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Solution for pot shaft and knob fitting

Discussion in 'Tech-Talk' started by StratPlus97, Dec 10, 2019.

  1. StratPlus97

    StratPlus97 Senior Stratmaster

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    I used some ALPHA pots that have the small pot shaft and needed to fit on a USA knob for my Strat. I took some shrink tubing, cut it to size and shrunk it to the shaft. It’s a perfect fit.

    [​IMG]


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  2. Nick-O

    Nick-O Senior Stratmaster

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    That's a good idea...nice looking broken in tort too!
     
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  3. StratPlus97

    StratPlus97 Senior Stratmaster

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    Thanks! Pretty pumped how well it worked! It was kind of driving me nuts before.


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  4. Nuno

    Nuno Strat-Talk Member

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    Did something similar on some old loose knobs.
     

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  5. guitarchaeologist

    guitarchaeologist Papa Americano Silver Member

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    Curious, would separating the shaft halves a little not accomplish the same goal? That's why they are split. What am I missing???
     
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  6. Deebs3

    Deebs3 Strat-O-Master

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    you can't separate the shafts, they break at the slightest movement... believe me... i know...
    Edit: actually i tried squishing mine together to fit a smaller knob... and it broke easy.... assume it is the same if you try to spread it apart..
     
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  7. Silvercrow

    Silvercrow Senior Stratmaster

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    Not speaking for the OP, but he might have been concerned over one of the halves snapping / breaking off. Ain't hard to do. I know of a good technique to squeeze them together a bit, but I'd be nervous over widening them. Then again, I'm not the best handyman out there...:rolleyes:

    @StratPlus97 - great idea and great job!

    Brian
     
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  8. guitarchaeologist

    guitarchaeologist Papa Americano Silver Member

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    I understand the concern, but in almost 40 years of maintaining my own guitars, I've never broken one. A slotted screw driven placed between them and a gentle pull to one side has always done the trick. It's just the way it's done by most people and techs. The OPs solution seems to have worked, I was just curious about the chose of methods.
     
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  9. Crozius

    Crozius Strat-Talk Member

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    Good idea, very clean looking. I’ve often used a small bit of masking tape for the same effect. Or a dot of hot glue on the top of the shaft for when it’s really close, but just slides off too easy.
     
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  10. Nuno

    Nuno Strat-Talk Member

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    Its not worth the risk - a bit of heatshrink does the job just fine.. And as its a rubbery material i think its even better.
     
  11. Believer7713

    Believer7713 The Pink Bunny Frankenstein Silver Member

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    Small screwdriver in the slot and a tiny tweak either direction and the problem of a loose knob is solved. No risk at all. I've done it close to a thousand times on guitars, amplifiers and in my line of work. The only times, which is only 2 that I can remember, that I've seen shafts break were due to people trying to bend it out like they were hammering a Floyd Rose wiggle stick instead of trying to just make a slight adjustment. Plus, if it does break, pots are cheap and easy to replace.

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  12. StratPlus97

    StratPlus97 Senior Stratmaster

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    I broke two of them doing that. Tried separating it very very slightly and it broke off.


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  13. StratPlus97

    StratPlus97 Senior Stratmaster

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    Not all pots are created equal. I know some use the more solid brass but these pots were not. I was extra careful on my second attempt, because of the first break, and the 2nd snapped with very little movement. I know pots are inexpensive, but I’d prefer not to open the guitar up and do the work to change it out when I found a much better way of solving the issue.


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