Fret Slot position accuracy?

Wood type -- slotting -- contouring -- fret installation
Kevin in California
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Re: Fret Slot position accuracy?

Post by Kevin in California » Mon Jun 16, 2014 6:02 pm

Here is the set up.
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ken cierp
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Joined: Tue Dec 13, 2011 11:23 pm

Re: Fret Slot position accuracy?

Post by ken cierp » Mon Jun 16, 2014 6:27 pm

Or instead of the $40 LMII two scale template you could get the two separate KMG templates (both for) for $22 --exact same ones we use for our production operation -- just a thought. Kevin you still need to add a clamp to that setup (voice of experience) the stabilization will be a quantum improvement!

Kevin in California
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Joined: Mon Dec 19, 2011 4:19 pm

Re: Fret Slot position accuracy?

Post by Kevin in California » Mon Jun 16, 2014 7:42 pm

Ahhh, Ken you have a better deal!
My miter box is screwed down onto the bench. Nothing moves :)

ken cierp
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Re: Fret Slot position accuracy?

Post by ken cierp » Mon Jun 16, 2014 8:43 pm

Clamping the board and template to the miter box is the magic -- try it you'll like it.

Kevin in California
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Re: Fret Slot position accuracy?

Post by Kevin in California » Tue Jun 17, 2014 10:59 am

Ah so......... I will try it :)

Herman
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Re: Fret Slot position accuracy?

Post by Herman » Wed Jun 18, 2014 11:48 am

Jim, about the cents: It refers to the distance between two semitones, and 1 cent is 1/100 of the distance.
At the first fret 1 cent would be about 0.014",
but at the 12th fret 0.007". So up the neck it is more critical.
Herman

Jim Ball
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Re: Fret Slot position accuracy?

Post by Jim Ball » Wed Jun 18, 2014 12:29 pm

Herman wrote:Jim, about the cents: It refers to the distance between two semitones, and 1 cent is 1/100 of the distance.
At the first fret 1 cent would be about 0.014",
but at the 12th fret 0.007". So up the neck it is more critical.
Herman
Thanks. That's good information! I knew a cent is 1/100th of a semitone, but did not know how that translated into linear distance on a fingerboard. None of the fret slots I cut on the mountain dulcimer fingerboards are off the ideal position line by more than 0.015" - 0.020" I think I can improve on that with practice, but I doubt I will ever get "perfect" without machine-made templates and miter systems. Even then, it will not be "perfect," but only as good as the accuracy of the system and my use of it.

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