What is this called and where do I buy one???

[rhgwynn]

I know I can make one with two magnets and a clamp. But I would like to eventually have one of these.

-Robert

[soundguruman]

[ATTACH=CONFIG]22098[/ATTACH]

I know I can make one with two magnets and a clamp. But I would like to eventually have one of these.

-Robert

That is a (appears to be) magnetize / demagnitizer tool. They come in all shapes / sizes. This one (pictured) is a specialized type, for a certain application.
Here is a cheap one from Sears: Craftsman Magnetizer, Magnet, and Demagnetizer - Tools - Hand Tools - Screwdrivers
(Primitive but does the same job)
However, there are many different shapes and sizes of this tool.
The one you have is made to have interchangeable magnets, gap sizes...
It is used to magnetize demagnetize tools, screwdrivers, pliers, and is popular among watchmakers and other crafts persons....

[David King]

Needless to say it's not powerful enough to charge alnico rods or bars to full capacity. You need some good sized neodymium magnets for that.

[rhgwynn]

Needless to say it's not powerful enough to charge alnico rods or bars to full capacity. You need some good sized neodymium magnets for that.

Why do you say that? Those neos are larger and stronger than the 1" magnets that most people use.... There is no reference for size but I am assuming that those mags are at least 2" in diameter.

-Rob

[big_teee]

Needless to say it's not powerful enough to charge alnico rods or bars to full capacity. You need some good sized neodymium magnets for that.

I see two things wrong with it.
1. it looks non adjustable.
2. Like DK said not big enough for Bar Magnets.
Long bar magnets are harder to get a consistent charge, than short rod magnets.
long neos in a vise is ideal for Humbucker bar magnets.
T

[David Schwab]

Just do this:





It's adjustable, and the metal vice completes the circuit.

I usually use two larger magnets on each side.

[soundguruman]

The Magnetic Raygun also works for recharging magnets, but it scares too many customers away.

[SpareRibs]

Hello David Schwab,
I want to build the magnet charger you have shown. I have all the parts could you just explain the orientation of the magnets or will it be the same no matter because the circuit is complete?
Thank You

[rhgwynn]

Hello David Schwab,
I want to build the magnet charger you have shown. I have all the parts could you just explain the orientation of the magnets or will it be the same no matter because the circuit is complete?
Thank You

Just figure out which side is north and south with a compass, and arrange them accordingly. One side of the clamp face north inwards and the same with south on the other side of the clamp.

-Rob

[David Schwab]

One side of the clamp face north inwards and the same with south on the other side of the clamp.

Yep. North facing in on one side, South on the other.

[David King]

Just be really careful with multiple neos. Wear gloves and eye protection. Be really methodical and don't let the magnets slam into each other as they have a bad habit of shattering explosively. They are nickel plated to look like metal but they are very brittle inside, more like fired ceramic. The shards are very sharp.

I've seen even small ones jump huge distances and the results are often not very pretty. A safer way to deal with them is to stick one on a thin piece of sheet metal and the stick that to the vise jaw. You can slide the sheet metal out afterwards.

[big_teee]

I had a bunch of bookmarks where to buy NEOs, after my last Laptop died, they are gone.
Where do you guys buy NEOs, I forgot, and lost the bookmarks?
T

[kayakerca]

I had a bunch of bookmarks where to buy NEOs, after my last Laptop died, they are gone.
Where do you guys buy NEOs, I forgot, and lost the bookmarks?
T

K&J Magnets

K&J Magnetics - Strong Neodymium Magnets, Rare Earth Magnets

[SpareRibs]

Magnet orientation

Hello,
Would it be possible to change the orientation on ceramic magnets from top being north, bottom
south to the sides being north and south like humbucker magnets using the neo magnet setup ?

[David Schwab]

Hello,
Would it be possible to change the orientation on ceramic magnets from top being north, bottom
south to the sides being north and south like humbucker magnets using the neo magnet setup ?

Not with neos. It's very hard to charge or recharge ceramic magnets.