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Blade Speed Comparison Sheet |
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ThePongProfessor
Forum Moderator Joined: 11/17/2014 Location: United States Status: Offline Points: 1528 |
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Mods - Can we please sticky this? I think it is an interesting compilation of data (I know there are ongoing discussions regarding the value and significance of frequency data but...).
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cftt-blades
Member Joined: 07/18/2018 Location: Olathe, KS Status: Offline Points: 49 |
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I think this is pretty accurate and consistent with the testing i've done. I've been making my own blades for about 6 months now. I have test results for 12 different blades i've made with widely varied compositions. Not sure how to best contribute that information to the spreadsheet as I don't really have "names" for the individual blade compositions, but it is quite interesting. I just built two carbon blades that had a fairly interesting and unique carbon as the 2nd ply right below the top ply of the blade, and they are both very "stiff" (and this shows with the high peak in the 1700-1725Hz range), and then I built a ZLC "innerforce" style blade with the ZLC right on top of a Kiri core, and it tested in the 1360Hz range, which would be expected with a more flexible blade without a stiff 2nd ply. I have found though that as you increase hardness, at some point you start losing speed as well. I have an all wood 5 ply blade that I made with Sapele as the top ply, which is a pretty hard and stiff wood (1410 Janka, 12.04Gpa elasticity) and it only measures 1010Hz. It also plays like an ALL+ blade so that makes sense. It has a great feel for close to the table blocking and hitting, but lacks some top end speed due to the harder outer ply.
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Chris
--- Custom Blade made by me Donic Bluestorm Z1 Donic Bluestorm Z2 |
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h0n1g
Silver Member Joined: 05/03/2005 Location: CA Status: Offline Points: 839 |
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updated
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h0n1g
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updated
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hleett
Silver Member Joined: 04/13/2018 Location: USA Status: Offline Points: 501 |
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My 77g Darker S90 measured 1722Hz with rubber on the other side. Does it make any difference? Does a heavier blade have a higher frequency? ie: fatt's 90g DS90 measured 2325Hz, while both of our blades are at 9mm thick.
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h0n1g
Silver Member Joined: 05/03/2005 Location: CA Status: Offline Points: 839 |
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yes, heavier blades always measure higher
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hleett
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But here's the dilemma: given 2 blade of the same hinoki material, same thickness and dimensions, but different weight, which means different dryness. The heavier blade is probably has more moisture than the lighter one, right? But then why does the heavier blade blade has a higher frequency with a higher moisture content? Shouldn't it be the other way around?
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h0n1g
Silver Member Joined: 05/03/2005 Location: CA Status: Offline Points: 839 |
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Collection has been updated. Thanks for all the submissions!
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fmarek
Silver Member Joined: 09/08/2018 Location: Sydney Status: Offline Points: 525 |
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Am I right thinking that different balls you guys used only affect amplitude of the vib rather than freq?
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729 Green Goblin 5, FH: 729 Battle II National H39, BH: Palio HK1997 Gold.
DHS Long 5, FH: 729 Battle II Gold H40, BH: Nittaku C1 |
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h0n1g
Silver Member Joined: 05/03/2005 Location: CA Status: Offline Points: 839 |
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Unless you use 38/40 celluloid balls, the difference should be irrelevant on the grand scheme of things
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Dream1700
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Using the same set-up: Stiga Infinity VPS V 77 g. 1351 peak Stiga Offensive Wood NCT 78 g. 1369 peak
Edited by Dream1700 - 10/01/2018 at 7:04pm |
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Force Pro Special 7ply
FH: Fastarc C-1 1.4 BH: Tenergy 80 1.7 |
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hleett
Silver Member Joined: 04/13/2018 Location: USA Status: Offline Points: 501 |
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Update: It makes a big difference if the blade is with one side rubber and no rubber at all. My naked DS90 frequency is 2131Hz: Here is my naked 9mm 91g Miyabi at 2110Hz: Edited by hleett - 10/02/2018 at 9:53pm |
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h0n1g
Silver Member Joined: 05/03/2005 Location: CA Status: Offline Points: 839 |
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sorry for the absence. Sheet has been updated
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igorponger
Premier Member Joined: 07/29/2006 Location: Everywhere Status: Offline Points: 3252 |
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TREASURE OF KNOWLEDGE
https://www.researchgate.net/publication/273531659_Vibro-acoustic_of_Table_Tennis_Rackets_Influence_of_the_Plywood_Design_Parameters_Experimental_and_Sensory_Analyses Vibro-acoustic of Table Tennis Rackets. Influence of the Plywood Design Parameters. Experimental and Sensory Analyses TREASURE OF KNOWLEDGE https://www.researchgate.net/figure/List-of-racket-blades-tested-main-acoustic-frequencies-players-classifications_tbl1_271637905 https://issuu.com/butterflynorthamerica/docs/2018_technology_catalog_web?embed_cta=read_more&embed_context=embed Be happy Edited by igorponger - 02/21/2019 at 2:18am |
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𝐖𝐞 𝐬𝐞𝐜𝐮𝐫𝐞 𝐟𝐚𝐢𝐫𝐧𝐞𝐬𝐬 𝐟𝐨𝐫 𝐲𝐨𝐮 𝐚𝐥𝐥 |
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cyber_613
Member Joined: 10/08/2017 Location: Earth Status: Offline Points: 33 |
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Yinhe ALC Blade 88gram
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Blade: ZhangJike T5000
FH: Andro Ransanter R42 - Max BH: Joola Maxxx P - 2.0 |
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haggisv
Forum Moderator Dark Knight Joined: 06/28/2005 Location: Australia Status: Offline Points: 5110 |
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The moisture in the blade will no doubt affect the weight, but big weight differences are likely due to different wood densities, not moisture. Wood is a natural product, so it's always going to variation in internal structure & density, which affects the weight and performance.
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igorponger
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ABORTED .... USELESS... Edited by igorponger - 02/22/2019 at 9:21am |
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igorponger
Premier Member Joined: 07/29/2006 Location: Everywhere Status: Offline Points: 3252 |
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Quite so .. Quite so ... Exactly ... BLADES and FIDDLES .. Actually, even if labeled with same brand/logo, there are no two blades playing alike. All table tennis plywoods would be taken from different parts of the woodlog, so the finished plywoods differ in density and different moisture index.. This is the elementary truth every woodworker is aware of. Wooden blades is much like wirtuozo fiddles. They all would play differently. https://link.springer.com/chapter/10.1007/978-3-319-32080-9_19 |
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h0n1g
Silver Member Joined: 05/03/2005 Location: CA Status: Offline Points: 839 |
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Updated 4/6/2019
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h0n1g
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updated 4/7/19 including first Butterfly Harimoto ALC blade, thanks to jpenmaster!
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mykonos96
Gold Member Joined: 07/19/2018 Location: Southam Status: Offline Points: 1949 |
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Where s the updated list?
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mykonos96
Gold Member Joined: 07/19/2018 Location: Southam Status: Offline Points: 1949 |
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Thank you!! Is the frequency related to speed and power? |
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h0n1g
Silver Member Joined: 05/03/2005 Location: CA Status: Offline Points: 839 |
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Edited by h0n1g - 04/10/2019 at 1:09am |
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h0n1g
Silver Member Joined: 05/03/2005 Location: CA Status: Offline Points: 839 |
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updated
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cyber_613
Member Joined: 10/08/2017 Location: Earth Status: Offline Points: 33 |
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Blade: ZhangJike T5000
FH: Andro Ransanter R42 - Max BH: Joola Maxxx P - 2.0 |
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hleett
Silver Member Joined: 04/13/2018 Location: USA Status: Offline Points: 501 |
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Viscaria L series 94g...1442Hz.
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fmarek
Silver Member Joined: 09/08/2018 Location: Sydney Status: Offline Points: 525 |
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Spreadsheet updated with two blades
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729 Green Goblin 5, FH: 729 Battle II National H39, BH: Palio HK1997 Gold.
DHS Long 5, FH: 729 Battle II Gold H40, BH: Nittaku C1 |
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NextLevel
Forum Moderator Joined: 12/15/2011 Location: Somewhere Good Status: Offline Points: 14844 |
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is the blade frequency chart still up?
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I like putting heavy topspin on the ball...
Cybershape Carbon FH/BH: H3P 41D. Lumberjack TT, not for lovers of beautiful strokes. No time to train... |
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agm2020shocker
Member Joined: 10/19/2019 Location: Kentucky Status: Offline Points: 22 |
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I was told some hosts default to both www and without www but others you have to manually set up I think. I don't about any of this. I never finished elementary school.
Edited by agm2020shocker - 10/20/2019 at 12:36am |
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fmarek
Silver Member Joined: 09/08/2018 Location: Sydney Status: Offline Points: 525 |
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www is thing of the past these days. Used to differentiate site content tailored for desktop browser from potential wap.host.com and alike.
Also it is sad that they are not switching from "http://ttbl.de" to HTTPS even though they have it running here: https://ttbl.de The correct and default must be https one. p.s. Not my business really
Edited by fmarek - 10/20/2019 at 2:44am |
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729 Green Goblin 5, FH: 729 Battle II National H39, BH: Palio HK1997 Gold.
DHS Long 5, FH: 729 Battle II Gold H40, BH: Nittaku C1 |
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