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String spacing for 6-string tenor uke
http://mowrystrings.luthiersforum.com/forum/viewtopic.php?f=10102&t=12934
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Author:  Ricardo [ Mon Jul 23, 2007 12:12 pm ]
Post subject: 

Does anyone have string spacing at the nut and saddle for a six string uke?

Author:  David Collins [ Mon Jul 23, 2007 12:38 pm ]
Post subject: 

Tenor or baritone, and are you making one for 6 individual strings or paired
courses? The six string ukes I've seen have had paired courses,usually on
the first and third strings. In this case the width and spacing would probably
only be nominally wider (1/16"-3/32"ish?) than a standard four string.

Author:  David Collins [ Mon Jul 23, 2007 12:39 pm ]
Post subject: 

Tenor...


Sorry, I guess by the time I had read the message I had already fogotten the
title.

Author:  Ricardo [ Mon Jul 23, 2007 12:49 pm ]
Post subject: 

Yes, I was thinking of pairing the 1st and 3rd.  So are these paired strings spaced 1/16-3/32 apart?  Will I need a wider fretboard?  How about bracing.  Will the standard bracing handle the additional 2 strings? The bracing I use is about 1/4" wide and 3/8" at the high points.

Author:  David Collins [ Mon Jul 23, 2007 1:31 pm ]
Post subject: 

No, the strings wouldn't be set near that far apart within a course, but if
you have .035" thickness strings with an additional .050"-.060" spacing
within a course, that would add about 3/16" to the total width. In practice
most designs with paired courses however do not try to keep the full
between course spacing the same as single course instruments. It would
often end up in a neck that would simply feel to wide, and awkward with
the exaggerated center to center distances between courses.

I've never bothered to measure or calculate the differences between
paired and single course spacings, but it should end up as a compromise
between the two. Perhaps 1/3 to 1/2 of added course width should be
added to the neck, bridge and spacing? This would add about
1/16"-3/32" to the overall spacing. Of course I'm guessing and pulling
these numbers from a very loose mental image, so don't hold me to it.

I don't have any real measurements, but if you don't have a specific
request or preference for a style I would look for an accepted standard.
Most manufacturers and dealers will have photos posted online that
should be easy enough to at least approximately scale.

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