**Stringway – information – Questions – answers**

villis

Rookie
The elongation figures of the string only tell how the string stretches and “resprings” after the string bed is deflected.
OK.
The elongation figures of a string show the most important quality of a string, it shows what the player feels on ball impact and also has an important influence on the durability of a string.

Which one of these is correct?
 
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The elongation figures of a string show the most important quality of a string, it shows what the player feels on ball impact and also has an important influence on the durability of a string.

Yes this is very strue.
But when you compare strings the sbs has to be the same because that is what the player feels most.
 

FLW

New User
@Stringway Official,

I’m pretty sure I searched throughly and could not find a straight answer. This is for the T92 clamp system. I know it is pretty obvious but I need to ask before I make a decision on a stringing machine.
Question: what prevent the base of the clamps from moving in the opposite direction of the tension after you clamped a string and let go of the string from the tensioner? I saw a thread from someone saying that he owns a ML100 with T92 clamp system and he said that after closing the clamp (without holding any string), he could move the clamp in both Y and X axis. The T98 is a double action clamp so I understand that one action is to secure the base of the clamp to the turn table. Thanks.
 
@FLW
poGMATnRj

It is a very logic question funny that we did not get it more, while we make the system since 1992.
The system locks because of the relation between the distance between the string and the shaft and the length of the guiding bush. The bigger this distance the more difficult the bush will slide.
Therefore it is important to push the system around low.

For minimum drawback we advise to push the clamp back before closing it.
po1orsfyj

The good thing about this is that there is no mechanism that can wear so very old systems still work very well.
mhtafelmk2j

The Pacific machines use this same principle

pngIAoJ3j

When you have anymore questions please let me know.
 

FLW

New User
@FLW
poGMATnRj

It is a very logic question funny that we did not get it more, while we make the system since 1992.
The system locks because of the relation between the distance between the string and the shaft and the length of the guiding bush. The bigger this distance the more difficult the bush will slide.
Therefore it is important to push the system around low.

For minimum drawback we advise to push the clamp back before closing it.
po1orsfyj

The good thing about this is that there is no mechanism that can wear so very old systems still work very well.
mhtafelmk2j

The Pacific machines use this same principle

pngIAoJ3j

When you have anymore questions please let me know.
Thank you
 

FLW

New User
@Stringway Official,

Who is your distributor in the US? New Tech Tennis? Is there a coupon or discount from the factory/distributor I can use to purchase a stringing machine? Unfortunately, tennis is an expensive sports and everything that comes with it has a big tag price. So whatever you can do to help, is well appreciated. Thank you
 

NeverBeBeat

New User
Can you please post a full list of the conversion range from the Kg/cm to RDC, for frame stiffness, based on RDC ratings here? For example, I have some frames that are supposed to be around 90 stiffness, but I couldn't reverse engineer the formula to figure out what that converts to on your Kg/cm scale.

Additionally, some of the numbers listed, see highlighted in pink numbers, in the Excel Spreadsheet you posted do not match the scale on the right side.

S6l4b1w.png


7.09 = ~50 RDC listed as 61
7.51 = ~53 RDC listed as 61
9.24 = ~62 RDC listed as 66
 
Can you please post a full list of the conversion range from the Kg/cm to RDC, for frame stiffness, based on RDC ratings here?
Additionally, some of the numbers listed, see highlighted in pink numbers, in the Excel Spreadsheet you posted do not match the scale on the right side.

Some more information about this:
The table shows tests done by a stringer who had all systems so he could compare, so we do not know the reason for the differences.

For example, I have some frames that are supposed to be around 90 stiffness,
Important to know is the following:
- The RA system measures from 100 downwards. This means that the deflection for 90 (=10) is 3 times smaller than for 70 (=30).
So a racquet with an RA value of 90 is 3 times stiffer than one with RA value 70.
I have never heard of racquet with RA80 or higher.

This means that the RA scale is very unlinear and less accurate for higher RA values.
The formula that made the graph is RA=100-351/ST2
Meaning:
For ST2 = 12 >>> RA=70.7
For ST2 = 35 >>> RA=89.9

poL5IXxmj
 
HAPPY BADMINTON STRINGER
Hi guys,
Just want to share this message with you coming from a badminton stringer with a ML100-T92.
Of course this kind of feedback makes a designer proud and happy.

Hi Fred,
Its Marc, I ordered the ML100 stringing machine with badminton racket support set a few weeks ago and i just wanted to say that the stringing experience is simply very nice. I have to admit, I don't have any experience with other stringing machines, so I cannot really compare, but I don't see how this machine can be improved in any way. Everything is so thought through and just works perfectly, just like a well oiled machine (haha :D). Even though I study engineering, it is still a mystery to me how you managed to make the drop weight lock out in the upwards position only when no string is currently clamped in the pulling system. It is just amazing.
 
I would like to share the message I received this morning.
It may prove that you do not need a big machine to string accurately.

I just wanted to say thank you very much for the stringing machine, it arrived in perfect conditions and it was also a very fast shipment. This machine actually surprised me on how precise it is with the tension, it is also stable, lightweight and portable, making it perfect for me to travel and have well strung rackets. Thank you.

Cz9amr.jpg
 
Hi guys,

pm9De5Ovj


A Dutch owner of a very old Ektelon machine contacted us because he lost the racquet supports of his machine.
I would like to help him and make the parts, but I need the dimensions of the parts.
Is there anybody with an Ektelon and a caliper who can make a sketch of the parts with the dimensions.
Thank you
Fred
 

mattimag

Rookie
Hi guys,

pm9De5Ovj


A Dutch owner of a very old Ektelon machine contacted us because he lost the racquet supports of his machine.
I would like to help him and make the parts, but I need the dimensions of the parts.
Is there anybody with an Ektelon and a caliper who can make a sketch of the parts with the dimensions.
Thank you
Fred

I have an Ektelon Model H and I can help you
 
Clamp systems T98 and T92.

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Every now and then people find pictures of our double action clamp system and ask about it;
Hereby some more information:
We do not make the T98 system anymore because the T92 system is better in every detail:
- It moves around easier.
- The guiding system locks “automatically” without any mechanism.
- There are no parts that wear, even very old (30+ years) still work without a problem.
- It is stiffer so less deformation and less loss of tension.
- The clamps are the same.

If you have anymore questions let me know
 
Quote From another thread:
Is it worth buying a tension meter if you start stringing? I was thinking about this as I think a device that shows if the tension is right could be helpful to show if I am stringing correctly.


poi1TYQ2j

This week a customer sent a Stringlab 2 back because he thought that the system could measure the stringing tension instead of the string bed stiffness.
The advantage of measuring the SBS is that it is a reference for the playability of the string bed.
Disadvantage of measuring the stringing tension is that the tension is different in every string:
- The tension in the mains is higher than the set value because these are tensioned extra by the cross strings.
- The tension in the crosses is lower because of all the friction with the crosses.

The translation between SBS and stringing tension depends on the size of the racquet and the number of strings, this is “built in” our online Tension Advisor.
On page 3 you enter the racquet specs to calculate the tension for a certain SBS

https://www.stringwaynederland.nl/SW-TA-online/SwingCalc/tad-en.php

This table shows the relation between SBS en tension:

In LBS;

We also have it in KG’s if you are interested
 
Trick for the MS140LS on a stand.
pmOegXJcj

The light weight MS140 can be used on a stand but it is important to know how to use it.

When the machine is used on higher tensions the lifting force on the lever may lift the stand off the floor.
You can prevent this in 2 ways:

- Add extra weight in the tube of the stand.
Like a long tube (long stocking) with some kg’s of grind in it.
- Put your foot on the toe of the stand. The front leg is supplied with protection.

To fix the machine on the stand there is a key hole in the bottom of the frame.
pnwhpyJMj
 
CALIBRATION OF THE STRINGLAB 2
A German customer was worried about the calibration of his Stringlab 2.
The picture shows how we calibrate every system with 2 calibration springs.

pnZ1LArpj

Once the calibration is done there is no reason that it would change.

We sent a calibrated coil spring to the customer.

This morning we received his message:

In German

Hallo Fred,
Habe Kalibrierung durchgeführt, war alles ok , falscher Alarm.
Batterie war zu schwach und dadurch hat der springlab 2 falsch angezeigt. Als ich neue Batterien eingesetzt habe, stimmten die Werte wieder. Wieder was dazu gelernt ;)
Viele Grüße und danke für deinen schnellen Support

In English
Hello Fred,
Did calibration, everything was ok, false alarm.
The battery was too weak and as a result the springlab 2 displayed incorrectly. When I put new batteries in, the values were correct again. Learned something again ;)
Best regards and thank you for your quick support
SO:
IF you use a Stringlab do not worry about the calibration.
If you have questions let me know.
 

esgee48

G.O.A.T.
R u saying racquet is 137 sq in? If so, measure longest vertical inside hoop at central mains. Compare to the widest you can move the supports. Max ITF vertical is 15.5 in so I suspect your number should be near there.
 

terry8888

New User
R u saying racquet is 137 sq in? If so, measure longest vertical inside hoop at central mains. Compare to the widest you can move the supports. Max ITF vertical is 15.5 in so I suspect your number should be near there.
the racquet is 37sq in, my bad, it’s a training racquet with a tiny head size.
 
Hi,
How narrow the ms140’s mounts can go ? I have a Sabre Tennis racquet from functional tennis (37 inch sqft), i’m wondering i can mount this racquet on the ms140 or not.
Thank you.

These pictures show the maximum and minimum racquet head length which fits on the MS140LS-tennis.
For the badminton machine hese dimensions are 100 mm smaller.

pmQXF8OHj



poG81mz3j
 

devoker

Rookie
The design of the machine is genius. I wish the shipping wouldn't cost so much to Australia and I could buy one of these.
 

onehandbh

G.O.A.T.
I wish the MS140 had been available when I first purchased my ML90. I love my ML90 and have had it for over 10 years, but I do not have an area designated just for stringing, so every time I want to string one of my racquets, I have to lug my stringer out of my closet and put it on my kitchen counter. I think the MS140 only weights about 7kg. My ML90 feels like it must be around 15kg.
 
MS140LS light weight for badminton and tennis.
We get quite a lot of inquiries for the MS140LS, for tennis and badminton.
Because the tension range of the MS140 is limited it is not possible to string badminton and tennis on the MS140.

The differences between both machines are:
- The springs are lighter for the badminton version, the tension range is 8-16 kg (18-34 lbs).
The tension range for the tennis machine is 12- 28 kg (28-62 lbs)
- The little weight (=hybrid system) raises both ranges by 4 kg (9 lbs)

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- The tension scale for badminton is different.

gsNPHW.jpg


- The clamping range of the racquet support is different. The Spindel is connected to the inner guiding arm on one side and to the outer on the other side.

WGN4yl.jpg
 
Of course it is exciting to produce products which are our own developments.
But with the long delivery times it is also nerve wrecking.
Is everything like it should be.
This time it was not:
We received 1200 sets of castings for flying clamps but they forgot to polish them.
Fortunately they are not from China and we will get them back next week.
 
We get quite some requests for machines for badminton at the moment.
But up till now we only could offer them with fixed clamps because we do not make flying clamps for badminton.

We found some nice flying clamps for badminton to supply with machines.
poIoDzomj

pmuHhG82j
 
MAJOR CHECKS AFTER STRINGING.
My Japanese agent and I had a long discussion with a badminton stringer.
2 subjects were completely unknown for him which is amazing:
The major questions after doing a string job are:
- Is the string bed stiffness ok for the player who uses it. This can be checked with a String bed stiffness tester like our Stringlab 2.


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mkc4qoj



- How much did the shape of the racquet change after stringing.
The more deflection the more stress in the racquet which increases the chance of cracks.
To check this the stringer should compare the length of the racquet before and after stringing.

When the length is bigger after stringing the tension of the cross strings was too high for this racquet.

Our online Tension Advisor can be used to calculate advised Tensions for mains and crossed.
https://www.stringwaynederland.nl/SW-TA-online/SwingCalc/tad-en.php

poYWzPtEj

These tensions can be checked by comparing the length and width before and after stringing.
When there is a difference the tension must a adjusted for the next string job.
 
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