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vesperhbt
Advanced Member
USA
445 Posts |
 Posted - 01/11/2009 : 2:44:35 PM
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Well I know that every one is combining several items for there core in the coil.
What is the best for this center and can it be made in our home shop and for a cheep cost?
Well I know it can.
What are some types of coil centers that are common?
Welding rod R60
Air (nothing in the core)
Bolts
Nails
Screws
I think I have found the answer to this question after testing hundreds of coil cores and there interaction fields.
Before I disclose my idea to you all what things have you all tried and what is the best gain you have seen.
More to come on this topic lets have a mind storming session on this really what are your thoughts?
vesperhbt
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vesperhbt
Advanced Member
USA
445 Posts |
Posted - 04/11/2009 : 06:12:51 AM
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Well I'm still looking to hear about everyones core material of choice and there results of using said materials. So what are we all using?
I will post what I use in a few days I think you will find it very interesting.
vesperhbt |
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comwarrior
Moderator
United Kingdom
477 Posts |
Posted - 04/11/2009 : 12:02:17 PM
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core material...
I've seen people using air cores which do seem to work...
I'm using two diferent cores...
On my big unit i'm using M4 threaded steel rods...
On my little one i'm using an iron filings and PVA mix...
i'm not sure which is the prefered but if you want to use iron filings i'd reccoment mixing with epoxy...
The less epoxy you use the better. When i did my iron filing mix i only used two drops of PVA... but i don't reccomend using PVA if your doing something big because PVA contains water and it will rust the iron if it doesn't dry fast enough...
As for M4 threaded steel rods, the idea of rods is that it straghtenes the magnetic flux and 'focuses' it towards the ends of the core... the thinner and therefor the more rods the more focusing you got...
The magnetic density of the core is critical, too magnetically thin and a bifilar may start self oscilating. Too dense and you'll loose power trying to magnetise a heavy lump...
As a rough guide, the inside of a 500g spool is about the right size even if you fill the spool with wire...
I have been told that iron filings arer the best but not tested if this is true...
----------------------------------------------------------------------------------------------------------
Generator Systems Moderator
"Energy can not be created nor distroyed, it can only be changed into other forms" - so lets do some changing!
"Every Action has an equal and opposite re-action" - Why not use the re-action to create an additional action?
95% efficiency, I dare you to do better!
http://www.youtube.com/user/comwarrior69 |
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vesperhbt
Advanced Member
USA
445 Posts |
Posted - 04/11/2009 : 6:12:45 PM
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Yes I too use a version of iron filings but to get the best magnetic flux I pretreated this in a special way I will describe this very soon. I am glad you shared this information it is good to know, what others are doing for the ultimate benefit.
I am putting together the instructions for how I build my core today I will post this tomorrow I think if I get it done.
vesperhbt |
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tchr
Starting Member
Germany
11 Posts |
Posted - 07/11/2009 : 11:23:14 PM
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Coil core material.... We found that using LARGE Neo's [1 1/2 x 1/2, or larger!] has too much attraction for any iron core, but was more successful when we used magnetite [sand from the Hawaii ocean beaches], or left it hollow core. Also too high of RPM with huge Neo's makes less voltage and current production [also more dangerous when they fly off :) ]. --- Our smaller ferrite, or up-to 3/8 inch neo worked will with either metal fillings, or weld-rod. Also, contrary to my original thoughts, iron filings that DO RUST inside tended to do better as the months past. Don't really know why.
Just some of my school kids project conclusions.
The old shop tchr.
shoptchr |
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vesperhbt
Advanced Member
USA
445 Posts |
Posted - 08/11/2009 : 03:41:44 AM
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Very interesting data. I have confirmed the rust data a year or two ago. I will be placing my recipe for my cores on this topic soon it involves rust (in a way). So check back, I will have the time to post all the steps on Wednesday I think.
Thank you for the data.
vesperhbt.
"The power to change the world"
www.youtube.com/vesperhbtmotor |
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BiDaDiKuNuKu
Advanced Member
Netherlands
333 Posts |
Posted - 08/11/2009 : 1:06:36 PM
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i have use nails and welding rods...but didnt like the drag(cogging) and making of the core...haha
so now ima using air core...feel the breeze...:))
Peace!
V2DAY
http://www.youtube.com/user/BiDaDiKuNuKu
"1 often meets his destiny on tha road he takes 2 avoid it" |
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vesperhbt
Advanced Member
USA
445 Posts |
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BiDaDiKuNuKu
Advanced Member
Netherlands
333 Posts |
Posted - 10/11/2009 : 1:56:58 PM
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u have some nice Vids there m8...:))
keep up the good work...;-)
Peace!
V2DAY
http://www.youtube.com/user/BiDaDiKuNuKu
"1 often meets his destiny on tha road he takes 2 avoid it" |
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vesperhbt
Advanced Member
USA
445 Posts |
Posted - 10/11/2009 : 2:18:56 PM
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Thank you I am trying to start from beginner level and go to advanced so that it is easy to follow and anyone can build. I hope I explain it well enough?
vesperhbt
"The power to change the world"
www.youtube.com/vesperhbtmotor |
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BiDaDiKuNuKu
Advanced Member
Netherlands
333 Posts |
Posted - 10/11/2009 : 2:35:02 PM
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well if i can understand it(i did)...it should not b a problem 4 the rest...haha...:P
Peace!
V2DAY
http://www.youtube.com/user/BiDaDiKuNuKu
"1 often meets his destiny on tha road he takes 2 avoid it" |
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vesperhbt
Advanced Member
USA
445 Posts |
Posted - 10/11/2009 : 2:47:53 PM
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Thank you. But you are very sharp as well.
Okay I am getting a batch of my core material together and so I will be recording a new video on this for the reference to you all. It is a bit time consuming to make but worth it in the end.
I will be doing this over the next few days since there is a proses to it and it takes some time to do. But I will do my best to fill in all the details so it is easy to follow.
When I get all the ingredients together I will post them all here in this topic.
vesperhbt
"The power to change the world"
www.youtube.com/vesperhbtmotor |
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BiDaDiKuNuKu
Advanced Member
Netherlands
333 Posts |
Posted - 10/11/2009 : 11:45:14 PM
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Thnx 4 the sharpness m8...:)
ima just a nobody pretending 2 be a somebody...os was it the other way around??...haha...:P
* When I get all the ingredients together I will post them all here in this topic.
Good ima always hungry 4 some good stew...haha...lol...
take ur time m8...dont rush it...;-)
Peace!
V2DAY
http://www.youtube.com/user/BiDaDiKuNuKu
"1 often meets his destiny on tha road he takes 2 avoid it" |
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vesperhbt
Advanced Member
USA
445 Posts |
Posted - 11/11/2009 : 01:08:59 AM
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Your to funny. But thank you I will post shortly for my mix I use a different mix for the new rotor, will go into this later.
vesperhbt
"The power to change the world"
www.youtube.com/vesperhbtmotor |
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JustAnElectrician
Advanced Member
USA
256 Posts |
Posted - 15/11/2009 : 06:13:01 AM
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FERRO-FLUID CORES (I have not tried it but thought about it alot)
I'm sure one could make it, base is oil and filled with very tiny iron filings
or magnetite sand. Looks like a light oil like that old household oil, the
name escapes me at the moment. Comes in a small metal can, with a red tip.
Oh, 3-in-1 oil! That's the stuff. Needs some viscosity to suspend the filings...
OPEN SOURCERER APPRENTICE!
...Just An Electrician...Since 1985... |
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JustAnElectrician
Advanced Member
USA
256 Posts |
Posted - 15/11/2009 : 06:14:28 AM
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quote:
Originally posted by tchr
Coil core material.... We found that using LARGE Neo's [1 1/2 x 1/2, or larger!] has too much attraction for any iron core, but was more successful when we used magnetite [sand from the Hawaii ocean beaches], or left it hollow core. Also too high of RPM with huge Neo's makes less voltage and current production [also more dangerous when they fly off :) ]. --- Our smaller ferrite, or up-to 3/8 inch neo worked will with either metal fillings, or weld-rod. Also, contrary to my original thoughts, iron filings that DO RUST inside tended to do better as the months past. Don't really know why.
Just some of my school kids project conclusions.
The old shop tchr.
shoptchr
Copper Oxide conducts electrons better than pure copper too, GO FIGURE!
Rob
OPEN SOURCERER APPRENTICE!
...Just An Electrician...Since 1985... |
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vesperhbt
Advanced Member
USA
445 Posts |
Posted - 15/11/2009 : 2:19:57 PM
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Good responses I like the way every one is thinking. Some really good ideas floating around. What more can we think of?
vesperhbt
"The power to change the world"
www.youtube.com/vesperhbtmotor |
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JustAnElectrician
Advanced Member
USA
256 Posts |
Posted - 15/11/2009 : 10:34:21 PM
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I am also theorizing on COPPER CORES. Diamagnetic material, it follows the generated fields
while ?amplifying the field? I believe???
I have some copper cored relays, the RS275-0001 if memory serves.
STOP PLAYING TEACHER, VES, AND REVEAL YOUR IDEA!!!
:D Just raising my voice for effect :D
OPEN SOURCERER APPRENTICE!
...Just An Electrician...Since 1985... |
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vesperhbt
Advanced Member
USA
445 Posts |
Posted - 16/11/2009 : 3:45:23 PM
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Well getting ideas is half the fun is it not.
I will list the make up of my core tomorrow. how to make the core I will need to make in a video and I am awaiting 2 of the key ingredients.
it takes several days to make the core but well worth the results.
vesperhbt
"The power to change the world"
www.youtube.com/vesperhbtmotor |
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BiDaDiKuNuKu
Advanced Member
Netherlands
333 Posts |
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vesperhbt
Advanced Member
USA
445 Posts |
Posted - 17/11/2009 : 8:46:14 PM
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I will be adding my materials here tonight when I get back to the office. LOL
vesperhbt
"The power to change the world"
www.youtube.com/vesperhbtmotor |
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vesperhbt
Advanced Member
USA
445 Posts |
Posted - 18/11/2009 : 11:42:21 AM
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Well every one I will need to make the video to go along with this to explain how all this goes together but here is the list of items that I use for my core.
First off you may ask your self are you crazy vesper that is nuts but I assure you I have tested every kind of core possible to any searches I have heard of and this is the best fit for the power generation.
1. Iron oxide (not the kind you buy----I make my own and so can you)
2. Copper Oxide
3. Cobalt oxide (granule only) hard to find some times.
4. Boron power
5. Magnesium oxide.
Then I use a PTE or Nylon or polypropylene mixture to use as the binding agent.
The plastic is important for what you want from the core, Poly mix is for magnetic field isolation. Nylon is for amps, PTE is for voltage. Keep in mind I may use 2 or 3 different core combinations to get the power ratings I am wanting.
A good all a round binder is Acrylic, clear only.
I call my cores "ICCBM" for obvious reasons. the rough formula is as follows:
I = 1 part
C = 1/32 part
C = 1/32 part
B = 1/16 part
M = dusting the core mold only
What is a "part" well that is up to you {say 1 ounce} is your starting point then you can go from there just do the math for the rest of the calculations.
On the binder just enough is used to ball the materials together it will be like stiff whip cream / cool whip. if it is runny it wont work as well. This mix has a work time of between 10 and 30 min. It can be milled and shaped as though working with plastic. How ever can fracture if over heated.
I have more chemicals on there way so as soon as I get them I will make the video to explain it all.
Things you will need to do this:.......(CAUTION) you will never be able to use any of this for food again....(EVER)
Old blender with dulled blades (must be glass)
Silt fine screen
Iron filings
Vinegar
Salt
Soap (dawn only)
baking soda
glass mixing bowel
core mold
plastic liquid mixes or solvent reduced plastic.
Grounding prob
Measuring scale digital (a good one)
This proses is not fast and will take 3 days
Well that should get you thinking.
vesperhbt
"The power to change the world"
www.youtube.com/vesperhbtmotor |
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Lorke
Junior Member
USA
58 Posts |
Posted - 18/11/2009 : 5:11:32 PM
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Cut / paste / print. Now to look up suppliers and how to. Thanks.
****Its like building a puzzle but you have never seen the picture, and you only get 3 pieces a week.**** |
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vesperhbt
Advanced Member
USA
445 Posts |
Posted - 18/11/2009 : 7:57:12 PM
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Well its a proses to make but good results I will post more information when I make the video as well.
vesperhbt
"The power to change the world"
www.youtube.com/vesperhbtmotor |
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nigeq
Starting Member
United Kingdom
9 Posts |
Posted - 18/11/2009 : 10:21:02 PM
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wow vesperhbt! that looks very interesting I look forward to the vid!.
but as that is probably beyond my current technical abilities I was thinking of using steel wool tamped tightly into the core and held in place with a plug of milliput (or other two part epoxy putty such as magic sculp)at the end furthest from the magnets and a plug of the same mixed with steel wool at the magnet facing end,
Has anyone tried anything like this?
nigeq |
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nigeq
Starting Member
United Kingdom
9 Posts |
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Topic |
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Mixture for the best core for your coil.
