Spiral Bushing!

September 11, 2008 at 5:03 PM

Learned a fun trick to resize a blown-out or over-reamed peghole yesterday. Often such a hole is straight bushed, meaning you carve soft maple to a taper that matches the peg and push it through, carving away all but that which sits within the pegbox walls. Then you redrill the hole through the fresh wood plugs and start reaming again.
The spiral bushing was much more fun.
A 2 or 3 mm shaving is taken off of soft maple, or poplar, which was easier to handle, soaked, and then rolled like a cigarette around a taper, full of glue. Then you press this curled up wonder through the peghole and expand it turn by turn, letting it dry every few minutes before twisting it tighter.
The result- less original wood taken away, a peg which was just a touch too far in is adjusted, and the pegbox is actually strengthened against possible breaks (especially at the A peg, as I'm sure you've seen). The grain of the shaving points out from the center of the new bushing in a spiral, pressing against the pegbox wall in all directions.
But the glue gets every damn place, let me tell you.

From Dottie Case
Posted on September 11, 2008 at 7:35 PM

Maybe a rap would help me understand?? :)

From Christopher Jacoby
Posted on September 11, 2008 at 9:10 PM

As in a breakbeat with rhymes over it Rap?

From Alison Little_Hales
Posted on September 12, 2008 at 10:31 PM

I was waiting for something else to download when I decided to fill the time reading your blog.Glad I did.Players do often take their instruments for granted or at least what it takes for their up-keep.The application of some science /tech. to the problem was fascinating.Enjoyed your enthusiasm.Will take a second look as to how my violin is made.

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Spiral Bushing!

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