Acoustic Guitar Construction in the small shop -- Kenneth Michael Guitars LLC

Information, ideas and help for those constructing scratch built acoustic guitars or acoustic guitar kits - © 2017
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 Post subject: Re: Zero Glide nut
PostPosted: Mon Sep 18, 2017 11:56 pm 
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Joined: Tue Dec 13, 2011 7:44 pm
Posts: 4989
Here's a few pix of my 'zero-glide' process. Works surprisingly well.

First I use a poly cutting board from WMart - it is 3/16" thick, which is the measurement I want for my nuts and saddles. I just pop a nut into the slot in the board, and sand away until it is flush - done.

I then put the nut into the nut slot, and use a sharpened dowel's point, which I've made to be flush with the bottom of the dowel, blackened with a Magic Marker to ink the point, then draw 2 lines on the nut - a line like we would draw with the half-pencil, on the same plane as the frets, and then a line just at the fb end. I want to cut a slot that takes out the lines and the material between them, just deep enough to fit 1/2 of the fret (no tang). That is done on the Dremel, and I use a little homemade fence with the Fret press caul for the fingerboard radius (16") clamped under it to use as a template. Once it is set up, it's a snap to route out the ledge for that part of the fret.

The other part of the fret lies on the fb, of course, plus I do two things: first I use the Fret Barber to remove all the barbs and part of the tang, to get it nice and thin; then I remove a sliver of the fb, just the size of the tang. Then I temporarily place the nut, slide the fret onto the nut 'ledge' and the tang into its tiny recess and the rest of the fret onto the fb and, with always a little tweaking, that part is done.

Now I have to shape the nut and cut the string guides, which is a cinch for zero-fret nuts, polish it up and done.


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