Lancillotto ha scritto:  

credevo dipendesse dagli ultimi tasti "semplicemente" un poco altini.

gugu ha scritto: 

uuuh... non vedo l'ora di vedere scritto "si chiude" con più di otto lettere!!!

Citazione:

Hi Antonio

I’m generally wary of recommending people modify their own frets. But, if you’re working on just the last two or three, IT’s a little less worrying. If you mess them up, they’re not places that are played as often so IT impact is somewhat less. Somewhat…

I don’t have the scope to go into how to perform a fret level on the whole neck in an email reply, I’m afraid. I’d ask that you do some research if you’re planning on doing this yourself. However in this circumstance, we do have an option other than levelling all the frets.

I’ll try give some thoughts and tips:

You can handle each fret individually that that will probably be ok. Rather than trying to level them all perfectly with the other frets, I’d probably lean towards advising you ’step’ each fret down just a little lower than the one in front. So, the 18th fret would end up just a tiny bit lower than the 17th, the 19th a tiny amount lower than the 18th, and the 20th lowest of all. I’m only talking about small fractions of a millimetre each. Maybe 0.1–0.2mm.

Because we’re talking about a small number of frets right at the end of the neck, this should be a valid way to proceed.

You can probably achieve this just with some sandpaper on a hard backing or a with a file. Don’t use sandpaper coarser than 220-grit. Mask off the fingerboard and anything else you don’t want to scratch. After lowering, use a number of finer sandpapers to remove scratches from the frets. Go through at least 320, 400, 600, 800-grits. Ideally finer if you can.

What you’ll end up with isn’t a super precise fret levelling but, because they’re at the end of the fingerboard, as long as each is stepped down compared to the previous fret, they should play cleanly. An entire fret level will certainly be a cleaner and more ideal job but, if done carefully the approach above can work for you.

Of course, I’m basing all this on the assumption that these high frets are the issue but, from what you’ve said, that does seem likely.

Hope this all makes sense.

• Ripristinato funzionamento del trussrod in precedenza apparentemente a fine corsa e durissimo da ruotare (il rielef era eccessivo e non era possibile correggerlo).
  
• Rimossa la zeppatura (shim) esistente che, non coprendo l'intero tacco del manico, lo aveva lievemente incurvato nella parte finale.
  
• Introdotto un nuovo shim realizzato ad-hoc con un differente angolo di inclinazione.
  
• Accorciata una vite del ponte che impediva la totale escursione della selletta del SI basso, impedendone di conseguenza la corretta intonazione.
  
• Rettificata la parte finale della tastiera al fine non solo di correggere il problema che avevo segnalato, ma anche di ottenere una action più bassa.
  
• Regolata finalmente l'action, con tutti i tasti perfettamente oeprativi, a non più di 2 mm! Prima non riuscivo a scendere sotto i 4, rendendo lo strumento insuonabile.
  

gugu ha scritto: 

uuuh... non vedo l'ora di vedere scritto "si chiude" con più di otto lettere!!!