kaiyo
Member
Posts: 1,201
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Post by kaiyo on Aug 21, 2011 9:18:56 GMT
hi,
have a sword and i noticed a odd click noise a while ago, it was never used for cutting or anything elso, strange thing it only happend with the very first swing, it bugs me and i was able to remove the top mekugi, now the noise comes with every swing, the nakago is def moving (from mune to ha), its impossible to remove the second mekugi because its directly under one of the fold, and the wrap is very very tight (rock hard), any chance to fix this ?
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SanMarc
Senior Forumite
Posts: 3,193
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Post by SanMarc on Aug 21, 2011 14:39:08 GMT
Hopefully you put the other mekugi back in!! But you will probly have to inject some epoxy in to the tuska some how...
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Sam H
Member
Posts: 1,099
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Post by Sam H on Aug 21, 2011 19:06:23 GMT
If you don't ever intend to disassemble the sword again work your way to the second mekugi and pop it out. Then epoxy the whole thing together and put the mekugi back. Once the epoxy has fully set you won't ever have to worry about the clicking noise again. Otherwise you'll have to shim the hilt so it fits snugly around the tang then put the mekugi back in.
Btw I always hate it when manufacturers or mounters hide the mekugi under folds - makes it a semprini to get to them without risking damaging the wrap.
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Post by frankthebunny on Aug 21, 2011 21:10:59 GMT
when you are re-wrapping a production tsuka a few things are unfortunately unavoidable. when the end knots don't wind up on the correct sides you could cut down the kashira end of the tsuka core to make up for this(provided there is enough room to the end of the nakago), when the mekugi ana wind up getting covered, you could sacrifice the aesthetics of the ito maki to leave them open. the fact that you're using a different type of ito will most often result in a different final layout and most would prefer the maki to look good and be tight. it is rare to get everything perfect unless you are constructing it from the ground up and even then it is difficult.
the ito might be rock hard but I was able to move it enough to insert the mekugi when I remounted the tsuka as I don't do the ito maki while mounted. you can use the end of a chopstick to push the ito back enough to tap it out, I did it without much trouble.
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Post by frankthebunny on Aug 21, 2011 21:32:33 GMT
you could inject epoxy through the top mekugi ana making sure it seeps into the interior of the tsuka core for a permanent fix or you could take the tsuka off and shim with a piece of acid free paper, wood veneer, or a slice of bamboo veneer. always start with less material than you think you need and work your way up so you avoid stressing the core seams when placing the tsuka back on. if you don't plan on changing the tsuka out in the future I would suggest the epoxy method because it's the quickest and easiest fix.
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Post by grmnsplx on Aug 21, 2011 23:46:22 GMT
I've had this exact issue and you don't need to use epoxy or build a new tsuka if the tsukagata (the movement you are referring to) is slight.
I am sure you diagnosis is correct, but just in case, you should confirm that it is not the tsuba, seppa or fuchi that are moving. That's pretty common. Having done that, read on...
This just takes a little bit of experiment to get it right, but all you need is a bit of paper. Seriously. Cut a thin strip of paper which is just a bet thicker than the ha edge of your nakago - only a few millimeters, really. Place it along the ha side of the nakago pressing it over that edge. Holding it in place, slide it the nakago into tsuka and make sure it doesn't slip to one side. You should probably slide the paper in most of the way first and let the nakago catch it and force it in. Reassemble and test.
You can do the same thing on the mune side. You'll have to experiment with the length of the paper. For me I have two slices of paper - one on the mune and ha side - which are about 2/3rds the length of the nakago and sit on the upper part of the nakago. If I were you I would try that on each side and do both if you need to. It's possible that you need to sure up the nakago fit lower down, so you can try that too. Like I say, you'll have to experiment with it.
Let me reiterate that this will work provided that: 1. the tsuka is solid and well constructed, and 2. he movement is fairly small
I have this solution on one of my large heavy iaito and it has been going strong for almost a year. A few weeks ago I refit the tsuba to it and inspected the tsuka and whatnot. Everything is fine.
Also, you should fix this immediately. Movement in the tsuka is very bad for the tsuka. If you don't, the issue will get worse very quickly and then the tsuka will crack and/or snap. Obviously, you don't want that, so son't use it until you deal with the issue.
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Post by Onimusha on Aug 22, 2011 2:51:10 GMT
I've been thinking about using rifle bedding compound. Maybe packing some in and coating the nakago with release agent, packing the mekugi ana of the nakago with clay, and putting it all together. Maybe that would work. Anybody try this?
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kaiyo
Member
Posts: 1,201
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Post by kaiyo on Aug 22, 2011 6:46:21 GMT
i fixed it and man it was so easy... i only used a slightly bigger mekugi
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SanMarc
Senior Forumite
Posts: 3,193
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Post by SanMarc on Aug 23, 2011 4:59:28 GMT
Gute!!
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