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Shopmade Luthier Tools #19: Small size sound post setter

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Blog entry by Dave Rutan posted 03-27-2017 08:02 PM 1410 reads 0 times favorited 4 comments Add to Favorites Watch
« Part 18: Violin bridge jigs Part 19 of Shopmade Luthier Tools series Part 20: Neck Clamps for Violin, Cello, etc... »

I already own two violin size sound post setting tools which I purchased online. The other day I was setting a sound post in a less than full size instrument and I got the feeling I was stretching the limits of the tool. I got the post set successfully, but it entered my mind that a smaller tool might be handy for if I should have to work on a 1/4 size violin or smaller someday.

So today I went down into my woodshop, took a piece of 1/4 iinch flat brass and went to work with the grinder shaping the profile of the pick end and the hook end. I soldered on a cross piece for the hook because it needs to be able to push, pull, and tap the post into position. The semi-circle indents were formed with a rattail file. The pick end was formed by giving the bar a 1/4 twist and shaping the point like the one I already own.

This tool is about 3/4 size of the standard sound post setting tool and should serve me well when the need arises. For anyone who has no idea what the heck I’m talking about, here is a short Youtube video showing a sound post being inserted into a cello. The principle is the same as a violin, although the tools and instrument are larger.

A few pictures of my tool in progress:

See the other Luthier tools I’ve made. [link]

-- Ni faru ion el ligno!



4 comments so far

View Texcaster's profile

Texcaster

1266 posts in 1543 days


#1 posted 03-27-2017 10:50 PM

Nice work Dave. I’ve been following your luthier blogs, the enthusiasm is infectious. Well done!

This Chinese double bass post setter was $25 when the time comes.

-- Mama calls me Texcaster but my real name is Mr. Earl.

View Dave Rutan's profile

Dave Rutan

1662 posts in 2058 days


#2 posted 03-28-2017 02:13 AM



Nice work Dave. I ve been following your luthier blogs, the enthusiasm is infectious. Well done!

This Chinese double bass post setter was $25 when the time comes.

- Texcaster

Thanks. I’m glad I’m not just posting to myself. Thankfully I have not had to work on a Bass yet, though there are some in the shop. I have an extensive Watch list on eBay and as money comes in from book sales I make decisins as to what I need to buy next. The post setting tools for these instruments actually come in a set of 3:

From top to bottom you see the sound post setter, a sound post gauge (measures the length needed within the instrument), and a post retriever for when they are rattling around inside the instrument. I think my cello tools would work on a bass that isn’t full size, but eventually I’ll need to take the plunge on these.

I have a violin peg shaver and reamer headed my way currently as well.

-- Ni faru ion el ligno!

View johnstoneb's profile

johnstoneb

2690 posts in 2042 days


#3 posted 03-29-2017 12:13 AM

I am enjoying your luthier blog also. I also followed your dulcimer build and I hold you completely responsible for me building a four string mountain dulcimer and I am about halfway thru with a second one. I have ideas for a third also.

http://lumberjocks.com/projects/305514

-- Bruce, Boise, ID

View Dave Rutan's profile

Dave Rutan

1662 posts in 2058 days


#4 posted 03-29-2017 02:27 AM



I am enjoying your luthier blog also. I also followed your dulcimer build and I hold you completely responsible for me building a four string mountain dulcimer and I am about halfway thru with a second one. I have ideas for a third also.

http://lumberjocks.com/projects/305514

- johnstoneb

I’ll accept the blame for inspiring you. You do beautiful work.

-- Ni faru ion el ligno!

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