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Blades with even # of layers. |
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BigFatLoop 
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Joined: 05/06/2017 Location: Milky Way Status: Offline Points: 82 |
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 Topic: Blades with even # of layers.Posted: 07/18/2017 at 12:49pm |
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Are there any blades with 4/6/8/... layers? Or is that not good for warpage or performance?
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Chairman Meow
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Joined: 10/04/2016 Location: Hell, Michigan Status: Offline Points: 290 |
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Posted: 07/18/2017 at 12:54pm |
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The old DHS 016 (one of the original Chinese blades) has 6 plies, all basswood and of even thickness. It doesn't have any issues. However, the thin veneers in modern blades probably need a solid, thicker core to play well and not warp; something to anchor them together because they naturally flex and shift more easily due to how thin they are.
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-1 ply Cypress 11.5mm "The Castigator"
-H3 Prov. Blue Sponge 2.2mm 41 deg. -H3 Prov. Orange Sponge 2.1mm 37 deg |
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h0n1g
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Joined: 05/03/2005 Location: CA Status: Offline Points: 839 |
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Posted: 07/18/2017 at 12:57pm |
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Tibhar Samsonov Start has 4 plys
The problem with even plys is that you don't have a center ply hence a very different playing characteristic. A lot of the even ply blades are slow beginner blades. Edited by h0n1g - 07/18/2017 at 12:58pm |
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BigFatLoop
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Posted: 07/18/2017 at 1:29pm |
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Ok, I buy that. So, 2 layers of the same wood epoxied together (same grain orientation) wouldn't be a good core then? It might even be a stiffer core with the right epoxy and thus helping with warpage. But it sounds like it is that same layer of epoxy that could allow each half of the core to shift independently? I guess having a solid core is simpler and there is probably no performance advantage with a 2-layer core.
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Chairman Meow
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Posted: 07/18/2017 at 1:55pm |
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Yeah. To have an even-ply blade, you would need thick and stiff veneers. If they are not stiff enough, they could potentially flex and the blade would split in half. You'd need strong glue. There are potentially some performance benefits/drawbacks of even-ply blades because there is no core, so the vibrations would travel differently. If you ever get your hands on an old DHS 08 blade, you can compare it to an old 016. They both have the same wood, just different numbers of plies (7vs6). I have never played with an 08, but it probably plays differently from a 016 (the 032 has lauan and basswood plies, so it is more different).
To make a quality even-ply blade, the constraints for types of wood and veneer thicknesses you can use are pretty tight. Also, people would have to actually be interested in blades with that kind of wood and thick veneers, so the market is pretty small. That's probably why they are not made often anymore. Someone who actually makes blades would probably be better suited to elaborate on this.
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-1 ply Cypress 11.5mm "The Castigator"
-H3 Prov. Blue Sponge 2.2mm 41 deg. -H3 Prov. Orange Sponge 2.1mm 37 deg |
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AMonteiro
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Joined: 01/30/2007 Location: Brazil Status: Offline Points: 2042 |
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Posted: 07/18/2017 at 2:26pm |
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Tibhar Ronin 6 (6 allwood)
Tibhar Nimbus OFF (6 allwood) Tibhar IV-L and variants (4 allwood) Nittaku Goriki (6 allwood) |
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Dynaryz AGR /Yasaka Goiabao 5 / Dynaryz AGR
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mhnh007
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Joined: 11/17/2009 Status: Offline Points: 2800 |
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Posted: 07/18/2017 at 3:40pm |
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I guess it's not good for the glue, as the middle part of the plies flex the most.
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arg0
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Posted: 07/19/2017 at 6:43pm |
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The following blades have an even number of plies, according to TT11:
Edited by arg0 - 07/19/2017 at 6:51pm |
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Chairman Meow
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Posted: 07/19/2017 at 8:48pm |
I forgot about those. They are different than what I was talking about earlier.
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-1 ply Cypress 11.5mm "The Castigator"
-H3 Prov. Blue Sponge 2.2mm 41 deg. -H3 Prov. Orange Sponge 2.1mm 37 deg |
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Crowsfeather
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Posted: 07/20/2017 at 7:43am |
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Xiom Diva
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Chairman Meow wrote: