Monday, March 5, 2012

Working Weekend - The Guitar Designer's Workshop

It doesn’t matter what day it is—sometimes I just like to be in the Workshop. The Sakura was starting to shape up, so I elected to continue working. I’m the boss anyway. Over the previous two days I’d been focusing on the detail work, like rebuilding and aging the Kluson tuners.

_Tuners

Using a combination of heat, solvent and dyes, the appearance of the buttons was now exactly what I wanted. All of the mold marks on the plastic and metal have been removed by sanding. This gives the tuners a friendly feel with a look that invites you to touch them. The color is beautiful and warm.

_Wiring Sakura

 Up next was the elecrical wiring. I installed the polished CTS pots from my stash of NOS parts. The switch is a refurbished 1950s CRL 3-way which I rescued from an old switchboard panel. You can identify its age by the brown phenolic wafer and the two patent numbers stamped on the frame. I also utilized the original ’50s straight-slot screws to mount it. From my supply of vintage Western Electric cloth-covered wire, I chose a length of yellow wire with a nice patina on it. The tone cap is a Jensen-made, oil filled from Steve at Angela. For the ground wire to the output I chose a small length of Western Electric multi-color—also cloth insulated.

 _Output Jack

 I like to use the Switchcraft stereo jack. The extra prong holds the plug in better and provides a more secure ground. I also use a dab of red Loctite threadlock on the threads to reduce the chance of the jack coming adrift from vibation. The hot lead is a black, cloth covered wire with a bit of shrink wrap to eliminate the possibility of a short from wear or vibration over the life of the instrument.

_Frontplate

 After all the wiring is complete and the engraved front plate is secured, I attached the bridge to get a look at the guitar. Then it was time to attach the back plate. 

_Backplate

 Here, I’m fastening down the rear plate using stainless steel screws. After waiting almost nine months for the engraving to be finished, this was an exciting moment for me. I had to conciously tell myself to breathe as I worked. 

_Routing Acre

As long as the weekend was on a roll, I decided to do the cleanup cut on the perimiter of Hell’s Half Acre. Using a hand-cut birch plywood template, the overarm router is used to cut the final shape after roughing out with a .750” bit. I use a .500" carbide downspiral bit to make the final pass to eliminate any cutter marks. The pickup routs and switch access are done at the same time. The neck joint is undersize and won’t be finalized until moments before the neck is fitted. This eliminates any problems with wood movement and ensures a perfect fit.

Not bad for a cloudy weekend. But now it’s a sunny and bright Monday. Maybe I’ll go for a walk in the woods with the dog.

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