String's gauge bias

Discussion in 'Bad Dog Cafe' started by albatros, Feb 14, 2020 at 3:02 PM.

  1. albatros

    albatros TDPRI Member

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    Hi everyone,
    did you ever measure your strings?
    These are brand new fresh sets.
    Far below the 0.36 expected.
    Is my finding of any interest for us guitarists?
    Thanks
    Bye
    Francesco [​IMG][​IMG]

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  2. don71

    don71 Tele-Afflicted

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    On occasion I measure with calipers, not often. Never experienced them not matching. Perhaps a calibration error with the calipers?
     
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  3. EsquireBoy

    EsquireBoy Tele-Holic

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    How accurate is your tool?
    It looks a lot like mine, with which I can get close enough but yet different values between two measurements.
     
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  4. JL_LI

    JL_LI Friend of Leo's

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    Those look like wound strings to me. Look at the measuring blades of your caliper. There, a knife edge at the tip and a full thickness blade farther up. Measure your strings off the guitar using the thick part of the blade. 0.36 will measure 0.36. Then measure with the knife edge. It will fit a hundredth of an inch or so into the gaps between the wire wraps of the wind. That’s where the 0.34 measurement comes from. The trick with any tool is knowing how to use it. I’m more comfortable with a measuring microscope but my Mitutoyo digital caliper has never let me down for a quick and dirty go / no go measurement.
     
  5. guitartwonk

    guitartwonk Tele-Meister

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    This.

    I have calipers exactly like these. Two things can go wrong here. One, what @JL_LI said. Two, have you zeroed the calipers before starting?
     
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  6. albatros

    albatros TDPRI Member

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    I adopted your method but the result is identical [​IMG][​IMG]

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  7. jimgchord

    jimgchord Tele-Afflicted

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    Looks like a cheap caliper.
     
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  8. MarkieMark

    MarkieMark Tele-Holic

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    The term "nominal" comes to mind.
     
  9. dougstrum

    dougstrum Tele-Afflicted

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    If you want a truly accurate measurement a micrometer would be the better tool.
     
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  10. Obsessed

    Obsessed Telefied Ad Free Member

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    Just because a tool has a digital readout, doesn't make it accurate. The fluctuation of a string is not going to vary that much. It really does take practice to get consistent "good" results from calipers. As mentioned by @dougstrum , micrometers would give you much more accurate results without as much practice. As @JL_LI mentions about measuring wound springs with the tip is going to give you varied results, and at the same time, if you use the wide flats of the calipers, that will give you "bad" average results. Don't forget to always wipe the measuring surfaces of all measuring devices before each measurement and always check the "0.00" reading before each and every measurement.
     
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  11. JL_LI

    JL_LI Friend of Leo's

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    A micrometer will give consistent results of the string if its jaw is closed with the same tension each time. Consistent results from a caliper requires the same care with consistency of tension. The down side to measuring with the wide flat of a caliper that it required a little more skill so that there is no curvature induced in the string where it is measured. As with any tool, choosing one appropriate for the job is critical to your success, as is skill that only comes from practice. Now let's think about our little community here. A good many of us are self taught. Technique is often no more refined than what's necessary to get the job done. There are a few of us degreed in STEM curricula, even fewer with an advanced degree. How many do you suppose know what a Vernier scale is or how to read it. A digital micrometer takes that challenge away, but how many with no other use for the thing than measuring strings will be willing to spend as much on a micrometer as a good Pacific rim guitar?

    What amazes me more than anything else is how we get into esoteric discussions about things that really don't matter. Does anyone really believe that Daddario, Ernie Ball, Dunlop, Fender, or any other prestigious company has such poor quality control that close enough is good enough?
     
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  12. Obsessed

    Obsessed Telefied Ad Free Member

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    Yup. Point being that just because you can read a digital measuring device, does not infer that it is being used correctly. In addition to this is the use of feeler guages or other measuring devices for measuring string "action". As @JL_LI mentions about the tension of micrometer use, so is the case with how to properly use feeler gauges too.
     
  13. Nick Fanis

    Nick Fanis Poster Extraordinaire Ad Free Member

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    You'd be surprised my friend, you'd be surprised... :lol:
     
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  14. 1300 E Valencia

    1300 E Valencia Friend of Leo's

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    They have medication for this.
    I mean, besides beer.
     
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  15. TheGoodTexan

    TheGoodTexan Moderator Staff Member Ad Free Member

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    Measure the wound strings length-wise, rather than measuring a cross section of it. Maybe you’re measuring between the winds??

    It might be more uniform if you measure across the top of several winds.
     
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  16. albatros

    albatros TDPRI Member

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    IMO string's quality controls in basic cheap sets are going down as far as premium expensive strings are put on the market. This is only my personal opinion.

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  17. Frodebro

    Frodebro Doctor of Teleocity Ad Free Member

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    This is something that, quite honestly, falls under the category of "close enough for rock and roll."
     
  18. Modman68

    Modman68 Tele-Holic

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    Wait till you measure the values of your pots and capacitors...


    Sent from my iPhone using Tapatalk
     
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  19. kbold

    kbold Tele-Afflicted Silver Supporter

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    Could always send your calipers off to a standards laboratory for calibration.
    Would cost a lot more than the calipers though.
     
  20. Clive Hugh

    Clive Hugh Tele-Afflicted

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    You are only talking about .001”, thats nothing, in manufacturing a tolerance of +/- .001” is common and completely within spec. Agree with the comments on calipers, I’m a machinist and when I learned there was no such thing as digital, we had vernier and micrometers, verniers and digital are for indication, for final measurement you use a mic.
     
    Last edited: Feb 15, 2020 at 2:37 AM
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