GS Mini 19

Thursday, March 13th, 2014

You Are Getting Hungry . . .

First, a couple of photos to make you salivate . . . My sister, mom, and I went to a very expensive steakhouse last night (on a gift certificate from my brother & sister-in-law). My mom and I had prime rib, and my sister just had to try the Australian Tajima Wagyu beef, pictured below. (Would you believe $110 just for that steak cut below?????)

For dessert, we shared their famous "Oh!" dessert --- there's a chocolate sphere with gelato, raspberry cherry coulis, milk crumble, and burnt malt gelato. They pour some hot chocolate creme onto the top of the sphere, and it slowly collapses, revealing the goodness inside.... Yummmmmmm..... (It's awfully pretty, too --- you almost hate to ruin it by eating it.)




Enough of that. Back to the building now . . . .

Gluing On The Top

Last night, after we got back from the restaurant, I worked on fitting the top to the rims. For some reason, this one didn't go as easily as the back-fitting. I kept having to readjust the notches and brace ends, until the top finally fit into the pockets and my neck and tail centerlines were aligned properly.

But I finally did get it to fit well, and I just now have it glued and clamped in the go-bar deck:



Still Thursday, about 2:00 p.m.

Houston, We Have a Soundbox!!!

Thought I'd mix things up a bit and provide a video instead of the usual photos & text.






Friday, March 14th, 2014 --- HAPPY PI DAY!!!!

Trimming the Overhang

What I needed to do next was to trim the overhanging edges of the top and back; they extended about 3/16" beyond the sides and needed to be routed flush to the sides.

(1) This morning, I was ready to go. Before I began, I used a small plane to reduce the overhang to about 1/8" from the sides, to make it easier on the router.

To do the routing (and to rout the binding channels later), I have decided to use my Stew-Mac "TrueChannel" binding router jig, which I just purchased last year. Before I used it on this guitar, though, I needed to make a larger body cradle (the guitar-shaped platform with adjustable support blocks). That was easy enough, as all I had to do was cut out a form slightly smaller than my GS Mini and drill some holes in it for the support blocks. I did this last night.

The first thing I needed to do was to set the guitar soundbox in the cradle and adjust the blocks up or down, so that the sides were perpendicular to the worktable. Because of the taper of the body (taller at the tail end than at the neck end), you have to set the blocks to different heights, in order to do this.

Here my neck end is perpendicular . . . .

and so is the tail end . . . .




(2) Next, I marked on the back (and later on the top) the direction of cut for the router. This is important so the routing doesn't catch the grain and tear out the wood. Basically, you start at the top of a "hill" and travel down to the "valley"; that way you aren't cutting into the grain.


(3) When it was time to do the top, I also had to be careful not to rout in the area of the arm bevel and where I had the truss rod cutout in the side; to mark those areas to avoid, I used masking tape.




(4) Here is how the router jig is used in action. I'm not actually routing here, of course --- when I do the routing, I am simply holding the guitar box in the cradle and moving it into and along the flush-cutting router bit with the bearing. The router carriage holds the router perpendicular to the table (and, thus, to the guitar body) and glides smoothly up and down on the post (so it can adjust to the taper of the body).


(5) Here is a closeup view of the router and flush-cutting bit and bearing. The white plastic you see rides along the top of the guitar body, and the router bearing registers along the guitar side. Thus, the router bit cuts the overhang flush to the side.








Now it's time to bend some binding and move on to routing the binding/purfling channels --- stress-out time!!!