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Post by etiennehamel on May 11, 2011 21:22:24 GMT
i have my ronin katana that have serious chipped portions and i was wondering how do i fix it for it to be as sharp as before? do i just take a file or a sharpening stone for cooking knives or maybe i can do that with sand paper?
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Sam H
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Post by Sam H on May 12, 2011 0:10:48 GMT
File out the chips taking care to keep the profile of the blade even and symmetrical. Then finish off with varying coarseness of stones - starting from very coarse to a very fine stone.
Or you could try sending it to Tom K to sharpen... or maybe dadaochen would take on the challenge?
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Post by etiennehamel on May 12, 2011 4:10:01 GMT
i took the challenge with a cooking knife sharpening stone and sand paper but i kind of messed up with my thumb and fell k.o. never thought i would fall k.o. for that small thing :lol:
i could give the details but for now i don't see the point about this (sanding like crazy and cutting myself and i had leather gloves near me :lol: but thats not the details its more of a resume )
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Sam H
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Post by Sam H on May 12, 2011 13:38:58 GMT
I've heard its common to cut yourself while sharpening/polishing with sandpaper. I tend to stick with coarse stones when working on taking out small nicks and when there's an actual chip I use a file. Afterwards I use progressively finer and finer stones till I have the level of sharpness I desire then I finish off with a ceramic rod for fine honing.
Sandpaper though - hmm well I'd say just be VERY careful. That though should be a standard when working with a sharp instrument.
Anyway so you passed out when you cut yourself? Its nothing to worry about really. I know a bunch of guys who have done that. One of my old karate classmates had never been cut before and he cut himself on my pocket knife as he was scoring an orange to peel it. He saw the drop of blood on the orange, looked at his finger and passed out. It happens so don't worry too much about it.
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TomK
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Post by TomK on May 15, 2011 15:38:24 GMT
it is very easy to cut yourself in this sort of work I've done it plenty. if you are going to pass out when it happens please make sure that your blade is secured in such a way that if you do KO yourself you won't fall on it. my recommendation would be to clamp it flat-down on a table edge.
as for fixing your chips it depends on how bad they are. if they are really small you can just sharpen it as normal but if they are bigger you will need to get a file or a coarse stone and hold that file or stone perpendicular to the cutting edge (make your edge vertical and make a T with it and the stone) and file/grind the edge down until it is well blended with the rest of the blade. this can mean a lot of filing in some cases since you need to bring the edge down to the lowest part of the chip. the trick here is you don't actually have to remove steel from your WHOLE edge to bring it ALL down to the same level, you just have to bring down the nearby areas so that the edge slopes gently to the bottom level of the chip. if you make this slope long enough it will become invisible. if you'd rather not remove that much steel from your sword all you really have to do is smooth out the chip so it is a gentle dip in your edge instead of an abrupt, well, chip. the reason is that a smooth curved line will take the stresses of use and distribute them along the blade while a jagged or abrupt dip or chip will concentrate the force in one spot and is vulnerable to cracking.
once you have your ship out then you have to sharpen it as normal.
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Post by etiennehamel on May 16, 2011 4:12:41 GMT
TomK here's the pictures of how the chips looked before i re polished the blade and cut myself with the sword (darn still feel dumb about this ^^' ) now the chips are far more smoother than it was (filed it, used a coare stone and used sand paper) but there is still some marks of the polishing but i don't mind at least now the sword cuts good
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Post by Lukas MG (chenessfan) on May 16, 2011 6:31:49 GMT
Take the whole front half/third down by about 2mm so that all the chips are gone. You don't want a saw, do you?
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TomK
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Post by TomK on May 16, 2011 7:17:05 GMT
yeah you should take it down until there are no more chips at all. the edge shoule be smooth
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Post by Lobster Hunter on May 16, 2011 8:56:35 GMT
Holy crap! What happened? Looks like you tackled a bunch of armored samurai with that thing. Is it a 1060 steel dojo pro?
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Sam H
Member
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Post by Sam H on May 16, 2011 16:49:08 GMT
Criminey! Dude your blade looks like you were chopping at concrete blocks!
I'd definitely file that all down till smooth then sharpen with stones/sandpaper.
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Post by etiennehamel on May 16, 2011 20:12:30 GMT
yes it is, and thats what happens when you're doing a full force assault on something and the sword decide to rebound on a cement brick hehehe i guess i overdid it a little :lol:
but don'T worry the scratches on the blade are from a sharpening stone it was worse than that before i did the first touch up with a file and the stone.
by the way am i the only one who used sand paper and saw that the ''ghost hamon'' was enhancing by sanding? it was noticable before but after i did some polishing the ghost hamon seemed to me even more noticable...
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Post by mikejapan on Aug 16, 2011 12:55:14 GMT
IF it has a real hamon. It should appear with proper polishing. I had a similar experience.
Michael
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Post by GUEST on Aug 16, 2011 14:31:24 GMT
If you going to take on bricks and cement get your self a war hammer. They are made to smash things. I would do alot more finish work to the blade.
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Post by mikejapan on Aug 16, 2011 16:56:21 GMT
^ LOTS FINISH WORK! hahah
Michael
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Post by etiennehamel on Aug 16, 2011 22:26:08 GMT
accidents happen at least it wasn't my favorite blade
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