Monday, November 24, 2014
I sat down yesterday and made a demo of the recently finished koa concert, number 75.
And then later I grabbed a few more ukes and made this:
They might go in and out of tune but hopefully you can hear the differences, which were quite big at least in the sofa. My boy Johan was very excited and I might start using his newly fangled words next time I describe differences in sound!
Tuesday, November 11, 2014
The koa concert needs either the final "glaze coat", which so far has proven to be very difficult. Or a buffing with some polish compound. I might settle for the latter, that at least I know how to pull off.
The walnut tenor and the mahogany piccolo (sod secrecy; here it is) are sealed, almost pore filled and ready for some more shellac. I could do another session of pore filling but have yet to decide exactly what I'm aiming at with these two. Semi-filled pores might be just right.
Here's the concert. Rather cool figure.
I gave the piccolo and the tenor a few more coats. It's starting to build up nicely. I'll let it shrink back a couple of days, then scrape it with a card scraper and start the french polishing work. Up until now I have avoided oil, but will use it from now on. I use walnut oil instead of olive oil, my experience is better with the aforementioned. If I understand it correctly, it dries together with the shellac and gives a tougher finish. Be that as it may, I don't have to wipe any excess off between coats.
Sunday, November 2, 2014
Oops, we're in November already and October didn't see much action on this blog. Sorry about that, especially since I keep referring prospective buyers here.
The explanation (which is not an excuse) is I've been abroad in work and then I spent a wonderful week's vacation at the summer house. But the project there is building a sauna at the moment.
But things do tend to happen in the Argapa cave even if I don't publish enough. So tonight I'll show you some pics of the concert and of the bridge to the walnut tenor.
The koa concert is on the home stretch. I've given it its wash and build coats of shellac and scraped it back. My new method of doing these coats cut a week from finishing, at least.
Then some pics of that bridge. I showed you the one I made for the concert, this will have wings but I chose the same wood and the same tools. I considered ebony but that's so hard to plane and carve. And I thought this bridge would go nicely to the headplate veneer.
The only machining I did was cutting the slanted saddle slot on my mini table saw, before and after that it was only edge tools. No sandpaper or even files.
In this first pic you can see how I chisel away the end to make a wing. On the first end the grain direction was helping me, on the other end it was really tricky.
Here you can see the wing after paring for a few minutes.
Two curves snuck into the design while nobody was watching.
I love freehand carving. Never will I settle for a bridge design and crank out twenty at the time, it's so much more fun to let them grow into shape depending on the piece of wood and my mood.
I think the walnut shows some promise, don't you?
(What I haven't shown is the custom piccolo. It's taking shape but it's gonna be a surprise for someone. Anyway it got its fretboard glued today.)