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random thought: pimples in sponge |
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stiltt
Assistant Admin Joined: 07/15/2007 Location: Location Status: Online Points: 1012 |
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Posted: 05/04/2020 at 6:27pm |
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The pimples of inverted rubbers are glued to the sponge. The glue is the only point of torsion at contact.
What if the pimples are slightly inserted in the sponge? Has that been asked before? in that imaginary technique, the sponge has many holes in which the pimples are glued. Now the glue actions from both the bottom of the pimples and part (or all) of their cylinder walls and it seems like the symbiosis between the sponge and the topsheet is much better integrated. From a sequence where the topsheet, glue and pimples do their thing on their own and just pass on the baby to the next, we get one event where the action of one sticks much more closely to what the other 2 do. Today's technique suddenly looks so primitive because all the new, uncharted territories. What kind of feature do you think this would add to such a rubber? -if too much elasticity can harm control and predictability (or not?) , could we maybe achieve more control here simply by having a more homogeneous system? wishful thinking? or obvious? -in conjunction with more tender/elastic rubber for the topsheet, could the fantasy technique allow softer sponge for the same spin and speed than today harder sponges, elevating the average quality of play of the whole intermediate segment for example? - ? Enough with the pimples directly glued on the sponge, that's a caveman show. If you want to keep milking us, you need to step it up now! Thank you all for diverting part of your R&D budget towards the future. |
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GeneralSpecific
Platinum Member Joined: 03/01/2010 Location: New York Status: Offline Points: 2810 |
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I love ideas out loud like this. I unfortunately have ZERO idea what kind of an effect it would have as I am the opposite of a math/physics person but I'm curious to know. Someone with a lot of patience and a lot of precision could get a topsheet and sponge, bore small individual holes into the sponge, fill it with glue one by one, and carefully align and place each pip of the topsheet individually into a hole. Then, using the same topsheet and sponge combination for a control, glue it together normally. Put the 2 rubbers on a blade and you have a pretty good test setup if you did it right.
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Blade - Xiom 36.5 ALX FL
Forehand - Xiom Omega V Asia 2.0mm Backhand - Victas Curl P5V with Der Materialspezialist Firestorm Soft/Outkill 1.8mm sponge |
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JohnnyChop
Gold Member Joined: 05/02/2010 Location: Toronto Status: Offline Points: 1159 |
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Would it be between the rubbers now and if you just glue a flat topsheet on a sponge? Does anyone know why the pimple is necessary?
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729 Battle 2 Yasaka Goibao 5 Nittaku Fastarc G1
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mykonos96
Gold Member Joined: 07/19/2018 Location: Southam Status: Offline Points: 1949 |
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to have catapult effect
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stiltt
Assistant Admin Joined: 07/15/2007 Location: Location Status: Online Points: 1012 |
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yes Mykonos points at the purpose of the pimples and isn’t that purpose enhanced when the bottom of the pips relies on so much more résistance from a (base circle + cylinder) of glue v. a mere base circle of it? I expect more energy to be used in a useful way n the catapult effect (better focus of the rebound, less waste).
Edited by stiltt - 05/04/2020 at 9:42pm |
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stiltt
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What is more stable: the Eiffel tower or the 432 condo building in NYC? Edited by stiltt - 05/04/2020 at 10:44pm |
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Giant dwarf
Member Joined: 03/24/2019 Location: Netherlands Status: Offline Points: 28 |
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so i am no where near a expert but i have a observation i made in the past,i had a sheet of 729 batte 2 where i riped the topsheet of bacause i was curious how the top sheet looked,i noticed at the places where the pips where glued to the sponge the where dent in the rubber,so maybe they are already kind of doing it ,please correct anything if i said something thats wrong
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GeneralSpecific
Platinum Member Joined: 03/01/2010 Location: New York Status: Offline Points: 2810 |
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Yes, there are slight dimples there that leave a type of honeycomb pattern. However, I think he means having actual holes in the sponge. Also, stiltt, is your idea to have the hole be deep enough to fit the entire pip so that the topsheet lays flat and snug against the sponge? Or do you mean for the pip to go part way into the sponge still leaving some room between the topsheet and sponge?
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Blade - Xiom 36.5 ALX FL
Forehand - Xiom Omega V Asia 2.0mm Backhand - Victas Curl P5V with Der Materialspezialist Firestorm Soft/Outkill 1.8mm sponge |
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stiltt
Assistant Admin Joined: 07/15/2007 Location: Location Status: Online Points: 1012 |
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I would think part way so we change a bit at a time. We still want the catapult effect so I doubt sinking the whole cylinders in the sponge would give good results.
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igorponger
Premier Member Joined: 07/29/2006 Location: Everywhere Status: Offline Points: 3252 |
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THE POCKMARKS.
Edited by igorponger - 05/05/2020 at 4:58pm |
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𝐖𝐞 𝐬𝐞𝐜𝐮𝐫𝐞 𝐟𝐚𝐢𝐫𝐧𝐞𝐬𝐬 𝐟𝐨𝐫 𝐲𝐨𝐮 𝐚𝐥𝐥 |
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Baal
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I personally get on well with rubbers with the shortest possible interior pops, like Nexy Karis or Stiga Mantra. After T05 it took a little getting used to.
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stiltt
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edit: never mind. the pimples ARE defined in the rules. Edited by stiltt - 05/05/2020 at 11:04pm |
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mykonos96
Gold Member Joined: 07/19/2018 Location: Southam Status: Offline Points: 1949 |
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the shorter the pip the lower the arc
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stiltt
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Tenergy 25, Karis, they offer so much control. That's why I ask about the pips dipped into the sponge, it could help getting that control AND keep the catapult. The level of engineering required to achieve a streamlined process might be too big an endeavor though but I doubt it would be declared illegal if there is a way to do it, it would be a flagrant impeachment of innovation. I bet the lobbying to make it legal would not be too hard for a big company but if it's a smaller shop coming with the technique?
Edited by stiltt - 05/08/2020 at 5:23pm |
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cole_ely
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I think in effect your pips would have less sponge. Because from the bottom of the pip to the wood, there would simply be less. That effect wouldn't be entire because you'd be pulling sponge from the sides as well, but I think generally speaking when you flatten out Pips or shorten them, the rubber plays flatter. For example 729 used to have their 2000 top sheet which was a stubby pip and their FX which was a really long pip. The 2,000 had a much better short game and pushed flatter and the FX gave more topspin
I suppose you could have a longer pip produced. Then I feel like it would just play normally. Edited by cole_ely - 05/12/2020 at 8:27am |
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igorponger
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Sure, not all people would enter competitions. You are free to supply any rubbers on market, weird freaky rubbers would do as well for recreational activities. /Be happy/ |
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yogi_bear
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putting holes in the sponge would need a new mold for the sponges and also an additional type. Of manufacturing since the pips would be placed on each hole. Problem is it would also add costs to manufacturing. It might increase durability but which manufacturer would want that? They will be selling less amount of such rubbers.
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stiltt
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Yes, the pips would be longer to accommodate whatever is inserted in the sponge if we have to compare characteristics with what is existing now. Then I assumed that the added resistance at the base of the pips will absorb energy in a more predictable way, giving additional control overall. It is just speculation of course but it feels like a stronger base -and maybe thinner pips?- will make the pips slingshot more. There is a lot of room to play with the length and thickness of the pips when we change how harder it is attached to the sponge and sure enough, pips glued inside the sponge adds a lot of resistance so now the pips can be thinner and slingshot like crazy and then we can can shorten them maybe? just thinking out loud...
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