guitar intonation & setup by doug hunt

31

Upload: cyrah

Post on 05-Jan-2016

82 views

Category:

Documents


10 download

DESCRIPTION

Guitar Intonation & Setup By Doug Hunt. Guitar setup on your new guitar is an iterative process that will take you approximately an hour. Additional time will be needed for nut and string retainer installation Each manufacturer sets the scale length distance Gibson 24.75” - PowerPoint PPT Presentation

TRANSCRIPT

Page 1: Guitar Intonation & Setup By Doug Hunt
Page 2: Guitar Intonation & Setup By Doug Hunt

Guitar setup on your new guitar is an iterative process that will take you approximately an hour.

Additional time will be needed for nut and string retainer installation

*Each manufacturer sets the scale length distance

*Gibson 24.75”

*Guitarbuilding.org kits / Fender / PRS / Taylor 25.5”

Page 3: Guitar Intonation & Setup By Doug Hunt

1. Install string nut2. Rough in bridge saddles3. Install strings4. Adjust string heights5. Tune open strings EADbge6. Check string lengths at 12th fret

(eadbge one octave higher)7. Repeat steps 4 & 5 as needed

Page 4: Guitar Intonation & Setup By Doug Hunt

*The nut has a burr on the bottom edge, making it wider than 1/8”

*Sand the nut thinner to fit the nut slot

*Ideal fit = won’t fall out

*Clean the nut slot out so it is free of finish and glue

Page 5: Guitar Intonation & Setup By Doug Hunt

*Shims may be needed beneath the nut to raise the nut up if the strings touch the first fret

*Evergreen strip styrene .125 wide.

Page 6: Guitar Intonation & Setup By Doug Hunt

*Measure 12.75 from 12th fret to little e string to start (25.5 from face of nut to face of saddle)

*Stagger saddles 1/32” as shown for “rough-in”

*D & B about the same distance

*G & A about the same distance

E

A

D

G

B

e

25.5” to face of nut

Page 7: Guitar Intonation & Setup By Doug Hunt

*There are several methods to wind strings around tuning machine posts

*Simplest is to wrap starting at the top of the post and work down

Page 8: Guitar Intonation & Setup By Doug Hunt

*Unwound strings=approx 5 or 6 winds

*Wound strings, less

*D = 4, A = 3, E = 2 winds

*Leave enough extra string to wind around the post

*Pull taught, then back up for the winds

*Do not kink the strings

Page 9: Guitar Intonation & Setup By Doug Hunt

*Bar increases “break angle” at nut

*Eliminates buzz, side-to-side motion at the nut that results in sitar-like effect

*Loosen strings for installation

Page 10: Guitar Intonation & Setup By Doug Hunt

*Standard Tuning big to little…

E, A, D, g, b, e

Page 11: Guitar Intonation & Setup By Doug Hunt

*For tuning stability, tug new strings to stretch them. Tug about as much as you could stand to have your hair pulled, just to ouch.*This also causes the windings to slip a little against each other and lock in place.*Repeat tug and retune several times for larger strings.

Page 12: Guitar Intonation & Setup By Doug Hunt

Neck relief is where you have some intentional concave curvature to the neck

We do this after tuning open to ensure the neck is experiencing typical forces of string tension

It allows strings to vibrate without buzzing against frets

Page 13: Guitar Intonation & Setup By Doug Hunt

*1st fret and 17th fret (fret where neck meets body)

*.010” gap between strings and 8th fret

Information from http://support.fender.com/manuals/instruments/Fender_Guitars_and_Basses_(1992-1994)_manual.pdf

Page 14: Guitar Intonation & Setup By Doug Hunt

*Use a notched straight edge

*.010” - .015” gap between the notched straight edge at fret 8 or 9

*Can be done with or without strings

Information from http://support.fender.com/manuals/instruments/Fender_Guitars_and_Basses_(1992-1994)_manual.pdf

Page 15: Guitar Intonation & Setup By Doug Hunt

*As you look from the bridge of the guitar toward the string nut……

*Turn truss rod adjuster CCW to lower the middle of the neck

*Turn truss rod adjuster CW to raise the middle of the neck

Page 16: Guitar Intonation & Setup By Doug Hunt

*.020 at the 1st fret

*Shim behind nut if strings too low

*File slots deeper if strings too high

Page 17: Guitar Intonation & Setup By Doug Hunt

.080 at the 21st fret…less on the treble side

Set saddles in a 12”R arc

Use allen wrench in saddles

Page 18: Guitar Intonation & Setup By Doug Hunt

*Set two E strings, and make the other four too high on purpose.

*Once satisfied with the two E strings, lower the other four to just touch the understring radius gauge.

Page 19: Guitar Intonation & Setup By Doug Hunt

*Getting the guitar to play in tune with itself

*Should be one octave from open string to 12th fret

Page 20: Guitar Intonation & Setup By Doug Hunt

*Intonate after tuning open and setting neck relief to ensure the neck is experiencing typical forces of string tension

*Adjusting the truss rod requires readjusting the saddles

*(overall length is changed)

*Detune string before moving saddle!

Page 21: Guitar Intonation & Setup By Doug Hunt

•Use Scope software•12th fret to bridge saddle•Sharp = string too short, turn CW to lengthen•Flat = string too long, turn CCW to shorten

12.75”

Page 22: Guitar Intonation & Setup By Doug Hunt

*Any time you move the bridge saddle, the open string must be retuned

*Then re-check the 12th fret to see if it is an octave higher, or flat, or sharp.

*Repeat

Page 23: Guitar Intonation & Setup By Doug Hunt

*Guitar neck will change shape with seasons

*Guitar will “settle in” over the next 3-6 months

*Adjustments will be necessary

Page 24: Guitar Intonation & Setup By Doug Hunt

http://www.zeitnitz.de/Christian/scope_en

Page 25: Guitar Intonation & Setup By Doug Hunt

*Tune the guitar, open strings, using SCOPE software

*E - 82Hz

*A - 110Hz

*D - 147Hz

*g - 196Hz

*b - 247Hz

*e - 330 Hz

Page 26: Guitar Intonation & Setup By Doug Hunt
Page 27: Guitar Intonation & Setup By Doug Hunt

Choose Frequency Analysis display no peak hold

Page 28: Guitar Intonation & Setup By Doug Hunt

Set Zoom slider to 20 and right-hand scroll all the way to the left to see frequencies in the range of the guitar

Page 29: Guitar Intonation & Setup By Doug Hunt

Set Band pass frequency filter to isolate desired frequencies, otherwise you will see many harmonic overtones!

Adjust cut-offs for each string and octave

Page 30: Guitar Intonation & Setup By Doug Hunt

1. Install string nut2. Rough in bridge saddles3. Install strings4. Adjust string heights5. Tune open strings EADbge6. Check string lengths at 12th fret

(eadbge one octave higher)7. Repeat steps 4 & 5 as needed

Page 31: Guitar Intonation & Setup By Doug Hunt

This concludes guitar setup

[email protected]