Portland Guitar Co.

Designing and Building
Custom Handcrafted
Guitars, Ukuleles
and Accessories


Portland Guitar Co. | Portland Oregon | Contact Jay Dickinson-503.245.3276 | jay@portlandguitar.com


Home | Orders & Sales | Photo Gallery | Current Builds | Finished Builds

Rosettes & Marquetry |Shop Tour | Biography | News

Engineered Braces | Tilt Action Neck | Split Saddle Bridge | Split Saddle Nut

 

Portland Guitar Pretty Good Intonation (PGPG) System

Short Version | Introduction | Intonation Errors | Analysis | PG Approach | Comparisons | Conclusion


Finished Build

Orchestral Model Cutaway For Dan I.

OMC 1.5.32

Jacaranda Body
Sitka Spruce Top
Mahogany Neck
Ebony Fretboard
Bloodwood Binding

Page 7


(248) 29-July-2010
Now the guitar goes into the spray booth where I will apply the water borne lacquer I use in an iterative process of  'spray it on, fix the revealed defects, sand off the high spots, spray it on...'  I will repeat this process until I am happy that the finish is as perfect as I can make it.

(249) 29-July-2010
I mount the guitar on a big 'popsicle stick' and use a rotating stand to give me easy access to all of the parts of the guitar.  The balloon keeps the lacquer out of the sound hole.  

(250) 29-July-2010
When the lacquer has cured for about a week I use a tail fixture that allows me to string the guitar up without gluing the bridge in place.  This allows me to find the optimal position for the saddle to insure proper intonation.

(251) 29-July-2010
I make a first pass at the nut using individual dimensioned files to creat the slots for each string.

(252) 29-July-2010
Using a tuner to measure the fundamental and the 12th fret frequency I adjust the position of the bridge until I am satisfied that the intonation is as close to correct as possible.

(253) 29-July-2010
I then clamp the bridge in place and using a very sharp blade I scribe around the perimeter of the bridge.

(254) 29-July-2010
I then very carefully remove the lacquer around the inside perimeter of the scribe line.

(255) 29-July-2010
I finally use my small router to remove the remainder of the lacquer from the footprint of the bridge.

(256) 29-July-2010
With the lacquer removed the bridge will be able to make a good bond to the top of the guitar.

(257) 29-July-2010
I use a set of corner stays to insure the bridge will not move around when I am gluing it in place.  I want to make sure the bridge remains precisely positioned when it is glued in place.

(258) 29-July-2010
I have a special set of clamps and a wing press to glue the bridge in place.

(259) 29-July-2010
After the glue has set and dried I drill out the bridge pin holes.

(260) 29-July-2010
And then I string up the guitar and set about making all of the fine tuning adjustments that a new guitar requires.  

(261) 29-July-2010
A few details include making a truss rod cover.

(262) 29-July-2010
And the strap pin that covers the Tilt Action Neck adjustment hole.  The strap pin can be screwed out and a hex nut inserted nto the hole to adjust the neck angle.

(263) 29-July-2010
And an ebony tail pin finishes the guitar.

(264) 29-July-2010
Dan asked for a set of buffalo horn bridge pins... very attractive.

(265) 29-July-2010
Finally Dan asked for a wood pick guard.  I have several types of wood to choose from.  In this picture the guitar gas no pick guard.  Pictures 266 to 271 show the variety of woods he will get to choose from.

(266) 29-July-2010
Mozambique Ebony... I think.

(267) 29-July-2010
Birdseye Maple

(268) 29-July-2010
Brazilian Rosewood

(269) 29-July-2010
I have lost track of what this wood is called.  It has a very attractive flame to it though.

(270) 29-July-2010
Figured Sapele

(271) 29-July-2010
Cereje Ira

(272) 29-July-2010
A few quick pictures of the guitar... left side view.

(273) 29-July-2010
The back

(274) 29-July-2010
Front left

(275) 29-July-2010
Front right.