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sanding the soundhole
http://www-.luthiersforum.com/forum/viewtopic.php?f=10102&t=7513
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Author:  Andy Zimmerman [ Fri Jul 14, 2006 8:02 am ]
Post subject: 

I have a top in which the soundhole is not perfectly round. I would like to
sand it round. I was looking for a cone inwhich you could add sandpaper to
the outside. Anyone know where I could get such a cone??? Or do you have
better suggestions for fixing my soundhole

Thanks

Author:  Wayne Clark [ Fri Jul 14, 2006 8:03 am ]
Post subject: 

How about a funnel?

Author:  LuthierSupplier [ Fri Jul 14, 2006 8:38 am ]
Post subject: 

That is what I use...a small funnel found in the automotive dept at walmart. I do the top and inside, then a very light sand in the middle by hand. Be careful, as this is not foolproof, and you can put too much pressure on one side. Good luck!
TracyLuthierSupplier38912.7356018519

Author:  Brock Poling [ Fri Jul 14, 2006 8:49 am ]
Post subject: 


I used to sand them by hand, which worked fine, but then I saw this "jig" on Charlie Hoffman's site where he uses a round over bit to profile the sound hole. I built one of these and I really like the results.

Author:  Pwoolson [ Fri Jul 14, 2006 9:32 am ]
Post subject: 

You might find a styrofoam cone at an arts and crafts store. I think people use them to make dolls.

Author:  TonyKarol [ Fri Jul 14, 2006 12:22 pm ]
Post subject: 

piece of 3.5 inch drain pipe, wrap sandpaper around it - gets it pretty darn close.

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