Carving spruce

After hollowing out the maple back, carving spruce is sinfully fun.  At this point, one can do amazing slices.

Nastiness will return while trimming the f-holes, with a knife, across hard-soft-hard-soft-hard-soft, but for now, the living is easy.

Arching, with lasers!

Down to scrapers on the back, cleaning up the arching, trying to blend in the channel around the edge, containing the purfling.  Lots of changes in grain direction to pay attention to.

Lasers used to be very exotic, but I bought one in a hardware store, used for leveling ceiling tile installation, among other things.  Pretty simple, and not sophisticated.  But it is another tool one can use to find the never-ending supply of bumps and distortions in ones arching.

Remodel

Sometimes, one gets the feeling that there is more to be had with a particular instrument.  I finished this one this past February.  It was an experiment, in that I left the plates fairly thick, trying to follow the graduation pattern of the Paganini violin, Guarneri del Gesu's "Cannone" of 1743.  For example, the center of the back was about 6 mm thick.  More typical is the 4 to 4.5 range, and some are thinner than that.

I played it for a few months, not completely happy with it, though I am one of those who never is quite happy with a fiddle, so I try not to be hasty, but give a fiddle some time to develop.

But, in playing it, I felt there was more sound quality to be had.  This past June, I pulled the top and took a little thickness off the top.  It wasn't as thick as I remembered, so the modification was minor.  Put it back together and continued playing it.  Certainly an improvement.

I played this fiddle for several tunes two Saturdays ago, at the Boise contra dance, in an ADAE tuning.  It rang pretty nicely on those tunes in D major.  But with all that "A", I noticed even more the tendancy for a bit of a wolf on the open A.  Easy enough to handle with a little practice, but why should one need to?

So today, I pulled the top and am taking some of that thickness out of the back.  A fair amount actually.  Not overly thin, but a significant proportional change for this fiddle. 

I am curious to see the effect it has.

Fingerboard and back.

Working down the underscoop of the fingerboard with gouges, thumbplanes, and finally scrapers.  Nearly no one sees this, but it's nice to get the board to a proper thickness.

Using a template to check the long arch.

Toothed-blades in the thumbplanes.  It helps avoid tear-out on the flamed maple, plus, and I find this more important, it is easier for me to see the arching when the wood is not so smooth.  Sometimes that figure, when it's shiny, makes you see things, such as dips or rises, that don't really exist.

When the toothed-blade work is fairly close, finish off with scrapers.

Still a bit more to go, but I'm done for the day.

Purfling

Purfling on a violin is typically a strip, black-white-black, which is just inside the edges of the top and back.  It's made of three pieces, black, white, black, which are glued together.

First one has to cut the grooves for the purfling.

And then the purfling is bent, cut and glued into place.

On the upper left of this photo, you can see some of the cut-offs of the purfling strips.  The glue will dry for a day, then I can continue cutting the outside arching for both of these plates.

Beginning the top

I joined the top a few weeks ago, but just this morning did I get around to tracing and cutting the outline.  After working on hard curly maple of the back, it sure is fun to slice out big curls of spruce.

About 20 minutes of work with a big #7 gouge and a large thumb plane can remove most of the overhead on the top.  I leave the corners big at this point.  It's easier to get them into shape when there's less thickness to worry about, and a split or break near the corner is less likely to be a problem. The plate is about 6 mm thick on the edge at this point in my process.

Taking a break to tend to a few other shop projects, I came back to it this afternoon for about an hour.  Cleaned up the curves a bit, took the edges down to about 4 mm thickness, and started the arching.

Refining the outline.

Getting down to smaller tools, sharper tools, taking smaller cuts.  Getting the outline closer to the final shape.  Corners are always a challenge.  Starting to bring the arching into shape, comparing them to arching templates that I made out of paper and cellophane tape.