Viewer Concern: Magnetism, and How to Fix It (plus Bonus Video)
Тәжірибелік нұсқаулар және стиль
I recently made a video showing how this LED video light...
Ulanzi VL49 RGB Video Light (My Amazon Link) amzn.to/3UAnjTR
...can make you a better watchmaker!
"$20 Accessory Will Make You a Better Watchmaker" • $20 Accessory Will Mak...
The light works great illuminating jewels and parts from underneath, so you can examine them more thoroughly with a loop or under the microscope. The light also doubles as an on-camera light or task light.
Several viewers commented that the light has a built-in magnet, which may possibly magnetize watch parts.
Since the magnet is on the back, I felt it’s far enough away from the lighted side, and I didn't see any effect on larger parts like bridge plates. But there was a small amount of magnetism that could be seen on tiny parts, like screws.
So, if the magnet concerns you, the logical question is, “Can you remove it?”
Yes. This video shows you how.
Please check out my watchmaking tool & supply recommendations on my Amazon Associates storefront: www.amazon.com/shop/mikefyxdt
You’re invited! Visit the Watch with Mike website - www.watchwithmike.com/
00:00 Introduction
00:58 How to disassemble the LED video light
03:57 Removing the magnet
04:42 (Optional) Adding a spacer to replace the magnet
05:53 Reassembly & testing
08:05 Closing thoughts
08:22 BONUS - Mega-magnetism bulk demagnetization test
#watchrepair #watchmaking #watchwithmike
Пікірлер: 37
I need to get a light like that for inspecting jewels! Ive used my cheap blue demagnetizer a few times, works great. Awesome video!
@WatchWithMike
3 ай бұрын
I can't tell you how many times I've picked up that light lately. I really need to get a smaller demagnetizer - the one in the video is ridiculously strong! But there's nothing like having demagnetized tools & parts! 😁
Had to demagnetize my WISE Adamascus AD8 lately. It went fourty seconds too fast. No clue what magnetized it. Now it’s running three seconds plus again. So it can be said that a demagnetizer is pretty useful. 🕐⚙️🍸
@WatchWithMike
3 ай бұрын
All it takes is a drop or a knock to magnetize something. I used to purposely magnetize my big screwdrivers to hold on to screws for hard-to-reach areas, by hitting the shaft a few times with a hammer. That's all that's needed! So for a watch that's being worn, it could be anything. 😁
Thanks, MIke. I'll need to do mine now 😆
@WatchWithMike
3 ай бұрын
Once you know the magnet is there it's hard to forget it's there! 🤣
Nice! Thanks, Mike.
@WatchWithMike
2 ай бұрын
You're welcome Bruce!
Wow... Astute viewers indeed. I did not know that it had a magnet but I can see how it can be a problem... Hope you have a great day Mike!
@WatchWithMike
3 ай бұрын
I like the comments as much as I like making the videos! Always good stuff contained within. 😀
@johanvandersandt8904
3 ай бұрын
@@WatchWithMike I can imagine! Good people watching a great guy doing awesome things.
@WatchWithMike
3 ай бұрын
@@johanvandersandt8904 Too kind! 😊
Great info,Mike.Thank you.
@WatchWithMike
3 ай бұрын
You bet!
Thanks for another great video, Mike! It's really important to avoid any proximity of watch parts or tools to magnets. It's really funny, since I considered two options when buying a flashlight for the same purpose as you. And when I saw that there was a magnet inside, I just chose the one without it. One interesting point to share: I purchased a cheap watch that was running. When I put it on the timegrapher, it turned out to be running too fast (+85 to + 112 sec/day). I don't hesitate to demagnetize fully assembled watches (before or after servicing), though it seems reasonable to unwind the mainspring first. So, after demagnetizing ... it stopped running. The balance wheel pivots are intact. I wonder what the problem is. I haven't disassembled it yet but I suppose that the problem lies in the finest vibrations caused by the demagnetizer inside The gunk might have come loose and prevented the wheels from moving. It will be an interesting issue to shed light on and make a video about.
@WatchWithMike
3 ай бұрын
Really interesting what you are dealing with after demagnetizing. One thought why a watch could stop after demagnetizing is that something moved inside, like a metal chip getting in a gear tooth. Things definitely jump around if the demagnetizer is strong enough. (My audio/videotape demagnetizer is insanely overpowered for wristwatch work!) I'm curious what the reason is to let down the mainspring before demagnetizing?
@kirillslov
3 ай бұрын
@@WatchWithMike I haven't seen any special guidelines concerning letting down the mainspring, maybe I am too cautious :) I was doing it once with a removed case lid, holding the watch with the dial down and saw how the balance spring was vibrating. I need to say that my demagnetizer is meant specially for watches and smaller items, though it can also demagnetize smaller pliers or scissors quite effectively. In some Russian watches the balance spring is fixed with special glue in the collet, and it seems possible to me that this congealed substance may be affected by the vibration. Just caution, nothing more. My friend, who is a professional watchmaker (he has more than a forty-year experience), says that he has never demagnetized an assembled watch, only single parts.
@WatchWithMike
3 ай бұрын
@@kirillslov Kirill, interesting that Russian watches hold the hairspring with a 'congealed substance'! (A type of shellac, perhaps?) I have mostly demagnetized disassembled parts, but I've also experimented on a few assembled mechanical watches that were not running well, to see if I could see a difference on the timegrapher, which I did not. That might be a fun topic for a video, though!
@kirillslov
3 ай бұрын
@@WatchWithMikeI would call it "glue" or even "epoxy resin" for example, in Slava watches, which I am a great fan of. I am going to make a video today, using my microscope, on gluing the hairspring back into the stud. It is possible to use nail varnish or thermal glue in this case. I opted for the nail varnish. I will share the link here later.
@WatchWithMike
3 ай бұрын
@@kirillslov That's great, I look forward to seeing it!
Thanks Mike. I bought the light on your recommendation and its great. I will now modify it on your recommendation. Is there anything else you'd like me to do? LOL!
@WatchWithMike
3 ай бұрын
I promise that the next video will NOT be "Whoops, put your magnet back in!" 🤣
It's demagnetization of an LED light 😆😉
@WatchWithMike
3 ай бұрын
Indeed! I wonder what would have have happened if I ran the light across the demagnetizer? (I'm guessing a crackling sound and a wisp of blue smoke!)
I bought mine for AUD$29 free delivery.
@WatchWithMike
3 ай бұрын
That sounds about right considering exchange rate. Free delivery is ALWAYS worth it! 😁
Mike… you’re not wearing a watch…!!!! 🥸
@WatchWithMike
3 ай бұрын
Hey Tom, it comes and goes… Gotta let my wrist breathe from time to time, right? 😄
@mokumholland5640
3 ай бұрын
@@WatchWithMike No no NO….you, of all people need to wear at least one at all times when posting videos 😊
@WatchWithMike
3 ай бұрын
@@mokumholland5640 Omg, what if I told you I WAS wearing one, but you just can't see it? 🤣
@mokumholland5640
3 ай бұрын
@@WatchWithMike I need to see my optometrist…🥸
#1
@WatchWithMike
3 ай бұрын
Hi Al, I figured you'd get a kick out of this video since it's the first one I've done with screws that are closer in size to Mustang head gasket bolts! Well, OK, not quite that big but very large compared to the screws in watches. 😂
@coyotecarguy2076
3 ай бұрын
@@WatchWithMike i see you're still the magnet man!
@WatchWithMike
3 ай бұрын
@@coyotecarguy2076 magnets make me feel attractive!
@coyotecarguy2076
3 ай бұрын
@@WatchWithMike 👍👍