ect? Remember, it needs to work between 0 and 10 khz
I'm already tried Adams magnetics, but they don't actually make the cores themselves and they said I would have to order around 1000. so that’s not really an option. I'll be contacting some other companies as soon as I get a better idea of what we need? and once I know that other people are interested. The price for you guys would be cost plus shipping, nothing extra
attachment_8929 meyers pics (15).JPG
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#2 ·
it seems that having a custom core made is more difficult then I thought, I'm still checking into more company's, if anyone knows a good site to buy U cores please post them. -
#3 ·
A friend of me made 3 pairs for testing - 2 of them was sent to Outlaw and Tony. We are still looking into the permeability and induction of the cores. The price is high for one sett, but after all,they are custom made. When we have the correct value, I recon that there will be made a few of them in the same fashion. But in the end, a production mold must be made, also something that I've investigated and have offers on. -
#4 ·
Cool! Hopefully I can get my hands on one when that day comes -
#5 ·
Has anyone tried to find a place to buy ferrite
in sheets? looking at stan's and u core's
that others have done they look like they were
cut from a sheet. -
#6 ·
Has anyone tried to find a place to buy ferrite
in sheets? looking at stan's and u core's
that others have done they look like they were
cut from a sheet.
Nope....
Ferrite is nasty stuff to cut, but already know that, ill guess...
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#7 ·
Here are a few images from the process used to cut our very first U cores - for your pleasure
As I mentioned, it takes several attempts to do this, but we learned and have refined the method. The cost is always going to be higher then using a mold to cast the cores. I am letting you know that we can manufacture these types of cores, but this is foremost used only to get the correct value and getting the correct value is not the most easy task at hand. But we are getting there.attachment_9350 U core replication.jpg
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#8 · date not recorded
glad someone is doing this!! they look great -
#9 ·
I have built the vic we may need a lot of these cores soon, e-cores give the best results according to meyer
Ionizationx: water as fuel » Stanley Meyer non electrolysis waterfuel systems » Stan Meyers system 3 » How to build the vic tried and tested
Check out my post, a tried and tested working VIC
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#10 ·
Dos anyone know what the permeabiity is supposed to be? -
#11 ·
I was told M20 for frequencies around 10K by a mag engineer, but Stan's work is not the norm. I'm still not convinced that the core has to be thin and flat. -
#12 ·
Tony reminded me that stan states M27 in one of his documents, I'll have to find out which document though to find out if it's for the dual U core vic or another one. -
#13 ·
ferrite with a perm around 2000 is good for 10khz.
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#14 · date not recorded
The patent WO 89/12704 page 6 mentions the M27 core material,which is a steel laminate non grain.It is an alternate type of core for the flat core vic that we are talking about here.It's a Canadian patent.Figure 9 shows the coil layout.
Don -
#15 · date not recorded
Awesome, thanks for the info Don.
Now the hard part, finding a place to purchase some cores or core material. Anyone have any info on where to get some?
So what were looking for is CRNGO M27 steel .105" thick? -
#16 · date not recorded
Hms, I did a quick google search and didn't come up with to much unless you want to buy it by the ton. My father works at car tech, I'm going to ask him if they produce anything like this -
#17 · date not recorded
M27 steel is a laminate,you need several layers to get the .105 inch thickness,not just one piece.It won't work unless it's laminates.
Don -
#18 · date not recorded
Ok I didn't know it was laminate, I missed that earlier, so the origonal core used some type of ferrite it looks like.
If were using a max of 20kHz we need some pretty thin pieces here. -
#19 · date not recorded
What are the limitations of going in the direction? I always thought electrical steel had a very narrow frequency bandwidth -
#20 · date not recorded
you can purchase the M27 laminates here at the following website...I contacted them a while back and if I remember right you can get enough to make 10 - 15 cores for around $150. http://www.protolam.com/page7.html -
#21 · date not recorded
Awesome, Thanks Tony,
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#22 · date not recorded
Does anyone know what kind of enamel and what the build was on the 29awg wire Stan used in the 5 coil VIC? -
#23 · date not recorded
This is my first post and I'd just like to say I've learned more on this site in the last 6 months than any other site in the last 5 years. Thanks!
I believe I may have found a source for ferrite u cores. Magneticsgroup.com offer ferrite plates which I believe could be shaped with a laser cutting machine commonly found at steel fabricators. They offer one size, p/n B-1377 which is 3.87" x 3.87" x .118" which should be sufficient for one u core. Here's the link if anyone is interested.
http://www.magneticsgroup.com/f_other.htm -
#24 ·
Mr. Don,
Some here are suggesting Stan used iron or other wire in his dunebuggy coil, and that ferrous wire is the only way to make the vic coils work. I believe you said he used copper for all of his dunebuggy coils. Could you clear up this confusion? -
#25 ·
All the VIC coils for the resonant cavity were copper wire.There was stainless wire there,but I never seen any coils made with it.
The core material looked like ferrite,but may have been iron.Don't know for sure.I think that it was a ferrite type,but can't be totally sure.Iron looks like ferrite too.
Don