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Topic: A question on mechanical theory |
Roger Rettig
From:
Naples, FL
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Posted 9 Oct 2024 7:42 am |
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I cannot seem to assimilate all the detailed help there is out there (and for which I'm most grateful).
I am still having trouble with raising the 1st to G# on my RKL (also raising 7 and 2).
Like Ian Worley (he raises 1 and 2), my 1st string is in the middle-raise-hole on my LeGrande 111, and it's located in hole #10 on the B/C.
I'm not worried about stiffness of the pull, but I need a touch more travel.
If we count the changer raise-holes as 1,2,3 (one being further from the top of the guitar, 3 being nearest the top; this is with the steel standing on its legs!), would moving the rod to either 1 or 3 give me more travel - enough to get a solid G# note?
As you'll surmise, my question is born of my failure to grasp the simple physics.
My very-comprehensive setup (on both necks) is all working so well - all except that 1st string raise.
There's a nylon block that, theoretically, allows a great travel, but it's tough stuff and it refuses to yield to mere sandpaper! That's the simplest option, of course.
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Roger Rettig: Emmons D10, B-bender Teles and Martins - and, at last, a Gibson Super 400!
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Jim Palenscar
From:
Oceanside, Calif, USA
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Posted 9 Oct 2024 8:00 am
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| The furthest pull happens when the pull rod is closest to the changer axle in the changer and furthest from the cabinet at the bellcrank. With the all-pull Emmons guitars I've had to resort at times to taking a titch off the lever stop that's screwed to the rear apron to get what I was wanting on the RKL. |
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Roger Rettig
From:
Naples, FL
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Posted 9 Oct 2024 8:56 am
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Thanks, Jim.
How did you shave anything off that lever-stop? It's stubborn stuff!
But - it sounds as though I could get more 'raise' by moving from the 10th to the 14th at the BC, and by moving the rod further from the axle.
Edited: CLOSER to the changer-axle!!!
Appreciate you, as always!
_________________
Roger Rettig: Emmons D10, B-bender Teles and Martins - and, at last, a Gibson Super 400!
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Roger Rettig
From:
Naples, FL
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Posted 9 Oct 2024 9:47 am
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Mission accomplished!
Thanks, Pali!
It actually needs detuning a touch but, because of the acute angle of the rod, it's hidden the hex-tuner behind the end-plate. I think I can figure that out on my own.
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Roger Rettig: Emmons D10, B-bender Teles and Martins - and, at last, a Gibson Super 400!
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Larry Hobson
From:
Valley Grande (Selma) Al USA
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Posted 9 Oct 2024 11:10 am Mechanical theory
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| Uh. ? |
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