Goodbye Crank and Hello Constant Pull (Wise 2086 aka Tennis Head)

**illusionistpro** · 07-22-2008, 03:48 AM

i swear theres something about you and only posting stringing pics with the woven 7.

**DinkAlot** · 07-22-2008, 03:53 AM

Elliot, I swear there's something about you, always posting nonsense in my posts.

And how do you know for sure it's a Woven 7? It could be a fake or replica by SATX.

Originally Posted by illusionistpro

i swear theres something about you and only posting stringing pics with the woven 7.

**Dreamzz** · 07-22-2008, 05:26 AM

Originally Posted by illusionistpro

i swear theres something about you and only posting stringing pics with the woven 7.

haha, well, the one above which cooler quoted is an old ti-10, is it not?

**gsloh** · 07-22-2008, 05:56 AM

Wow - those SPtennis side mounts look sweet! Would definitely solve the problem of digging strings blocked by the side supports out! Look like they'll fit on the Pro's Pro Pilot as well.

Looked up the SPTennis website & couldn't see them though =(. Any leads on how to get hold of them, Dinkie/Pete?

**taneepak** · 07-22-2008, 06:56 AM

Originally Posted by DinkAlot

Update: I picked up these SPTennis badminton specific mounts thanks to PeteLSD and they work like a charm. Also working like a charm is the 2086. I've strung a few hundred rackets with it now and it's extremely consistent.

With the 10% pre-stretch option in place, there's minimal tension loss and it's definitely a consistent 3+lbs. tighter than its crank counterparts. I've had quite a few people test my rackets and they say, "This is tight, what is it? 32-34lbs.?" I reply, "Nope, it's 27-28lbs. on my machine."

Anyway, the panda verdict on the Wise 2086 is Excellent+!

The side supports seem to work on one side of the frame, not on the opposite side. Wouldn't "V" shaped supports be better, to ensure balanced stress on both sides?

**DinkAlot** · 07-22-2008, 10:25 AM

Originally Posted by taneepak

The side supports seem to work on one side of the frame, not on the opposite side. Wouldn't "V" shaped supports be better, to ensure balanced stress on both sides?

Not sure, but I'm happy with these.

**DinkAlot** · 07-22-2008, 10:30 AM

You'll have to contact Pete for this, I believe it's a special order.

Originally Posted by gsloh

Wow - those SPtennis side mounts look sweet! Would definitely solve the problem of digging strings blocked by the side supports out! Look like they'll fit on the Pro's Pro Pilot as well.

Looked up the SPTennis website & couldn't see them though =(. Any leads on how to get hold of them, Dinkie/Pete?

**KingO** · 07-23-2008, 12:35 AM

Originally Posted by taneepak

The side supports seem to work on one side of the frame, not on the opposite side. Wouldn't "V" shaped supports be better, to ensure balanced stress on both sides?

It's actually the same principle as the "K" shaped supports, but with better access to the strings. Has anybody questioned those?

**taneepak** · 07-23-2008, 03:10 AM

Originally Posted by KingO

It's actually the same principle as the "K" shaped supports, but with better access to the strings. Has anybody questioned those?

A badminton "K" support has a very narrow gap, which allows the frame to have both sides of the x-section contact the "K" support. This one has a very large gap with only one side of the "K" support bracing one side of the x-section. Of course this is better than nothing. Maybe a tennis "K" support is not as good as a badminton "K" support, although the former looks massive.

**KingO** · 07-23-2008, 12:55 PM

Originally Posted by taneepak

A badminton "K" support has a very narrow gap, which allows the frame to have both sides of the x-section contact the "K" support. This one has a very large gap with only one side of the "K" support bracing one side of the x-section. Of course this is better than nothing. Maybe a tennis "K" support is not as good as a badminton "K" support, although the former looks massive.

I'm not sure I follow. But wasn't Dink's previous supports ("K" shaped, also found in the Alpha Revo), have the same contact points on the racket as this one, but with better access to the strings? Doesn't Pete's Gamma 6004 support also have the same contact points as this one? You yourself said "Looks good for distortionless stringing of badminton racquets" in Pete's SP Opus thread http://www.badmintoncentral.com/foru...hlight=SP+Opus regarding the same exact badminton supports. Are they not good enough now?

**DinkAlot** · 07-23-2008, 01:05 PM

I've never owned K-Supports. What I have is good enough. I'm satisified.

Originally Posted by KingO

I'm not sure I follow. But wasn't Dink's previous supports ("K" shaped, also found in the Alpha Revo), have the same contact points on the racket as this one, but with better access to the strings?

**KingO** · 07-23-2008, 01:27 PM

Originally Posted by DinkAlot

I've never owned K-Supports. What I have is good enough. I'm satisified.

I guess it's my interpretation, but if you rotate the "K" 90 degrees to the left, wouldn't that look like your previous support? One side for tennis, the other side for badminton.

**jerby** · 07-23-2008, 01:35 PM

Taneepak,
come one...you've got to be kidding me...

some sort of unquantifiable "stress" that will be put on one 'side' of the frame, because the support if no V, and it doesn't "support" the lower part. is that it?

The top part is so close to the grommet, there's no moment to transfer, the racket can't go anywhere... There's nothing wrong with those supports.

Dan,
That's not a w7, right? what is it?

**ilovedude** · 07-23-2008, 03:43 PM

Points of interest,
A B
l-------------------l ------>

This simple diagram shows 2 side supports A & B, when you pull the string from B side, the frame will get squeezed and got pulled a couple of mm away from A and disregard whether it is a K or V support, right. Would that be a better design if those side supports are made like two "l" one inside and one outside the frame , so when we pull the string the "l" design inside support will secure the frame in place without any distortion. I hope I am making my point clear so you guys understand.
Any comment.

**Pete LSD** · 07-23-2008, 04:55 PM

Yes, the Eagnas ST-200 offers someting similar.

Originally Posted by ilovedude

Points of interest,
A B
l-------------------l ------>

This simple diagram shows 2 side supports A & B, when you pull the string from B side, the frame will get squeezed and got pulled a couple of mm away from A and disregard whether it is a K or V support, right. Would that be a better design if those side supports are made like two "l" one inside and one outside the frame , so when we pull the string the "l" design inside support will secure the frame in place without any distortion. I hope I am making my point clear so you guys understand.
Any comment.

**sphere83** · 09-06-2008, 11:49 PM

I've been eyeing this machine for ages but I'm living in Aus so it is selling for a freakin AUD $1090.00 (without shipping costs) through its main distributor Jadee Sports.

http://www.jadeesports.com.au/c/1283...-machines.html

That is way over my current budget so does anybody knows where to get it for a cheaper price? Also, my current machine is Eagnas Hawk 126e (http://www.eagnas.com/hawk126e.html#spescl) which I personally think could be better if I could fit the tennishead 2086 onto it. However, I was wondering if my current setup is suitable for tennishead? It would be great if kind souls out there could help enlighten me

Thanks in advance!

**ph_leung** · 09-28-2008, 02:58 PM

Originally Posted by DinkAlot

I've never had a problem with racket length before and after stringing. I almost always have at least two or more of the same rackets and after I string one, I measure it to the unstrung one. They are always the same length.

Panda Finding: Electronic Constant Pull (ECP) vs. Crank: tension difference about 3lbs., all other things being equal.

Way back in the day when I started stringing, I had heard constant pull strung tighter than crank (the reason why made sense). At that time, I calibrated my crank to be about 1.5lbs. higher than it actually was to more closely simulate constant pull (CP). Master PeteLSD told me his experience was, CP vs. Crank was a difference of about 3lbs. After experiencing both, I concur.

So far I've strung: 2 x new Ti10s, 2 x Cab20s, 2 x Chao Pai NP728s with the Wise and there have been no problems at all. The highest I've strung on the Wise so far is 27.0 x 29.7lbs. (~28.3lbs.) which feels like my crank at about 28.25 x 31.0. (~29.6lbs.). Take into account the 1.5lbs. I added to the crank, that's about 2.8lbs., almost a 3lbs. difference.

Master Pete is always right when it comes to stringing...

I had the pleasure of trying out a Wise tension head yesterday. Here's my experience with it.

I strung two identical rackets using white BG80. One was on the original crank and one on the ECP. I checked the calibration with my Berkeley digital scale. From factory the crank was ~3lbs too low. The electric tension head was within 0.5lbs.

I usually string 29x~30.5 2PTD on my crank to get close to a 28lb when everything settles.
Yesterday I used the following to get identical string tone: 29x~30.5 crank/prestretched by hand, 28x30.8 CP/no overpull/no prestretch.

The electric is easier and faster to string with especially with the footpedal. String slip on the gripper occurs above 28lbs. It should be easy to modify the gripper with a bit of grinding to bring the two sides closer to accept all badminton strings and tensions. Instead of using leather grip, I used one piece of cardboard (from the packaging of Yonex string) as a workaround.

The electric is a pleasure to use. It is not very noisy. People playing MJ two feet away and another watching TV didn't seem distracted.

Now, back to my crude little tabletop crank...