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4 String Dulcimer Build #7: Sound board

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Blog entry by Dave Rutan posted 11-20-2016 03:12 AM 784 reads 0 times favorited 9 comments Add to Favorites Watch
« Part 6: Frettin' over the finger board Part 7 of 4 String Dulcimer Build series Part 8: All but finished »

[Above] On the reverse of the sound board piece, I measured out and cut the gap that will help the sound from the fingerboard travel into the sound box. I drilled holes at each end, leaving a ‘bridge’ in the middle for strength and cut it out with my jig saw. This area is hidden by the finger board, so I’m not concerned about blowout.

[Above] Then I marked for the sound holes. I drilled two round holes in the upper half and traced out and cut two birds in flight on the lower half. At least I hope they look like birds in flight. At this point I’ve also temporarily attached the sound board to the box with two countersunk screws.

[Above] With the top temporarily attached, I used a flush trim bit to even up the top and bottom with the sides. The picture above was not taken after a blow out and a brilliant repair to the top—really it isn’t. Nothing to see here.

[Above] After sanding the top, I’ve located and put tape to show where to glue the fingerboard. I weighted it down with socket wrench sets and a tin can of ‘misc. hardware items’.

[Above] While the glue was drying I added my labels and maker’s mark so that they will be visible through the sound holes.

[Above] And finally I glue the sound board to the body. And I discovered that all my spool clamps are like 1/4 inch too short! On the bright side, that meands that this dulcimer is deeper than my first, so it should have a different sound. (Like have 4 strings instead of 3 and being a different shape and made of different wood wouldn’t cause that!)

That just leaves sanding, finishing and stringing her up. ...And the case!

-- Ni faru ion el ligno!



9 comments so far

View Oldtool's profile

Oldtool

2390 posts in 1765 days


#1 posted 11-20-2016 12:37 PM

Looking real good, nice work.

-- "I am a firm believer in the people. If given the truth, they can be depended upon to meet any national crisis. The point is to bring them the real facts." - Abraham Lincoln

View CFrye's profile

CFrye

9154 posts in 1414 days


#2 posted 11-20-2016 12:58 PM

Dave, I know only what I’m learning here about musical instruments. Does the inside have any finish on it?

-- God bless, Candy

View Dave Rutan's profile

Dave Rutan

1537 posts in 1762 days


#3 posted 11-20-2016 01:06 PM



Dave, I know only what I m learning here about musical instruments. Does the inside have any finish on it?

- CFrye

No finish on the inside. I can’t say what guitar makers do, but I don’t think even violins get finish on the inside being as they are lacquered after assembly.

-- Ni faru ion el ligno!

View Patrick Jaromin's profile

Patrick Jaromin

394 posts in 3406 days


#4 posted 11-20-2016 04:36 PM

Same with guitars – no finish on the inside.

-- Patrick, Chicago, IL http://www.TenonAndSpline.com/blog

View CFrye's profile

CFrye

9154 posts in 1414 days


#5 posted 11-20-2016 05:38 PM

...and the reason for that?

-- God bless, Candy

View Dave Rutan's profile

Dave Rutan

1537 posts in 1762 days


#6 posted 11-20-2016 05:46 PM



...and the reason for that?

- CFrye

I’m thinking it has to do with inaccessibility to the interior and/or the ease of repairs if the inner surface has no finish on it.

Occasionally I watch videos about lutherie/instrument repairs. It’s basically a branch of woodworking.

-- Ni faru ion el ligno!

View helluvawreck's profile

helluvawreck

24820 posts in 2441 days


#7 posted 11-20-2016 07:47 PM

This dulcimer is coming along nicely.

helluvawreck aka Charles
http://woodworkingexpo.wordpress.com

-- If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away. Henry David Thoreau

View Rick M's profile

Rick M

8637 posts in 1954 days


#8 posted 11-21-2016 08:09 AM

Coming along nicely Dave.

-- http://thewoodknack.blogspot.com/

View bhuvi's profile

bhuvi

97 posts in 116 days


#9 posted 12-01-2016 02:13 PM

-- Do NOT click links. Spammer in the process of being removed.

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