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Kevin Ryan is a genius
http://w-ww.luthiersforum.com/forum/viewtopic.php?f=10102&t=6697
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Author:  Brock Poling [ Tue May 16, 2006 1:47 am ]
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I just never cease to be amazed by Kevin Ryan's ingenuity. Look at what he is using for spreaders in this picture. What a clever idea.


Author:  Michael Dale Payne [ Tue May 16, 2006 1:59 am ]
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Rare Earth magnets! cool MichaelP38853.458275463

Author:  Alain Desforges [ Tue May 16, 2006 2:08 am ]
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That is pretty cool. I didn't think those magnets could exsert so much pressure...

Author:  Michael Dale Payne [ Tue May 16, 2006 2:15 am ]
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Contrare they are very strong magnets for their mass. that is why they work so good on top crack repairsMichaelP38853.469375

Author:  LanceK [ Tue May 16, 2006 2:20 am ]
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That is very cool!

Author:  charliewood [ Tue May 16, 2006 2:32 am ]
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Ill say thats cool - strong little buggers,
Im also really impressed with the rare earth magnet remote control sander on FRETS, too cool -
a drill with a circular disk padded with a thin layer of felt spins on the outside of the guitar, while a series of rare earth magnets glued together into a larger surface backed with sandpaper,
spin remotely in a circular motion inside the guitar.
What cool ideas - I have a feeling we havent seen the end of rare earth magnet innovations yet!
Cheers
Charliewood

Author:  Dave White [ Tue May 16, 2006 2:34 am ]
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He obviously has Magneto as an apprentice

Clever and cool!!

Author:  Michael Dale Payne [ Tue May 16, 2006 2:35 am ]
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I had a thought. Imbed Rare earth magnets in to my assembly molds at strategic locations and use the same principle via my molds. Hmmmm Thanks Kevin. Oh yea and you to Brock

Author:  stan thomison [ Tue May 16, 2006 3:01 am ]
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Very cool idea. Nice bracing concept also

Author:  Pwoolson [ Tue May 16, 2006 3:05 am ]
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[QUOTE=Alain Desforges]   That is pretty cool. I didn't think those magnets could exsert so much pressure...[/QUOTE]
You have obviously never gotten you finger pinched between two of them when they make contact. Now that'll raise a blood blister might quick.
I think if I were doing that with magnets, I'd want some sort of caul spanning the whole height of the side. Seams like pulling on just one small area might want to distort it a bit.

Author:  Don Williams [ Tue May 16, 2006 3:25 am ]
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You're just figuring this out? His jigs and fixtures are what legends are made from...he's brilliant.

Author:  Michael Dale Payne [ Tue May 16, 2006 3:27 am ]
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[QUOTE=Pwoolson] [QUOTE=Alain Desforges]   That is pretty cool. I didn't think those magnets could exsert so much pressure...[/QUOTE]
You have obviously never gotten you finger pinched between two of them when they make contact. Now that'll raise a blood blister might quick.
I think if I were doing that with magnets, I'd want some sort of caul spanning the whole height of the side. Seams like pulling on just one small area might want to distort it a bit. [/QUOTE]

That is what I was thinking. Use the smaller ones. One high one low and one in the middle and caul plate with other small ones in itMichaelP38853.5339699074

Author:  Serge Poirier [ Tue May 16, 2006 3:50 am ]
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I bought me some at Lee Valley(sounds like i always shop there for some odd reasons ) last year and indeed they can become quite scary if not handled properly, if dropped near a metal source, run for cover!

Serge

Author:  Scott Thompson [ Tue May 16, 2006 4:01 am ]
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[QUOTE=MichaelP] [QUOTE=Pwoolson] [QUOTE=Alain Desforges]   That is pretty cool. I didn't think those magnets could exsert so much pressure...[/QUOTE]
You have obviously never gotten you finger pinched between two of them when they make contact. Now that'll raise a blood blister might quick.
I think if I were doing that with magnets, I'd want some sort of caul spanning the whole height of the side. Seams like pulling on just one small area might want to distort it a bit. [/QUOTE]

That is what I was thinking. Use the smaller ones. One high one low and one in the middle and caul plate with other small ones in it[/QUOTE]

Those look like two magnets stacked. A 1 inch magnet has is about 30 pounds, so that is a lot of clamping pressure. I'm wondering how he safely removes them without damaging the sides.

Author:  Serge Poirier [ Tue May 16, 2006 4:05 am ]
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You just slide them off carefully i'd just say. Same approach when you install them in, you have to start further away and gently slide them towards the clamping point.

Serge

Author:  Mattia Valente [ Tue May 16, 2006 4:14 am ]
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That's awesome!

Rare earch ones are frighteningly strong. One store I'm looking to buy some tiny ones for (to fix electric guitar cavity covers) has ones that are 1.25" in diameter, 1/8" thick, and can pull about 55lbs or so. Some of the larger square ones cost absurd money can pick up a good 250lbs or so. A few german webshops have them for about 2.50 each, might be an idea to embed some in my molds. Hmm....you really want to keep them far, far away from your credit cards, though.

Author:  Todd Rose [ Tue May 16, 2006 4:34 am ]
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Michael, I love your idea. But maybe a better idea is to just embed pieces of steel in the mold, and then use magnet-loaded cauls inside the guitar.

Author:  Michael Dale Payne [ Tue May 16, 2006 4:37 am ]
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i thought that too after posting

Author:  ATaylor [ Tue May 16, 2006 4:56 am ]
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I've been looking for an excuse to get some of those. I think this puts me over the top. Off to Lee Valley!

Author:  Jeff Doty [ Tue May 16, 2006 4:58 am ]
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Yep, pure genious. Wish I could come up with my own ideas, but until I do, I will just borrow everyone elses.

Jeff

Author:  Brock Poling [ Tue May 16, 2006 5:00 am ]
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[QUOTE=Don Williams] You're just figuring this out? His jigs and fixtures are what legends are made from...he's brilliant.
[/QUOTE]

No, not really, my head is still spinning contemplating all of the ideas that are in the ASIA journal article about his jigs and fixtures ... and then I saw this on the APM forum last night.


Author:  LanceK [ Tue May 16, 2006 5:06 am ]
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[QUOTE=Scott Thompson] I'm wondering how he safely removes them without damaging the sides.[/QUOTE]

My guess is that he releases the toggle clamps and pulls the bracing post away from the side and the magnet just falls off.


Author:  Philip Perdue [ Tue May 16, 2006 5:36 am ]
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What an interesting idea! I have access to a variety of sizes and now will have to see if I can incorporate any of the rare earth magnets into upcoming jigs. I currently make refrigerator magnets using small rare earth magnets. I have seen adults jump in surprise when a magnet jumps out of their hand and flies towards the refrigerator at blinding speed. And I always add a warning about getting the magnet near your credit cards.

Philip

Author:  Dave Anderson [ Tue May 16, 2006 5:42 am ]
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Yep, Ryans jigs and fixtures are always interesting. Innovative dude he is!

Author:  CarltonM [ Tue May 16, 2006 6:12 am ]
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[QUOTE=LanceK]My guess is that he releases the toggle clamps and pulls the bracing post away from the side and the magnet just falls off.[/QUOTE]
Maybe not, Lance. I think doing it that way would pull the side along with the bracing post. Might even crack the wood. Sliding the magnet away from what it's attracted to is probably the way to go.

Hey, if we could figure a way to hook these up to a computer, we could do home MRI's!

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