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Post by alton on Jul 23, 2021 16:47:19 GMT
Hello Forum /Guys... I have a couple of 1095 swords that have a slight bend from "Bad Cuts" into Matts. I did see an Old Video by Jay, where he made a wood jig to "straighten" his blades. Just asking... Are there guys who buy and repair and re sell them? Or, are the swords "Trashed" and not worth the time? The Tsuka and other parts are still in nice looking condition. Any SBG guys that live on the island of Oahu, Hawaii interested? Thanks for viewing... Alton T.
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Post by randomnobody on Jul 23, 2021 17:27:25 GMT
How bad is the bend?
It can seen daunting to fix a set, but it's not that hard. Using a wooden jig is perhaps safer and more effective, but I've straightened bent swords over my leg a number of times.
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Post by treeslicer on Jul 23, 2021 19:04:28 GMT
How bad is the bend? It can seen daunting to fix a set, but it's not that hard. Using a wooden jig is perhaps safer and more effective, but I've straightened bent swords over my leg a number of times. Yup, me too, it's a common problem in the tameshigiri community (even with Nihonto), and addressed by several authors and many web posts.
There are basically 4 ways to do it.
1. The good, old-fashioned knee.
3. A wood lined vise (a carpenter's is best, IMHO) to apply pressure to a shallow bend.
4, The vise in #3, with the addition of 3 dowels to apply focused pressure, 2 on the side of the sword away from the bend, and on either side of it, and one on the opposite side, at the apex of the bend.
#3 and #4 work better by preheating the bend area to around 110-120 degrees Fahrenheit (43 to 50 Centigrade) using sunshine, a blow dryer, heated water, etc.,, and applying the pressure, then leaving it for a couple hours before you release it.
To be honest, there is a 5th, way I have used, which is to straighten a blade with hammer and anvil (with proper protection against dinging the blade), but this is best left to experts.
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Post by Sir Thorfinn on Jul 23, 2021 19:34:31 GMT
Yes, its do-able at home.
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Post by alton on Jul 23, 2021 22:05:50 GMT
Hello Guys... Thanks for replying.. Just added: I did do a Forum Search, but, only had post about bent swords as reviews. Sorry I did not see those. Two Blades that are bent. Tsuka for Blades. Lower is a Koshi sori.. Thanks for viewing.. Alton
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Post by randomnobody on Jul 23, 2021 22:08:41 GMT
Those look like easy fixes with the old-school, over-the-knee approach. At least, that's what I would do. One of the aforementioned contraptions would be safer, if you've never straightened a sharp sword by hand, but it can be done by hand.
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addertooth
Member
Working the tsuka on two bare blades from Ninja-Katana, slow progress
Posts: 458
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Post by addertooth on Jul 24, 2021 3:44:17 GMT
Do it the time honored way Stick the part after the bend between the ribs of your mortal enemy, then lever the blade in a direction opposite of the bend.
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Post by nebulatech on Jul 25, 2021 22:24:38 GMT
An alternative to "over the knee" is to sleeve both ends in pipes, where the two pipes almost meet at the bend. You would have to protect the cutting edge to avoid chipping...
I've straightened arrows, pipes, rods etc. this way, never a sword. I HAVE used the "over the knee" many times on low quality blades, stuff that wasn't properly tempered.
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Post by RufusScorpius on Jul 25, 2021 22:29:22 GMT
Over the knee or a vice and a 2x4. Easy peasy. If you do a lot of cutting, you are going to have a bend every now and then.
A word of caution: the sword can only bend and be straightened maybe 2 times and then it's too weak to take another bad cut and it will probably break at that time. So don't act like it's a safety net for bad technique.
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Post by RufusScorpius on Jul 25, 2021 22:32:30 GMT
Do it the time honored way Stick the part after the bend between the ribs of your mortal enemy, then lever the blade in a direction opposite of the bend. I like the way you think. 👍
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