New buzz on newly-sanded fingerboard on my Juzek bass

[Jerry Dee]

I have a friend who is a master violin craftsman/luthier who usually works on violins, violas and cellos. Since he a friend, he works on my Juzek bass. I had a divet from wear at the D on my A string which was buzzing, so he sanded the entire fingerboard. He does great work, however, I now have a buzz around the C on my G string. He has re-adjusted the bridge, spent an hour looking over the fingerboard, and replaced the string, but still cannot figure out the problem. Like I said, he is truly a master violin/viola maker, fifth-generation Czech, and he really knows his stuff, although he admits he's really not a "bass-guy." Can anyone please help with this problem? Thank you.

[Cody Sisk]

Did the guy use a flat sanding block to sand down the grooves? Chances are he sanded down the scoop. Scoop in the fingerboard is more crucial than it is on other instruments. (Though scoop is important for playability on the smaller instruments, a straight fingerboard on a violin typically isn't prone to buzzing like a bass is)

[kurt ratering]

if he just focused on the trouble spot, he may have sanded a new bump futher up the board.

[bigolbassguy]

Originally Posted by kurt ratering

if he just focused on the trouble spot, he may have sanded a new bump futher up the board.

That's what I was wondering. Hold the string down against the fingerboard on each side of the buzz and look for daylight underneath it. You can inspect the whole fingerboard this way. (props to Jake D.) I prefer a straightedge, but this method works well

[Steve Swan]

Take it to a specialist doublebass luthier who has a lot of experience. This is bread and butter setup stuff here. It shouldn't take anyone an hour of "inspection" and still get poor results.

[Jake deVilliers]

Originally Posted by bigolbassguy

That's what I was wondering. Hold the string down against the fingerboard on each side of the buzz and look for daylight underneath it. You can inspect the whole fingerboard this way. (props to Jake D.) I prefer a straightedge, but this method works well

This is good advice - you can also hold down any length of taut string to get a smaller view of the board. The string is an infinitely adjustable straightedge from 1" to 35" - and its free!

But you'd be much better off to take it to a DB specialist.

Good luck!

[Jerry Dee]

As good as a luthier as he is, my guess is, since he isn't DB specialist, he's missing something regarding the scoop... thanks for your replies.
Jerry Dee

[notabene]

A flat, sharp, scraper, is a better tool for fixing neck buzzes than sanding, for me.

Steven Schuster