Brian's Guitar from Conception to Birth or How to Build a Guitar in 62 Easy Steps!
21 Add Some Inlays
Inlays on a guitar add that little extra touch letting everyone know that you know what you’re doing. But I’ve never done an inlay before in my life, so I really don’t know what I’m doing. We picked out a simple and sleek design (plagiarized from a McNaught Guitar) that let us add some inlay, but wasn’t some crazy “tree of life” complexity that had a thousand intertwining pieces. Transfer the design to the fretboard and score the edges. Typically you would cut the pieces first and score around your pieces. Since everything in our pattern is square with straight lines, I scored first and fit the pieces to it later.
 
If you can’t see your scored lines very well, you can fill them in with some chalk. I picked up the nifty Dremel router base from StewMac along with a few very small router bits which helped out tremendously. Set the depth on your router to leave the inlay exactly flush with the surface. Plunge your router into the field by wiggling it slightly as you penetrate the wood. Take small passes until you’re very close to your scored lines. Since my lines were straight, I registered a chisel into the score and lightly tapped the last bit out. If you’re design has flowing lines, you’ll have to complete the cavity with your router or some very small chisels. Clean up the bottom and corners of the cavity with a small chisel. Repeat the process until your whole neck is completed.

Mark dimensions onto your inlay material, in our case it was Abalam (an abalone-laminate product). I made up a cutting jig which fully supported the inlay material. It even had a small fish tank pump and hose to gently blow the dust away as I cut. Make your cuts very close to the line, but still with a little room to clean up the edges. I used a jeweler’s saw with a #2 blade in it.
 
You can grind up to your line more aggressively with a Dremel tool equipped with an abrasive disk clamped to your workbench. For fine tuning, clamp a sanding block into your vise with some 150 grit. Sand a little then test your fit. You want the piece to just squeeze into the hole. If a piece doesn’t fit right, cut another one; it doesn’t take that long.

 
Cut and fit all of your pieces first, then glue them in. Cyanoacrylate glue (also called “CA glue” or “super glue”) works great. But, dude, fork up the $5 for the debonder while you’re at the store looking at it. Your hands will be close to the work, and you don’t want to stick you fingers together on a Saturday night and have to wait until Monday to get back to the store. Put a drop or two of glue into the bottom of the cavity and spread it around with a toothpick. Don’t use too much glue; a thin layer will do. You don’t want the glue oozing out all over the place. Press the piece into the cavity. If you cut your pieces right, the side tension will hold the piece in place until the glue dries. If you have a loose piece or two, use some spring clamps to hold them down. Let the glue dry for at least an hour, preferably two.

 

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