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Messages 5387 - 5416 of 6052   Oldest  |  < Older  |  Newer >  |  Newest
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5387
Hi all. I need to de-magnetize a ring magnet, ferite. I wonder if I can put it in the oven or will it break. Does someone has a idea that can work at home? ...
Eric Vogels
eavogels
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Mar 21, 2007
10:16 am
5388
Put it in the oven Eric. Cool it slowly. If it breaks it is your fault; If it doesn't, it's good advice. Peter...
Peter
mrstropes57
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Mar 21, 2007
10:18 pm
5389
Hi Eric, Jewelers us an air-core solenoid with 120 Volts A.C. to demagnetize their screw-drivers. The trick is to apply a sinusoidally alternating magnetic...
DonEMitchell
mitch2054
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Mar 22, 2007
12:49 pm
5390
Connect it to high voltage or even mains voltage ac for a couple of seconds that will do it. Dc to make a magnet. (very useful for odd shapes) Ac to neutralize...
ian180428
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Mar 22, 2007
2:08 pm
5391
Thanks for the advices. I thnk I will try the easiest way: in the oven. Regards, Eric [Non-text portions of this message have been removed]...
Eric Vogels
eavogels
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Mar 22, 2007
2:38 pm
5392
Hi. Please look at this video: http://www.youtube.com/watch?v=FD-5aVCNbtg&NR It is some kind of dual piston device as well. Regards, Eric. [Non-text portions...
Eric Vogels
eavogels
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Mar 30, 2007
10:25 am
5393
Hi Eric Interesting device. The magnets on the wheel are opposite poles of the magnets on the end of the rods and therefor repel each other. An outside power...
Peter
mrstropes57
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Mar 30, 2007
2:03 pm
5394
No, that is not right. The attraction is when the metal is in between the magnets. Without metal, the magnets are repelling. Eric ... From: Peter To:...
Eric Vogels
eavogels
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Mar 30, 2007
3:03 pm
5395
I'm downloading a much better clip. I will post it when I have it. Eric. ... From: Peter To: minatowheel@yahoogroups.com Sent: Friday, March 30, 2007 4:00 PM ...
Eric Vogels
eavogels
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Mar 30, 2007
3:10 pm
5396
I stand corrected Eric. I did not look closely enough to notice the spaces in the wheel. Peter ... between the magnets. Without metal, the magnets are...
Peter
mrstropes57
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Mar 30, 2007
3:16 pm
5397
I found a much better clip. Hope you have Windows Mediaplayer installed. I embedded the clip at the bottom of http://fdp.nu/dualpistondevice/default.asp Eric ...
Eric Vogels
eavogels
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Mar 30, 2007
7:20 pm
5398
On Fri, 30 Mar 2007 21:19:53 +0200 ... One of the problems with that is the distance squared forces weeken hughe amounts. The animation is easy - the benchwork...
Norman Bollinger
norman6538
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Mar 31, 2007
12:09 am
5399
Yes, I noticed that also. The construction has to be stable (very stable) and I'm afraid that my current setup with the sliding bearings will not hold. But...
Eric Vogels
eavogels
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Mar 31, 2007
7:04 am
5400
Hi All, Please check out the Pendulum/Magnet device in the photo section. I am building this at present and open for input. I have been working with large ring...
Tom Ferko
magnetman12003
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Apr 2, 2007
1:17 am
5401
2 hours at 250 degrees Celsius in a normal oven was not removing the magnetism. After 20 minutes in a wood-burning stove the magnet cracked. Eric. ... From:...
Eric Vogels
eavogels
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Apr 2, 2007
7:41 am
5402
... magnetism. ... Hi Eric, The Curie temperature of ferrite/ceramic magnets starts from 400-450 degree Celsius and usually even higher. So 250 Deg. C is a bit...
Gyula Bartus
gyulasun
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Apr 2, 2007
11:11 am
5403
... Surely the standard method is to place the magnet in a coil, or wind a coil around the magent, apply an alternating current, and gradually reduce the...
wrtner
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Apr 2, 2007
1:56 pm
5404
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the minatowheel group. File :...
minatowheel@yahoogrou...
Send Email
Apr 8, 2007
4:17 pm
5405
I made some progress with building. Although not many people are positive about this device, I think it gets better and better every time I come a little step...
Eric Vogels
eavogels
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Apr 8, 2007
4:27 pm
5406
- Hi Tom: You mentioned in the photo file that you are concerned about getting the timing of the magnet runner correct. It this system is workable (It looks...
trevstar22
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Apr 9, 2007
2:37 am
5407
Oooops! I just realised I saw an almost identical device to this at www.besslerwheel.com It was deciced it would not work. Look at it this way. As the tip...
trevstar22
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Apr 9, 2007
2:37 am
5408
... http://www.geocities.com/geoffegel_99/garymotor.htm This motor did work. ... positive about this device, I think it gets better and better every time I...
Mark Ross
shadow_ii_thief
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Apr 11, 2007
5:32 pm
5409
... swing ... too ... it ... Hi Trevor, You just might be right about your ideas. I have been thinking about what you said for some time and have come up with...
Tom Ferko
magnetman12003
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Apr 11, 2007
11:33 pm
5410
I realise that this is very off-topic but I just have to write that I finally can do with my CNC mill where I have it for. I needed some parts for my device: I...
Eric Vogels
eavogels
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Apr 12, 2007
10:56 pm
5411
Under the simulation is a photo that shows the progress of the Dual Piston project. I still feel positive about it. http://fdp.nu/dualpistondevice/default.asp ...
Eric Vogels
eavogels
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Apr 15, 2007
12:36 pm
5412
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the minatowheel group. File : /Magnet...
minatowheel@yahoogrou...
Send Email
Apr 19, 2007
6:04 pm
5413
Hi, In the files section I have posted a movie clip showing the Mag-Gen motor idea I am currently building. I am constructing another ring that I am holding....
Tom Ferko
magnetman12003
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Apr 19, 2007
6:17 pm
5414
Status: All levers and bearings are installed. I have the movement I want. Now I have to add a slider bearing to the shield. One slider bearing at the bottom...
Eric Vogels
eavogels
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Apr 25, 2007
8:27 am
5415
Hello. Does someone have experience with Carbon Fiber? I wonder if it is a material one can use as a hobbyist, or does it need very special equipment? My...
Eric Vogels
eavogels
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Apr 26, 2007
12:10 pm
5416
Eric Carbon fiber and graphite rods are excellent building material. I have used square graphite rod in many of my projects including my latest "Sotropa Motor"...
Peter
mrstropes57
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Apr 26, 2007
2:40 pm
Messages 5387 - 5416 of 6052   Oldest  |  < Older  |  Newer >  |  Newest
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