Official Luthiers Forum!

So I'm diligently puttering away on my first acoustic build and I've got a question;
What's the normal amount of wood left inside the rosette, hole side?

I'm making my rosette out of different wood species that were laying around, and I'm down to
expanding my route a smidge to allow for binding so it will be hole cutting time pretty soon.






This acoustic stuff is all new to me, but thankfully I opened my Dremel Trio case and there was
a circle attachment that came with it. Go me! Lots to do still, of course;

Eric : I leave .125" all around. For 4" sound hole ------4.250" inner diameter on rosette. Of course, nothing carved in stone. To me it's more a visual design decision as compared to structural.
Tom

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A person who has never made a mistake has never made anything!!!

Thanks, both. I thought long and hard about using crushed shell and epoxy, but I just couldn't get my head wrapped around how I would
protect the rest of the top, mainly right at the edge of the rosette. Maybe the next build.

Hey, I'm actually making a circle! Go me!


Started sanding it down last night;

I added a filler piece on top of the Rosette that's still to be taken down flush;

I'm using Acetone-binding goop for glue, hope that's not a bad idea. The last pic is where I'm filling
a gap here and there. Hopefully tonight I'll be able to clean it up and I can get a real good look
at what I've done, but I guess it's not too bad for a 1st time.

Looking good! One suggestion though, be careful with that metal clamp! Put a piece of wood, cardboard, cork, etc, under that metal piece, or you'll end up with a circular dent that is so much easier to avoid than to fix!

Having made my fair share of such dents, I know cringe when i see such a clamp on soft, pretty wood!

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Phil

http://www.oleninstruments.com

"Those who tilt at windmills are only considered insane by those who can't see the dragon."

Good tip, and thanks, but in that case it actually wasn't serving as a clamp I was trying to see how far it would reach for later.

Well, it's not perfect, but it's done and one less thing for me to stress about;


Still lots of work to do there, but now I can move on to thicknessing this top and start gluing some braces. Heck, before you know it
I'll be gluing it all up, or "closing the box" as it's said in this world. Wish me luck!

Go Eric! It's starting to look like a guitar. Do yourself a favour. Go by a bottle of Titebond 1 glue. You can use it to build your whole guitar. Even rosettes.

Cheers,
Danny

lol, Titebond I is my mainstay. I only do the "goop" because it does such a great job wicking in and around the plastic binding and eliminates
some of those "ahem", seam gaps that might occur. On less experience builders, of course.

Now, here's a question that I need answered;
I've now focused my attention towards making the bridge. How "thick", i.e. tall, should it be? I've got a nice, 6" long piece of Wenge that's
begging to be used for this, just wondering how much to thickness it down to. I think I read 3/8" in the Cumpiano book, is that pretty much standard
and/or is there a reason for something different?

For some crazy reason, I'm trying to build this guitar without the benefit of using plans, just measuring as I go. I picked up this habit over
in the solid-body-guitar-world and I'm still wondering why. I am, of course, borrowing (read; stealing) measurements for all the bracing for
the top and the back, along with all the info I can scoop up here in the forum. But I figure it's much easier to be "right" if you're not using
a plan. See...you hadn't thought about that, had you?

Looking good. Keep it up.

As for the bridge thickness, I do 3/8" for mine. I'm sure you'll find different people doing different things, but they'll probably all be in the same ballpark.

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Thanks,
Blain

http://www.ullrichguitar.com

"89.67% of all statistics are made up on the spot."