Video - adjusting and maintaining a lockout stringer

Discussion in 'Stringing Techniques / Stringing Machines' started by Irvin, Aug 7, 2010.

  1. Irvin

    Irvin G.O.A.T.

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    #1
  2. David123

    David123 Hall of Fame

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    other than forgetting to mention to clean the tension gripper :p, another superb video from Irvin. Thanks a bunch!
     
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  3. Irvin

    Irvin G.O.A.T.

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    You are absolutely correct 'David123' I did not mention how to clean the gripper. I should have. When I do clean the gripper (and I do some times but not as oftern as the clamps) I do not use a pipe cleaner as wet as the one I use to clean the clamps. There are ball bearing on the outside of the gripper clamps and I would hate to get all the oil out of there. So I use a used pipe cleaner just barely damp.

    Irvin
     
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  4. struggle

    struggle Hall of Fame

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    good one irvin.
    funny, i never even considered just mounting my calibrator that way. i either ran it low, out the side of the turntable off the fixed stringclamps (reading was way too high)
    or ran it in a racket (readings seemed to be accurate).

    tonite i'm gonna rig the kevlar (thanks again!) and try it all three ways (yours included, which is simple and makes lots of sense).
     
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  5. Irvin

    Irvin G.O.A.T.

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    ^^ You never have to use a clamp other than one to hold the two string on either side of the 12 oclock position. If I use the method suggested by Gamma I have to apply the brake to keep the turntable in place and I never seem to have enough room. Applying a brake means I am not applying tension in a straight line. When I do that I don't think I get a true reading.

    Irvin
     
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  6. struggle

    struggle Hall of Fame

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    yeah, i like it. BUT i don't have a floating clamp, perhaps my starting clamp will work. i'll see...looks like i could also just loop it over the knob at 12 oclock.
     
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  7. Irvin

    Irvin G.O.A.T.

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    I do not think a starting clamp will work. You will be pulling the clamp apart with the natural pull of the string. I would just try to tie in on somehow. Maybe make and large loop and wrap it around the 12 o'clock support a few times so the knot is not under direct pressure. Two string in a starting clamp do not work well either the one on the top gets the least grab.

    Irvin
     
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  8. airman88

    airman88 Semi-Pro

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    Couple clamp and calibration followup questions most likely for Irvin...

    1)How tight do you normally tighten the clamps. Is there a standard way to test and adjust the tightness? I tested by clamping a small piece of string and pulling to see if it would slip. But it slipped much more easily then a string would on the racket. Also, the one that felt tighter seemed to slip more.

    2) Also, I calibrated the tensioner using your method above. Originally, I had clamped it and found that the tension was maybe low by a pound or so. But your way, it seemed to be 5 pounds low. There is also some variability if I measure the tension several times. So I adjusted the screw to where it appears to be more accurate at 60 lbs. But when I try 65 lbs, the meter reads closer to 70 lbs. My question is how accurate is calibration (could a meter be wrong and are they consistent) and is there more fine tuning necessary for high and low tensions (I kind of just turned the screw a little).
     
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  9. Irvin

    Irvin G.O.A.T.

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    ^^ Well to adjust the clamps I sort of go by feel. I do not want the clamp to start getting tight on the string as soon as I start to clamp it, I think it is about 1/2 way. And I do not want the clamp to be too tight on the string when it fully closes.

    To adjust the tensioner I follow the Gamma instructions and always adjust at 60 lbs. No matter how many times I test it it pulls at 60 lbs every time. I have never tested any other tension.

    Irvin
     
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