Alex Table Tennis - MyTableTennis.NET Homepage
  New Posts New Posts RSS Feed - I turned to the polyball. The Yinhe seamless one.
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

I turned to the polyball. The Yinhe seamless one.
 Post Reply Post Reply Page  <12
Author
  Topic Search Topic Search  Topic Options Topic Options
wturber View Drop Down
Premier Member
Premier Member
Avatar

Joined: 10/28/2008
Location: United States
Status: Offline
Points: 3899 		Post Options Post Options   Thanks (0) Thanks(0)   Quote wturber Quote  Post ReplyReply Direct Link To This Post Posted: 01/14/2015 at 4:42pm
Originally posted by Baal Baal wrote:

I find it hard to believe the Yinhe person about that, except for the possiblilty that they have different quality control criteria.  As for a third generation of the ball, I am curious about when that started, since the balls I have gotten from april of 2014 are virtually indestructible unless they hit a sharp edge very hard.

One difference could be internal pressure.  Remember that one of the original features of the seamless was that it could be pressurized up to (as I recall) three atmospheres.
Jay Turberville
www.jayandwanda.com
Hardbat: Nittaku Resist w/ Dr. Evil or Friendship 802-40 OX
Back to Top
Sponsored Links


Back to Top
Baal View Drop Down
Forum Moderator
Forum Moderator


Joined: 01/21/2010
Location: unknown
Status: Offline
Points: 14336 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Baal Quote  Post ReplyReply Direct Link To This Post Posted: 01/14/2015 at 5:31pm
I suppose it could be, but it's nothing I can discern playing with them, XSF, Yinhe, both very good.
Back to Top
NextLevel View Drop Down
Forum Moderator
Forum Moderator
Avatar

Joined: 12/15/2011
Location: Somewhere Good
Status: Offline
Points: 14844 		Post Options Post Options   Thanks (0) Thanks(0)   Quote NextLevel Quote  Post ReplyReply Direct Link To This Post Posted: 01/14/2015 at 5:51pm
The price of the training/club ball has gone up as well on megaspin.

That said, I am stocked up on XSF balls for the year and it is going to be my primary training ball.
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...
Back to Top
roundrobin View Drop Down
Premier Member
Premier Member
Avatar

Joined: 10/02/2008
Location: United States
Status: Offline
Points: 4708 		Post Options Post Options   Thanks (0) Thanks(0)   Quote roundrobin Quote  Post ReplyReply Direct Link To This Post Posted: 01/14/2015 at 6:17pm
Originally posted by wturber wturber wrote:

One difference could be internal pressure.  Remember that one of the original features of the seamless was that it could be pressurized up to (as I recall) three atmospheres.


I just punched a tiny hole on each polar end of a new XSF Sports ball (latest batch) that was not perfectly round with a sewing needle, then performed a bounce test with another new XSF Sports ball fresh out of the box.  After releasing both of them at the height of 48" simultaneously, the resulting bounce height is identical for both. 

So I guess it's safe to say these seamless balls are not pressurized. 


Current USATT Rating: 2181
Argentina National Team Member, 1985-1986.
Current Club: Los Angeles Table Tennis Association.
My Setup: Yinhe Q1 / T64 2.1 black / Saviga V 0.5mm red
Back to Top
wturber View Drop Down
Premier Member
Premier Member
Avatar

Joined: 10/28/2008
Location: United States
Status: Offline
Points: 3899 		Post Options Post Options   Thanks (0) Thanks(0)   Quote wturber Quote  Post ReplyReply Direct Link To This Post Posted: 01/14/2015 at 6:26pm
Originally posted by roundrobin roundrobin wrote:

Originally posted by wturber wturber wrote:

One difference could be internal pressure.  Remember that one of the original features of the seamless was that it could be pressurized up to (as I recall) three atmospheres.


I just punched a tiny hole on each polar end of a new XSF Sports ball (latest batch) that was not perfectly round with a sewing needle, then performed a bounce test with another new XSF Sports ball fresh out of the box.  After releasing both of them at the height of 48" simultaneously, the resulting bounce height is identical for both. 

So I guess it's safe to say these seamless balls are not pressurized. 

Probably so - for the XSF ball.  But you'd actually need to do the same with other brands as well to see if they also fail to differ when punctured.

 I've been dropping balls using a contraption (trap door made from mousetrap) that should give results pretty close to the ITTF T3 setup and with an accuracy of less than 1mm.  I should find two XSF balls that bounce nearly identically and then puncture one and compare using my setup. 
Jay Turberville
www.jayandwanda.com
Hardbat: Nittaku Resist w/ Dr. Evil or Friendship 802-40 OX
Back to Top
Pete73 View Drop Down
Silver Member
Silver Member


Joined: 06/06/2015
Location: canada
Status: Offline
Points: 602 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Pete73 Quote  Post ReplyReply Direct Link To This Post Posted: 10/12/2015 at 10:46pm
At Eacheng in China, the Yinhe *** balls (ITTF) are actually at US$4.99 for a box of 6. This is a good price.

http://www.eacheng.net/index.php?act=detail&ID=3980
Back to Top
cole_ely View Drop Down
Premier Member
Premier Member
Avatar

Joined: 03/16/2005
Location: United States
Status: Offline
Points: 6898 		Post Options Post Options   Thanks (0) Thanks(0)   Quote cole_ely Quote  Post ReplyReply Direct Link To This Post Posted: 10/13/2015 at 11:59am
Shipping is pretty rough from eacheng, though.
Wavestone St with Illumina 1.9r, defender1.7b

Please let me know if I can be of assistance.
Back to Top
slevin View Drop Down
Premier Member
Premier Member


Joined: 03/15/2012
Location: USA
Status: Offline
Points: 3602 		Post Options Post Options   Thanks (0) Thanks(0)   Quote slevin Quote  Post ReplyReply Direct Link To This Post Posted: 10/13/2015 at 1:41pm
Originally posted by NextLevel NextLevel wrote:

The price of the training/club ball has gone up as well on megaspin.

That said, I am stocked up on XSF balls for the year and it is going to be my primary training ball.

XSF training poly-balls? Seamless? Good enough for a robot?

Where do you buy them?
Trade feedback:
http://mytabletennis.net/forum/forum_posts.asp?TID=50787
Back to Top
42andbackpains View Drop Down
Silver Member
Silver Member
Avatar

Joined: 10/05/2014
Location: NYC
Status: Offline
Points: 623 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 42andbackpains Quote  Post ReplyReply Direct Link To This Post Posted: 10/13/2015 at 4:58pm
Originally posted by slevin slevin wrote:

Originally posted by NextLevel NextLevel wrote:

The price of the training/club ball has gone up as well on megaspin.

That said, I am stocked up on XSF balls for the year and it is going to be my primary training ball.

XSF training poly-balls? Seamless? Good enough for a robot?

Where do you buy them?

I think Nextlevel is using the regular XSF 3 star polyballs. Dont order the XSF training balls, those wobble alot and dont play well at all. 

I ordered some XSF 3 star balls from TTNPP about a year ago...and the price still has not changed for a while. 

http://ttnpp.com/store/ball/798-xushaofa-new-seamless-poly-ball-3-stars-ittf-x-72-39.html

ttnpp is a little slow with shipping sometimes. 
Mind is willing, but the back goes out too often :P
OSP Ultimate II 88 grams
FH Dianchi D w/ Secret Sauce
BH Butterfly T05 Red
USATT rating keeps going down
Back to Top
 Post Reply Post Reply Page  <12
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.01
Copyright ©2001-2018 Web Wiz Ltd.

This page was generated in 0.141 seconds.

Become a Fan on Facebook Follow us on Twitter Web Wiz News
Forum Home | Go to the Forums | Forum Help | Disclaimer

MyTableTennis.NET is the trading name of Alex Table Tennis Ltd.

Copyright ©2003-2024 Alex Table Tennis Ltd. All rights reserved.