Starting a DB Project

[Ruben E garcia]

Originally Posted by Ken Smith

Show me/us the Fitting problem you are having and do not remove anything original.

Sometimes the Blocked frame shifts. Sometimes you have shrinkage of the Top grains and the Top is shy of the Ribs i n the lower bout. In this case, The Ribs are cut and trimmed at the Block. For this you have to remove the lower Ribs from all blocks and re-fit it o the Corner possibly but if not, just at the Tailblock, Cut and pull together to fit the Top and maybe Back. The Plates should overhang just a bit. In the Blocks with Ribs twisted inwards, then the Top will overhang more. Still, nothing is ever perfect on an old bass.

I see what are u saying, I am sorry I did not explain my self clearly, the problem that I am having is the south part of the edges are not making contact with the flat surface, in this case the Edges thickness is about 7mm, for me to make the south part to touch, I will have to remove original material from the top edges bottom and this will result and a thinner than the original edge… I know that is not right… I don’t know if the top got distort during my repairs or what should I do…
Should I clamp it knowing that there is a little stress anyways?




but the rest of the top is resting ok

[Ken Smith]

Show the Top sitting on the ribs, dry clamped around lightly. See what gives and doesn't. The bass Bar is in already?

[Ruben E garcia]

Originally Posted by Ken Smith

Show the Top sitting on the ribs, dry clamped around lightly. See what gives and doesn't. The bass Bar is in already?

It still have some of the old bar or most to the old bar since I did shave down the bass bar hump only.

[Ken Smith]

Originally Posted by Ruben E garcia

It still have some of the old bar or most to the old bar since I did shave down the bass bar hump only.

Let's see what you did with that Bar. Was it angled slightly across the grain from top to bottom or straight with the grain? Is there a crack under the bar or only up to the bar at the bottom?

[Ruben E garcia]

Originally Posted by Ken Smith

Let's see what you did with that Bar. Was it angled slightly across the grain from top to bottom or straight with the grain? Is there a crack under the bar or only up to the bar at the bottom?

I did shave it a lot just enought so the bar let the top to sit in a flat surface to make sure that it's flat:

Original:




now:







a small crack in the botom

[Ruben E garcia]

Question, this is where the old bass bar used to be, I am thinking on putting the new one right on the same spot, but is the bar could be way to align with the top grain, that could cause a crack later on!!!

[Ken Smith]

Scored lines? Black ink?

The shadow of the oxidation difference is plenty enough to see where the old bar was for reference regardless of where the new bar is going.