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Post by Deleted on Nov 2, 2009 0:24:26 GMT
I posted the other day about having an old tsuba that I wanted to put on my Cheness O-Kat...........well, with a little filing of the tsuba, it worked out perfect. The only problem is that when I put my sword back together, the tsuka creaks quite a bit at the very bottom. It all fits together just a tightly as the factory had it and it all feels perfect but it makes creaking noises like crazy at the bottom of the tsuka every time I even grab onto it.
I thought about maybe taking it apart again and putting some cloth around the tang or something but I wanted to see if this was a common problem or not. Its a tight as can be, but I can even just grab the bottom of the handle and if I just wiggle it back and forth a little it creaks. This is very annoying, especially when I swing the sword, its all I hear. What is causing this..........any ideas?
Thanks again.
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Post by Deleted on Nov 2, 2009 1:29:25 GMT
Poorly routed and possibly split tsuka core, maybe.
Take the tsuka back off and check it for cracks. Don't just look at it, either. Gently press your finger into the ana to see if any cracks are being hidden by the squeeze of the ito. if there are no cracks, take the tsuka core and hit the opening on your knee for a little while. See if a shim dislodges. If the shim is smashed in weird, then it would compromise the way the nakago fits into the tsuka which could then create the gaps necessary for creakage.
If it's cracked, then it's unsafe to use.
If the shim is misplaced, then it's still not completely safe, but it's better than a crack.
I like properly fit tsuka, myself. ^_^
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Post by Deleted on Nov 2, 2009 1:43:00 GMT
sounds like something is causing stress on the tsuka, it isn't safe to use until you get the issue sorted out, understress tsuka can literally explode on you. Did you have the creakiness before you reassembled the blade and made the changes?
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Post by Deleted on Nov 2, 2009 2:27:51 GMT
Both of my Cheness swords had this problem. Niether of them were cracked, but they still squeaked. It is caused by a poorly fit tsuka.
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Post by Deleted on Nov 2, 2009 9:59:51 GMT
sounds like something is causing stress on the tsuka, it isn't safe to use until you get the issue sorted out, understress tsuka can literally explode on you. Did you have the creakiness before you reassembled the blade and made the changes? Thats what i dont understand........it was fine before I disassembled it, 3 minutes later, its noisy. I checked for cracks and everything seems as tight as can be and no cracking at all. I did oil the tang and wiped it back down before I re-installed it, thats the only thing that is different.
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Post by sicheah on Nov 2, 2009 11:23:43 GMT
Thats what i dont understand........it was fine before I disassembled it, 3 minutes later, its noisy. I checked for cracks and everything seems as tight as can be and no cracking at all. I did oil the tang and wiped it back down before I re-installed it, thats the only thing that is different. You should never oil the tang, the oil might have some effect on the wood of the tsuka and might cause the tsuka to creak. The tang should be allowed to rust/patina naturally.
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Post by Deleted on Nov 2, 2009 12:14:59 GMT
Yeah oiling the tang is always a bad move even if you wiped it down. the tang is supposed to be unoiled, I wonder if as Sicheah said that the oil might have caused some sort of structural weakness, do you know what the wood of the tsuka is made from?
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Post by Deleted on Nov 2, 2009 12:28:56 GMT
Had this problem on a couple of swords. The creaking is probably the nagako ana rubbing the bottom menuki. The tsuka isn't tight enough sideways. Could be less than a mm too roomy. First try Hyoinsamas approach. If there are no shims or cracks try first to put a couple of rounds of electricians tape around the bottom of the nagako up to the bottom nagako ana to test if it tightens up. If it does you can make a shim. Or simply leave the eltape on.
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