sunnuntai 14. syyskuuta 2014

Working the neck

The guitar neck is a major wood work. That's what the Cumpiano book told, and I agree. Many different phases in the build, and quite a few jigs to make to get everything in place. Here are pictures of my neck process, short of fretboard, fretting and actual neck shaping. More of those hopefully tomorrow.

Stacking the heel. When the grain direction is the same
in each layer,  it's very hard to tell by a quick look that the
heel was not made of one piece with the neck

Keep 'em straight edged

Determining the neck angle with fingerboard

Copying the body-to-fingerboard angle with a
handy almost-a-straightedge-tool

The angle is copied at the neck heel...

And the disc sander table is adjusted accordingly...

…like that!

Truing the neck joint area

Jig for drilling the holes for neck attachment threaded bolts 

Don't go too deep!

Twist them in!

Deep enough to sand some curve for the joint

The same jig is used to drill holes to the soundbox

First fit!

Some tedious sanding with very short strokes and lots of down pressure required.
If the neck tilts during sanding, the joint fit is lost.

Checking the right angle

Jig to route channels for under the fretboard alignment bars

I fill these cavities with mahogany that is glued in the neck
 side and attached with screws in the guitar side.
This increases rigidity and enhances sustain remarkably.
And gets me rid of the mortice and tenon routing of the
whole neck heel length, which makes it a lot easier to fit the
neck with just sanding paper.

Routing slots for graphite bars. An extra neck blank
doubles as a fence for router.

No future twisting expected!

Threaded bolts are installed in the mahogany bars,
which are later glued to the underside of the fretboard extension.
This allows a totally glue free installation (and pain free removal) of the neck


Gluing on the head plate veneer with thin maple sandwich
Headstock shape
Already looking guitarish
A jig to make the tuning post holes for slot-head guitar. Don't drill too deep!
Routing the string slots with a simple jig and a guided router base
Tasmanian blackwood veneer
This is the underside of the headstock slotting jig
the center dovel centers the slot for both sides
A test run with a set of extremely bad tuners that will
never go to any guitar but look ok (former Blueridge guitar machines)

Next up: Fingerboard, fretting and neck shaping. Stay tuned, Internet!

2 kommenttia:

Steamsoup kirjoitti...

Makeeeta stuffia kaverilla! ihan professionaalia jälkeä verrattuna nuista ekoista tohon viimeseen! laavasin koko blogisi lävitse kun stekkailin että voiko tässä oulu kylän pahasessa rakentaa missään kitaroita :D! ite kans jonkin verran harrastelen tätä itse visuaalista puolta eniten että teen kaiken maailman modauksia resuista kitaroista :)

Janne Koskela kirjoitti...

Tuuhan joku päivä käymään ja kahtomaan paikan päälle niin turistaan projekteista. Koko blogin läpilukeminen on kyllä hatunnoston arvoinen suoritus!