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Post by Lancelot Chan on Jan 9, 2019 16:41:37 GMT
After conducting 3 tests, I've finally figured out the cutting performance difference between straight and curved swords. The straight sword is much weaker in the running forward cuts while the curved sword's curvature helped to preserve the slicing ability. The katana outperformed the DS in the running forward cuts in both left and right directions, despite being lighter and shorter. The straight sword DS outperformed the curved sword in standing cuts due to higher weight, and outperformed the curved sword in backing away cuts due to longer reach.
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pgandy
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Post by pgandy on Jan 9, 2019 18:29:52 GMT
Interesting
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Post by zabazagobo on Jan 9, 2019 20:30:41 GMT
Great video, as always. I'm surprised the straight sword outdid the curved sword in that challenge. The katana isn't too much of a surprise as those things were pretty effective cavalry weapons. I wonder if, given the katana being lighter weight, the heavier weight of the larger curved sword is what's causing difficulty? That the added mass contributes to the blade 'sagging' during a run so that the edge alignment is thrown off?
Now I have to give this a try sometime. Would be fun to see what that big ol' Hanwei bastard sword can do for something like this compared to a tiny widdle katana haha
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Post by Lancelot Chan on Jan 10, 2019 5:26:55 GMT
Great video, as always. I'm surprised the straight sword outdid the curved sword in that challenge. The katana isn't too much of a surprise as those things were pretty effective cavalry weapons. I wonder if, given the katana being lighter weight, the heavier weight of the larger curved sword is what's causing difficulty? That the added mass contributes to the blade 'sagging' during a run so that the edge alignment is thrown off? Now I have to give this a try sometime. Would be fun to see what that big ol' Hanwei bastard sword can do for something like this compared to a tiny widdle katana haha In forward charging the curved sword did better than straight sword. A heavier curved sword will have additional momentum in facing hard targets in a forward charge. In this video the DS is the straight sword. I have 2 more videos of previous failure to cut with a lighter straight sword (tengu). DS only capable to cut due to its high momentum to chop through the target. This is the video of the lighter straight sword Tengu. You can see it got stuck. It's still a lot heavier than a katana but you can see its effectiveness diminished tremendously in the forward charging motion.
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Post by zabazagobo on Jan 10, 2019 6:54:50 GMT
Very cool, thanks for sharing. Helps reinforce my preference for curved blades. So now I have to ask, how's that giant odachi fare with charge cuts?
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Post by Lancelot Chan on Jan 10, 2019 8:18:21 GMT
Very cool, thanks for sharing. Helps reinforce my preference for curved blades. So now I have to ask, how's that giant odachi fare with charge cuts? That one is not testable since it's not fast enough to cut such targets to begin with. I'll test again with the 2.0 version once it arrived. LOL
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Post by zabazagobo on Jan 10, 2019 9:15:40 GMT
Very cool, thanks for sharing. Helps reinforce my preference for curved blades. So now I have to ask, how's that giant odachi fare with charge cuts? That one is not testable since it's not fast enough to cut such targets to begin with. I'll test again with the 2.0 version once it arrived. LOL Yeah, maybe if it's attached to a speeding motorcycle or a rocket it'd work lol
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Post by Lancelot Chan on Jan 10, 2019 15:38:03 GMT
That one is not testable since it's not fast enough to cut such targets to begin with. I'll test again with the 2.0 version once it arrived. LOL Yeah, maybe if it's attached to a speeding motorcycle or a rocket it'd work lol Definitely!!! I need those!
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Post by elbrittania39 on Jan 15, 2019 4:21:33 GMT
Ooof, you're a braver man than I. I'm already cautious/paranoid dry handling or test cutting with my sharps. Running while doing the same would just up that.
As always, nice video.
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Post by Lancelot Chan on Jan 15, 2019 13:39:12 GMT
Ooof, you're a braver man than I. I'm already cautious/paranoid dry handling or test cutting with my sharps. Running while doing the same would just up that. As always, nice video. Thanks a lot. :D Well I practice a lot. :D
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Post by Lancelot Chan on Jan 29, 2019 10:04:35 GMT
In my previous charging forward test cut, I figured out that katana cut way better than the longer straight sword. I wondered if it was the curvature's problem. Later, I analyzed the test cut video frame by frame, and tried to simulate the situation if I was using a longer nodachi. Then I also observed the result of my students using a longer curved sword in the charging forward cuts. I found that while the curvature does help, it wasn't the primary factor. The primary factor was the length of the sword. The longer sword has more reach and allows the user to start the cut earlier. Added with the forward moving motion, the tip will hit the target in a way where there is no slicing but just chopping. Due to the shorter length of katana, I had to move in closer before I could start the cut, thus the sword hit at the target with a slicing angle.
After understanding the mechanism, I figured out that I could adjust the timing I start the cut and the way I cut with on a long straight sword, to add the slicing ability to it as if I was using the katana. This test was a big success.
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Post by Lancelot Chan on Feb 17, 2019 14:34:30 GMT
More practice on forward moving cuts, hitting 14 thin chopsticks cored / 22mm PVC pipe cored newspapers roll.
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pgandy
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Post by pgandy on Feb 17, 2019 18:41:53 GMT
Your sharp swords always amaze me. Looks like you have a new area operations.
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Post by Lancelot Chan on Feb 17, 2019 19:30:32 GMT
Your sharp swords always amaze me. Looks like you have a new area operations. Yeah, I have 4 places I can test cut now. Inside my unit, but I won't risk breaking my other stuff when the newspapers roll went flying, so I try not to cut inside my unit. Then I can cut at the elevator lobby as the video shown. Or I can cut at the car park below, or I can cut at the rooftop above. In the above video I didn't intend to cut the 22mm PVC. I missed on the second cut and hit the PVC core that I used to fix the roll on top of the white PVC. Still the edge came out alright without any damage. 3V is cool!
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