DEMAGNETIZE TOOLS with a GROWLER
Vložit
- čas přidán 24. 07. 2024
- Be sure and watch these related videos------
How to Make a Demagnetizer #181 tubalcain magnetize
studio.czcams.com/users/videop012...
TESTING ARMATURES with a GROWLER #761 tubalcain sun commutator
• TESTING ARMATURES with...
WHAT IS PARAMAGNATISM - GROWLER #763 tubalcain
• WHAT IS PARAMAGNATISM ...
TURNING A COMMUTATOR ON A GENERATOR ARMATURE tubalcain
• TURNING A COMMUTATOR O...
Please like, subscribe & ring the bell.
Watch my 1400 other shop videos! search ----- "tubalcain"
#starretttools#brown&sharpe#mitutoyo#machineshop#machinist#bridgeportmill#verticalmillingmachine#mrpete#youtubeshopteacher - Věda a technologie
Excellent gabbing, Mr Pete, I enjoy it. Didn't know the soldering iron trick so thanks for that.
Another topic we take for granted. Well taught from a great teacher. Thanks for your dedication.
Thanks
As ever a great video and full of useful information, I even learned nickel is magnetic, I did not know that. I look forward to the next installment.
👍
Always love your stories.
We had a great old burger joint here in Huntington, NY. The Hamburger Choo-Choo. Your food was delivered to the counter by an electric train. Well, it caught fire one early Sunday morning. Biggest fire ever in town. The roof collapsed and prevented the firemen from getting water under the intact roof structure. Took 4 hours to put it out. The hot spots under the roof reignited for 4 days. It was the 60 feet of grease.😉
lol
When I was still working I had several young men and women who were just getting into the maintenance field. The thing that shocked me was their lack of knowledge about electromagnetism. That was something that in my day was taught to every 5th grader
And it just keeps getting worse. Young men just don't want to learn trades anymore. They just know how to play video games. Fortunately more young women are getting into trades. There's still not enough though.
Yup.
It amazes me that almost every single time I've been stuck for a magnet and had to wrap a wire around a screwdriver there's always at least one person who is amazed by it.
I am shocked at the ignorance of most young people on all subjects
I never get tired of you gabbing, even at 62 , I still enjoy old stories, especially mechanical / technical. I have enjoyed these subjects since I was old enough for a wagon and tricycle
Thanks
Always love your short stories..thanks Mr pete
Morning sir! Have to wait for break to watch all of this!
I've got an assortment of magnets; I've salvaged from all sorts of things. Hard drives, electric toothbrush heads, speakers.... I just tore apart a big $300 speaker, large ferrite magnets! Most magnets seem to be quite brittle. A stack of washer like magnets on a dowel makes a nifty spring.
The only school not closed because of snow, thanks for showing up…
lol
Yes, I watched all the way to the end and enjoyed all of it. I remember the little Scotty dogs, they were the prize that we hoped to get from the vending machine at the movie theater.
I didn't know about the soldering trick. Keep the mystery tools alive!!! I love them.
😀
whoa this is awesome, i was wondering about a way to demagnetize my pin gauges and that growler looks perfect!
Great video Mr Pete! Thanks for your time and sharing! 👍😎
Yes have always been interested in magnets to thanks for sharing Mr Pete 👍
You are a national treasure Mr Pete. Thank you for all you do
Thank you kindly
Magnitism is fascinating.
Although my statistical thermodynamics course which got down to the quantum level on that topic still gives me PTSD of a sort from that exam.
You just keep teaching teach with every video I watch I learn more and more ! Thank you !
😀
This was a fascinating experience and very cool to see so many different ways to use magnetism. Also thank you for sharing your story, I can't wait until the next part!!
Thanks
Another awesome video! Thanks for all of the knowledge that you share-
I love when you tell stories or go off on a tangent! Please keep it up!
😀😀😀
Great video Mr. Pete, every woman needs to watch this cause they don't understand magnetism at all.
Yes
Great video Mr. Pete. We had a bunch of DeGaussers we used in the machine shop at Pitney Bowes in Stamford Ct. I worked there for 31 1/2 years until they closed down much of mfg through outsourcing. We also used a Gauss meter for specific measurement applications. Loved seeing the transformational curve diagram. We used it in metallurgic class where we did case hardening, end quenching, and heat treating for our samples we polished and put underneath the microscope to examine the grain structure. Our Prof got all excited because out sample had martensite in our samples. Almost 50 years ago but I remember it like it was yesterday. I also remember being fascinated with the little kids game where you moved metal chips around the bald man’s face to give him hair and a beard. Looking forward to the next video.
Best Regards,
John
👍👍👍
Very interesting video. Will have to try that soldering iron trick. Of to watch video 181 thanks for the link Mr Pete
Fantastic video Mr. Pete. Very informative and really fun! Magnetism is one of those really interesting and mesmerizing forces of nature. Thanks for sharing and take care!!
Goodmorning Mr Pete! ,great class. My full time job is in Aviation Maintenance and we are always demagnatizing something. Thanks for sharing.
👍👍
Excellent video sir. And I didn’t know the soldering iron trick. Thank you for posting.
Very interesting as usual. Keep them coming..
I don't think you have made any video that's boring.
Thank you.
PS I live in New Zealand so you have a world wide audience!
Thanks
Magnetism is so critical to our lives; we can play with it's properties, make them, put it to work and do whatever we want, but we don't really understand why it works! When I was young, my dad gave me a magnet to play with saying not to get it near the TV (CRT of course). He went to take a nap and obviously I used it to put a great big spot on the screen. I was terrified. He was mad but went out to the shop and got a degaussing wand for TV repair and magically fixed it.
Good information , I found out something about my soldering gun that I didn't know.Thanks. Great video.
Great action Mr Pete I enjoy the stories.
Thanks Mr Pete , now I know exactly what to the growler I’ve had for ages that seemed to good to throw away. It’s got no meter or switch just the vee block and a power lead.
Great video! We can listen as long as you can talk, Mr. Pete!
Thanks
I enjoyed the scientific/ educational nature of this video.
Thanks
Like that little Wiha de/magnetizer, I have a control screwdriver made by them that is a favorite. Great quality from Germany, hardened tip with proper grip. I really like all your videos ones like this that are more scientific, or auctions with Plunder, restoration videos, machining, or casting videos, it doesn't matter what kind, it matters that Tubalcain is doing the video. You make any subject interesting, educational and entertaining. Always top notch. Appreciate the hard work you put into all these 1000's of videos, it surely is a labor of love for you and it shows. Thank you.
👍👍👍
Born in the 40s, I had a set of those black & white magnetic scotties, stored in a matchbox, as I recall; played with them for hours. My folks eventually gave them away. Hope another kid got to enjoy them.
👍👍
Lyle - Good video this morning. I have to kid you - Mr Pete 222 should have released this yesterday on 2/2/22. LOL My granddaughter did her science fair project on magnetism 4 years ago in 2d grade. We had a good time learning about things. She used the 'poor mans' method to demonstrate with a screwdriver. We built 'sleds' to show attraction and repulsion. She had fun doing it and got an award for it.
Another demag tip: when welding on some equipment it is found the piece is magnetized and the arc is wandering off every direction. Cure by wrapping the torch lead around the work, setting the welder to a high amperage AC setting and run several beads on a blank piece of steel.
👍👍
Lyle, your Dad and mine sound alot alike. On our way to Michigan in the summers he always insisted we stop at "those" restaurants (ie the greasy spoons of the day), in Illinois. Usually before we got on the Peotone road, The experiences there are very similar, and I think he really liked the food. He has been dead for almost 40 years now but your story made it seem like yesterday. Once again thank you.
👍👍😀😀
Good morning Mr. Pete, just magentizing subject. LOL
Very interesting Mr. Pete. I want my screwdrivers magnetic in my woodworking shop, my Dad, on the other hand hated magnetic screwdrivers. He was a radio and TV repairman and the magnetic tips would make it impossible to get the circuits tuned and aligned. Yes I stuck with the entire video, better entertainment that watching politicians on the tube!
Yes
nice. I use a library book security strip demag for my tools, works great.
Thank you for sharing. Enjoyed.👍👀
Great video! My brother and I, too, fought over the Scottie dogs in the early nineteen fifties.
lol
Great video Mr pete
Very interesting, thank you for sharing.
Great job!
We had a large spot welder at the school shop and the kids worked out that holding their watches close to the copper electrodes would wind the watch mechanismin reverse, very quickly. My tutor at college taught me that the temperature at which iron loses its magnetism was called the "point of recalescence". I don't know why I still remember that! 😄
👍👍
Thanks for sharing 👍
Thank you..... fun topic
Fantastic thanks!
Fascinating! I'm going to try my Weller soldering gun on the screwdrivers and a few files.
I really dislike magnetized tools!
I need a bigger loop on the Weller for the whole vise! Magneto's bled off some magnetism that I had in the vise for tune-ups.
I'm looking forward to the next video about paramagnetic metals.
Great topic Mr.Pete. The paramagnetic should make for a very interesting video, looking forward to seeing it. I don't know why you always say can you take a story I absolutely love listening to your stories.
Thank you, but you are certainly in the minority
@@mrpete222 Maybe some of the younger viewers might not be interested in your stories. I do think that a large percentage of your long time viewers enjoy them.
We used to do this at Ross Electric in Ottawa.
I use my L&R on my HSS when it becomes magnetized to keep the chips from staying on them. Also on my lathe chuck wrench and drill bits when they get magnetized as well.
Thanks again.
We have one of the Ideal demagnitizers at work.
Good morning Lyle,
Thanks for another great teaching video. A little advice for your many fans who use credit cards. Keep them well away from magnetic sources or they’ll become demagnetized and won’t work. I don’t know how or when it happened but the card stopped working in those little readers and I had to order a new one. The numbers still worked if typed in but I could not “swipe” or use self-checkout.
Most modern credit cards use a inbuilt "security chip" plus NFC coil & Chip to eliminate the problem of degradation of the magnetic strips.
Here in Australia there are very few if any swipe cards use - I don't remember the last time I saw a magnetic card reader used in retail stores, banks, etc.
@@johncoops6897 Greetings from America. My chip suddenly stopped working and I assumed the strip was demagnetized. Whatever it was the new card cured the problem.
@@ellieprice363 - The Chip and the Strip are 2 completely different things. The chips do fail after a while, but I am not sure if that's just from the card flexing and snapping something inside, or what?
I have a gizmo I bought at an electronics swap-fest. It was made for erasing magnetic tape. I discovered it also works as a demagnetize.
👍
I started using the de-mag function on my surface grinder chuck when I got it going ... before that, sometimes rapping the tool on something, or giving it a good thump with a stout hammer would reduce or get rid of magnetism, but it didn't always work, and it's not appropriate for all situations. For example: your best set of dial calipers!
If you get material from a scrap yard, it may have become magnetic from the crane they used to handle it ... so knowing how to remove the magnetism is worth learning. In my experience, that material will "pass it on" if you don't take care of it. HSS tool bits and metrology tools, mainly.
So sorry that I won't be able to meet you at the Flywheelers this week. I normally go on Saturday but was scheduled to go somewhere else an wound up going on Wednesday. Hope you get to come down next year.
😂
Scottie Dogs! I remember those.
Alnico magnets made of aluminum nickel cobalt and of course iron are in electric guitar pickups, microphones, loud speakers. Still amazed at the properties of a magnet and what can be done with them.
INTERESTING + the kelvin chart for
metal
I find this stuff interesting. In the UK, my grandfather was a civilian electrician but he was mobilised by the admiralty during WW2 to fit degaussing equipment in the RN fleet. (I believe degaussing is doing the work of your growler but on wee bit bigger toys heh heh.
Nice vid! You should get some neodymium magnets and a graphite block. If you're careful you can levitate a small magnet over the diamagnetic graphite. You can also get "flux detecting film" that changes color when subjected to a magnetic field.
I do have a slab of graphite. I will try that
Mister, you make CZcams a better place.
😀😀😀
Awesome
I have all ways loved magnets I I was probably 7-8 and remember when mum got me a magnet science kit was lots of fun
Fun fact everything is magnetic if you have one big enough
Another Andrew Camerata fan. He sure can do things with. heavy machinery.
Absolutely love that guy
My first job was working for an electrician, whose business ran from his father's TV repair shop, and he - the father - used to use a gegaussing coil to demagnetize the shadow mask on the old cathode ray tube screens. They used to get magnetised by the earths magnetic field over time and ever so gradually the picture colour deteriorated.
I remember that well
When I worked at Radioshack we had a guy that would come in and use a demagnetizer we sold on his head. I don't think it would go over too well today. I think he was missing a few screws.
Yes
i find engineering science fascinating
Yea
Hi Lyle,
Speaking of paramagnetic forces try to find an old auto speedometer. The needle is operated by having a magnet spin inside an aluminum cup. No mechanical connection or magnetic attraction. Just the friction of the magnetic flux / field passing thru the aluminum. This is something that has always fascinated me and is proof of the invisible magnetic field around a magnet.
MrPete already did a video on that subject...
czcams.com/video/DssASTqXqK8/video.html
There is a magnetic repulsion happening there. The magnetic field induces eddy currents in the aluminium because it's conductive, which behaves as a 1 turn coil. The induced electric current in the aluminium creates it's own magnetic field inverse to the applied magnetic field which causes the angular force, in the example of speedo's.
It's clever. :)
They do the same thing when separating materials for recycling. A belt with magnets attached whizzes past a conveyor belt and any aluminium pieces are flicked out from among all the other trash.
@@jimmyb1451 - @Jimmy B - you misunderstand how a speedometer works. The aluminum cup is not the main thing involved in moving the needle.
@@johncoops6897 Being a mechanic of 30 years, it's not that I misunderstand how a speedometer works. Perhaps I have that particular example wrong. I shall have another look.
@@johncoops6897 ah, yes, it is absolutely the aluminium cup that moves the needle, as I thought. Feel free to offer your alternative explanation so I can point out where you're wrong.
I like!
Remember Mr Wizard I'll bet you do,thanks for the viceo🤗😎🤗😎
I do indeed
Are you packed and ready to head to FL? Have a great time, and will be watching. Hello to the other Creators from Bears Rod Shop.
In Valdosta
Every die shop that makes or repairs stamping dies has de-magnetizers to remove surface grinder magnetism out of the steels. Don't want them trying to hang on to the slugs!
Very true. We had a demagnetizer in the tool and die shop where I worked for many years. All the hardened and ground parts had to be demagnetized after final grinding.
Well that answers one question. Is it me with the only functioning growler in the western hemisphere? Nope, Mr. Pete has one as well….LOL.
Great demo Sir!
lol
Blab away. I'm here to learn. ⭐🙂👍
😀
Note: if you are going to use a motor for this and want to do it safely, use an isolation transformer.
Yes I liked your video... Stop Dying because all of us are and we don't want to hear about it... :-) ... Thanks for sharing ... Stay Safe and Well...
Many years ago (1958) my older brother brought home with him two large horseshoe magnets. He turns the poles in a way that they were difficult to put together, he told me if they touched he would give me $1.00, I'm still trying 62 years later.
An interesting demo in the science museum has a thin metal iron disc (wheel) mounted on its axle so that the edge of the wheel passes between the poles of a horseshoe magnet. There's a gas flame playing on the disc, just off to the side of the magnet. Because the iron on one side is heated above its Curie point and is therefore no longer magnetic, the magnet attracts the cooler part of the disc on the other side, causing the wheel to rotate. The iron has time to cool down while it rotates around to the 'cold' side of the magnet, so as long as the flame is lit, the wheel continues to spin. It's an example of a heat engine with only one moving part. Not very efficient though!
👍👍
I've always been interested in magnetism too. Remember as a boy winding a piece of wire around a nail and hooking the wire ends to a 9v battery to make an electric magnet?
Remember those horrible metal football field games with the players with magnetic feet that would shake all over the place when you turned the thing on and it growled at you while doing do? lol
Off to the next video in this series :)
My friend had one of those football games. It was about worthless. I remember that if it was not on a real level surface, all the players moved to the lowest spot, L O L.
If you are going to be sharing stories, I’d like to see a video series detailing the boat ride down to the Gulf
I finally found the pictures of that trip. There will be a video on that within the next six months, but I think no one will watch it, just like no one is watching this one
@@mrpete222 I will be watching it with great interest along with Best Friend Hank so you can count on there being at least 2 views. Seems like I remember you talking about it in some detail as part of another video in the past year or so. I have watched so many of your videos now, I couldnt start to figure out which one.
👍
👍👍👍
I’m trying to figure out what event “hell freezes over 2019”. Was it AC/DC, the Colts game, OR WHAT ???
Good morning Mr Pete John
Please show us how it works
Ha ha , thanks for the reminder about the Scotty dogs, I had a pair when I was a kid and had great fun with the butt sniffing dogs 😉
What about neodymium and the other rare earth magnetic metals.
What about them? I have videos on that
If you also count the electrical transformers in the average home, then there are far more than fifty electromagnetic devices in each home.
Yes
So why do speakers need magnets?
Mr. Pete is the metal smiths learning channel. Well....Keith Rucker and Brian Block are ok too lol.AL B.
Yes indeed, I was in the company of Keith yesterday
The link to #181 is not working.
Every time I see tubalcain scores, I think he's picked up a girlfriend 😁😁👍👍👍
When you're _magnetizing_ with any of these AC coils, you don't need to actually hold the switch on for very long. Because the coil is AC, the magnetic field it produces is alternating in polarity at 120HZ just as in the incoming AC is (yes, the frequency is 60Hz, but you get 2 polarity changes per AC cycle). When magnetizing, the longer you leave the screwdriver or whatever in the field does nothing - the residual magnetism is from the last state the coil was in just before you shut it off. If you pulse the coil just briefly, it should leave the same residual magnetism in the screwdriver as leaving the coil on for a few seconds. All the rest of the time the coil is on, the field is reversing polarity continually, so it's actually reversing the polarity of the residual magnetism in the screwdriver as well. The only thing that would lead to a stronger residual magnetism is if you precisely controlled where in the AC waveform you shut the current off - if you shut the current off right at the peak of the AC wave, you'd end up with the strongest residual magnetism. If you shut the current off just shortly after a zero crossing, you'd end up with a weaker residual magnetism.
The reason moving the screwdriver through the field DE-magnetizes the screwdriver is more to do with the decreasing field strength as you move away from the coil, as well as the changing polarity of the field. It's the combination of the alternating and dissipating field that leaves the domains in a random state, and thus overall the screwdriver is not magnetic anymore (or has no residual magnetism)
This is also the same way the Whia magnetizer / demagnetizer blocks work "by magic" without power - on the magnetizing side, it has a bunch of magnets aligned with the same polarity, so when you pass the screwdriver through, the whole screwdriver sees the same field all the way along, and the domains in the screwdriver line up with the magnetic field of the magnetizer. On the demagnitizing side, the magnets are arranged with alternating polarities, so as you pass the screwdriver through, the net effect is all the magnetic domains in the screwdriver are left in random states, hence no net magnetism in the screwdriver.
Thanks
You demagnetized the north pole of that magnet, but the south pole was still there. You invented the monopole magnet. I confer the Nobel Prize in Physics on you. Congratulations. Do you have anything to say to the audience? No? Okay, take your prize and get lost. Just kidding. Excellent video, as usual.