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  1. Crazydoc

    Sergetti Stringing - WOW!

    String friction perhaps ;)
  2. Crazydoc

    Chopping and slicing TGT291.2 to see how it's built.

    I saw up rackets quite often. I use an electronic jigsaw with a metal saw blade. Regards
  3. Crazydoc

    Manually Measuring Swingweight

    No, sorry.
  4. Crazydoc

    Which machine?

    Hey, Determine need (amount stringjobs) ==> Determine budget ==> Use forum search. If you buy cheap, you'll buy twice. Only as direction: Dropweight >500€; electric > 1500€ for a useful one.. regards Crazy
  5. Crazydoc

    16 main 22 crosses on 18x20

    Apart from the weaving error at the 21st Cross ..... :X3:
  6. Crazydoc

    16 main 22 crosses on 18x20

    I like the knots ;)
  7. Crazydoc

    différences between head lite tour 660, pro tour lite XL 660 and tour lite XL 660?

    The post is a bit older, but for posterity I can still contribute a little. Firstly, your list of models is about 2 different rackets (mold / layup). On the one hand, the Lite Tour, is a sort of hairpin version of the Pro Tour 630 without weight, at the handle. This makes this racket very head...
  8. Crazydoc

    The HEAD Twaron Club

    love these frames ;)
  9. Crazydoc

    Cross tension always reads a lot lower

    Hey, I'll try again. If I understand you correctly, you want to know why the cross strings at a set tension on your machine, do not reflect that weight on the finished racquet measured with your tool. Also, you seem to be interested in finding out if you strung a racket with the correct...
  10. Crazydoc

    Cross tension always reads a lot lower

    Why? I'm using a digital caliber to measure the length and the with before and after stringing. If it's the same the relation of main and cross tension is correct for me....
  11. Crazydoc

    Cross tension always reads a lot lower

    Hey, this has been discussed countless times. it is basically a question of philosophy. I personally choose the tension of the mains ans crosses so that the racket has the same dimensions strung/unstrung. Regards
  12. Crazydoc

    Electronic stringing machine

    Where did you come from WNB93?
  13. Crazydoc

    Manually Measuring Swingweight

    Yes...... also the flex can be different...
  14. Crazydoc

    This is my Boomstick!

    and what does it really do?
  15. Crazydoc

    Manually Measuring Swingweight

    Yes of course that is a prerequisite!
  16. Crazydoc

    Manually Measuring Swingweight

    Sorry Irvin, but I've rarely read such rubbish. How do you come up with this statement, because it is fundamentally wrong? With the wrong measuring equipment and too little knowledge, I accept that it is more susceptible to errors, but that is already the only disadvantage... regards
  17. Crazydoc

    Higher ref tension on crosses to compensate for friction?

    I think the initial post is a legitimate and good question. I completely share the aspect that ultimately the tension of the main strings should compensate for the tension of the cross strings. Because that is the only thing that is generally valid and sensible in my opinion. Especially when you...
  18. Crazydoc

    PROTENNIS stringing machine

    Somehow the product range reminds me of that of Gamma....But I find the positioning of the control unit in need of improvement. regards
  19. Crazydoc

    Premium Stringer 3600 and Wise 2086 - thoughts and things to look out for

    Hey, Well, it should come as no surprise that the machine itself cannot compete with better quality but also more expensive machines. Nevertheless, you can of course string with the 3600! A weak point of the machine in my opinion are the clamps. You have to play around a bit until you have the...
  20. Crazydoc

    What stringing machine fits my needs?

    I think the direct support is actually quite good. But of course it doesn't only have advantages... Greetings
  21. Crazydoc

    SwingTool with butt cap hang point?

    I'm afraid I'm going to have to disagree a little bit. What you measure when you turn the racket 90 degrees is the so-called spinweight. If you subtract the SW from this spin weight, you can theoretically calculate the twist weight. The prerequisite for this, however, would be a measuring device...
  22. Crazydoc

    SwingTool with butt cap hang point?

    Maybe this is an option for the flex problem ;). https://www.dropbox.com/s/deupmfgwzprwhrz/20201130_145923.jpg?dl=0
  23. Crazydoc

    Tension is always higher when I string than when I have any shop do my stringing

    I would at first check if the reference tension of the stringway (with a case scale) is correct ....Believe is good, but controlle is better ;).... I also have an ML100 as a backup machine at home. I doubt that you can achieve the same stringbed tension with the ML and a multi-string job...
  24. Crazydoc

    Wilson Ultra Tour Grommets

    Yes, they will fit. I've installed Ultra Tour Grommets on Ultra Pro's some time ago. The Grommets of Ultra Pro where slightly heavier. Replacing the grommet is not witchcraft. It is best to soak the replacement grommet in water for a day so that they become nice and supple. Alternatively, you...
  25. Crazydoc

    What stringing machine fits my needs?

    Also available with Wise Tension Head. That video shows an earlier Version. Some smal Details like curved Load Spreader has been aproved...
  26. Crazydoc

    Home made swingweight machine emulating Babolat RDC/Prince PTC - a fully working one. Total cost roughly $10...

    Not really. I'm using something like that: https://cds.cern.ch/record/337858/files/9710029.pdf . It's quite similar and have the same base. I have taken several approaches to do the calibration. There are more ways that one to come to an good result. Basically, it is not that important to...
  27. Crazydoc

    Home made swingweight machine emulating Babolat RDC/Prince PTC - a fully working one. Total cost roughly $10...

    Hey, I have to say that Tregix has already summarised the topic excellently. (y) In simple terms, the aim is to keep the influencing factors of the damping (springs,spring arangement, bearings, etc.) as low as possible in order to keep the time difference between the pendulum swings to be...
  28. Crazydoc

    Home made swingweight machine emulating Babolat RDC/Prince PTC - a fully working one. Total cost roughly $10...

    At first you have to understand that there will not be one type of spring for all machines. Basically, you have to think about how far you mount the springs from the rotation axis. Also, how much to preload the spring and how far away the suspension points at the other end should be. These...
  29. Crazydoc

    Home made swingweight machine emulating Babolat RDC/Prince PTC - a fully working one. Total cost roughly $10...

    I use a pre-written code from me.;) No, seriously. That is something special. There are a lot of small things that go into such a measurement. Especially if you want to aim for such accuracy. It starts with hardware changes and ends with software refinements. There is nothing out of the box
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