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What material might approximate TT rubber? |
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KHatfull 
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Joined: 11/29/2007 Location: United States Status: Offline Points: 107 |
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 Topic: What material might approximate TT rubber?Posted: 12/11/2007 at 3:38pm |
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Hi,
I saw the post about the return board and since I can't afford a robot just yet I thought I'd take a shot at building one. Is there anything anyone knows of besides TT rubber that approximates the properties of TT rubber for the purposes of building a return board? Any insight welcome. Thanks! |
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Jeff(ATTC)
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Joined: 09/22/2007 Location: United States Status: Offline Points: 1166 |
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Posted: 12/11/2007 at 4:02pm |
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cheap foam sheets from a hobby store and rubber sheets from the hardware store.
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Bty Jun Mizutani ZLC
FH: D80 BH: D05 |
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PingPangQiu
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Posted: 12/11/2007 at 4:42pm |
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just stick them to the wall?
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JimT
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Posted: 12/11/2007 at 5:12pm |
I don't think that's the right material - it has to be harder (bouncier) to guarantee a proper return. How about some thin plywood - my advice is to buy one big sheet, then cut it into several strips and see hwo many it will take you to nail together to provide good ball return when you hit them. After that you can build the proper board by getting that many plywood sheets of required size etc... Perhaps the first one should be covered by smth "rubberish" - but my thinking is that sealing it with several layers of varnish might be enough. |
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Single Ply Hinoki Club, Founding Member
Say "no!" to expensive table tennis equipment. Please... |
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PingPangQiu
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Posted: 12/11/2007 at 5:26pm |
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what material makes a ball bouncier besides wood and rubber?
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unisonus
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Posted: 12/11/2007 at 5:42pm |
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Pardon my ignoring the question but... What is the area of the board? Consider some cheap rubber like Dawei 2008XP for $5 a sheet.
It's a decent rubber too.
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Instinct 5ply
RITC 2000 1.8mm |
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KHatfull
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Posted: 12/11/2007 at 5:52pm |
No worries... I wanted to make it in two pieces, each 1/2 the width of the table. That way they could be set to different angles to produce a different angle of return depending on which one was hit. So full width of the table, maybe 12-24" (30-60cm)? That's a lot of rubber.  |
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PingPangQiu
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Posted: 12/11/2007 at 9:45pm |
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$5 a sheet is still to expensive considering its only the bat size, for a return board you need a sheet of rubber that is the table with and 1/4 of the table length
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unisonus
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Posted: 12/12/2007 at 1:00am |
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Perhaps a layer of gum rubber.
http://www.rubbercal.com/Pure_Gum.html This company sells many kinds of affordable rubber. http://www.rubbercal.com/Sheet_Rubber_Applications.html I would contact them. I am sure they'd be willing to help. Ask for something bouncy and sticky. |
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Instinct 5ply
RITC 2000 1.8mm |
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PingPangQiu
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Posted: 12/12/2007 at 1:03am |
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thanks
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KHatfull
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Posted: 12/12/2007 at 11:59am |
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I may have found something:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=220182969697 or http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=220181053069 Hmmm...thin hobby foam underneath? Interesting. |
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PingPangQiu
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Posted: 12/12/2007 at 12:41pm |
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i dont think foam will work well
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KHatfull
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Posted: 12/12/2007 at 3:56pm |
I wonder about the gum rubber by itself...it should be tacky enough to grab some spin off the ball? Heck, it's just about cheap enough to go ahead and try... |
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PingPangQiu
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Posted: 12/12/2007 at 4:06pm |
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as long as it has any some friction which all rubbers have, it is able to take spin
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unisonus
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Posted: 12/12/2007 at 8:54pm |
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Generally speaking, the softer material will take more spin and produce less rebound - harder material will produce more rebound but take less spin. It's hard to find the golden-mean without actively testing the alternatives. Make your best, educated guess.
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Instinct 5ply
RITC 2000 1.8mm |
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KHatfull
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Posted: 12/12/2007 at 10:08pm |
"It's hard to find the golden-mean"...isn't that true in everything But, point well taken. I'm going to go to the hardware store tomorrow and browse for hinges and other things...might aas well try this eBay gum rubber...who knows, might work just fine. Thanks. |
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Jeff[ATTC wrote: