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Post by Lancelot Chan on Aug 2, 2023 5:00:43 GMT
Take a look on what Lancelot-Sharp is, cutting through cut-resistant kevlar as if it's nothing, out-cutting Japanese knife.
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pgandy
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Post by pgandy on Aug 2, 2023 13:02:08 GMT
Do I detect a little bragging there? That’s a remarkable edge. 👍 I remember seeing your work pass through paper using only the weight of the sword with no slicing action.
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Post by Lancelot Chan on Aug 2, 2023 13:58:30 GMT
Do I detect a little bragging there? That’s a remarkable edge. 👍 I remember seeing your work pass through paper using only the weight of the sword with no slicing action. Yes, but this time it's basically bullet proof vest material that can't be cut without special tools (and as shown, even special tools had difficulties) :)
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pgandy
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Post by pgandy on Aug 2, 2023 14:35:54 GMT
I am not familiar with the material and saw that it was difficult to cut. That brought two thoughts to my mind. A gambeson and how resistant is the material to punctures? Also, so that you don’t misunderstand me again, while only partially serious about the bragging (no offense) I was mainly complimenting you on such an edge.
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Post by Lancelot Chan on Aug 2, 2023 14:47:07 GMT
I understand. This material is does not have any protective value against puncture at all. The very sharp tip will get through the weaving. That's why bullet proof vest without hard plate is not stabbing proof. Exactly why. However, it's pretty cut resistant for it was used to trap a bullet. I use this in RSW making, that's why I've some to show the sharpening result.
Gambeson is also not good in protecting against puncture / stabbing. In this sense, they're similar.
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pgandy
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Post by pgandy on Aug 2, 2023 16:05:04 GMT
I know gambesons aren’t all that resistant to thrusts. I can’t think of much that is except plate armour. I thought of gambesons first, then remembering the resistance, or rather the lack of, some materials while making a good showing against bullets offer not much protection against penetrations from blades. I remember in earlier days several cocky guys encouraged, to their sorrow, someone stab them while wearing their newly obtained bullet proof vest. My bullet proof, for a lack of a better word, military jacket had metal plates making me feel somewhat better. I just hoped that I wouldn’t receive a direct bullet.
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Post by Lancelot Chan on Aug 2, 2023 16:13:51 GMT
I also remember those accidents where ppl thought those bullet proof vest was also stabbing proof and ended up fatal. Only hard plate protected vest can protect against stabbing.
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Post by mrstabby on Aug 2, 2023 18:44:24 GMT
What do you find better on swords for cutting, a toothy or a mirror polished edge? I haven't had good luck with toothy edges, though some people swear by it. Two cheap things that work well for edge testing are thin, glossy magazine paper and paper tissues. A dull blade rips tissues, a sharp one cuts cleanly and with the glossy paper you can feel every imperfection in the edge. First cut is a fresh utility knife, second a "factory sharp" knife, third cut is sharpened knife
To be honest, my swords aren't as sharp as the knives, too much work since a hair whittling edge won't survive the first cut anyways.
Hair works reasonably well, if you have enough, but the glossy paper can really show the smallest defects. I'd love to test my edges on a Bess sharpness tester, but I ain't gonna shell out 300$ for using it a few times.
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Post by Lancelot Chan on Aug 3, 2023 6:22:14 GMT
What do you find better on swords for cutting, a toothy or a mirror polished edge? I haven't had good luck with toothy edges, though some people swear by it. Two cheap things that work well for edge testing are thin, glossy magazine paper and paper tissues. A dull blade rips tissues, a sharp one cuts cleanly and with the glossy paper you can feel every imperfection in the edge. First cut is a fresh utility knife, second a "factory sharp" knife, third cut is sharpened knife
To be honest, my swords aren't as sharp as the knives, too much work since a hair whittling edge won't survive the first cut anyways.
Hair works reasonably well, if you have enough, but the glossy paper can really show the smallest defects. I'd love to test my edges on a Bess sharpness tester, but I ain't gonna shell out 300$ for using it a few times.
You've to first define what's toothy. Different ppl have different standard.
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Post by mrstabby on Aug 3, 2023 17:54:18 GMT
You've to first define what's toothy. Different ppl have different standard. 400-600grit toothy (120x)
3000+grit polished (120x)
Both pictures were done quickly with an old utility knife and are just something to show.
I know, the serrations help the blade to grab onto and rip into the target, but the polished edge cuts feel more satisfying to me.
As for edge retention, I personally don't know. The serrations might make an edge feel sharper for longer, from what I have read it depends on the steel what fares better in the end.
But since I like the cuts of a polished edge better and am better at keeping a polished edge sharp, I stay with it for now.
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Post by Lancelot Chan on Aug 3, 2023 18:43:52 GMT
I have two setups for my finishing grit, depending whether the edge would meet something hard or only soft targets.
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Post by mrstabby on Aug 3, 2023 19:17:32 GMT
Isn't for edge durability (or target hardness) the edge angle more important than the finish on it? Or are hard targets easier to cut with either toothy or polished edges?
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Post by blairbob on Aug 18, 2023 22:59:24 GMT
impressive
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Post by Lancelot Chan on Aug 19, 2023 5:57:59 GMT
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