Posted by carverman on December 23, 2010 at 10:32am
Thia is a recycled and shortened tpwith string bar that I'm using.String tension is forcing the lid askew a bit, so I will reinforce theinside with a block of wood to prevent the tp from adding pressure on the lid.I added a piece of aromatic cedaron the inside glued underneaththe through neck at the back togive it some support and keep thelid from skewing from 6 string tension. Got it finally set up with10-46 guage XLs and it sounds prettygood with the .033uf tone cap.Played a couple of Xmas tunes on it,sounds not too bad acoustically too.
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I came across the same issue with mine (see photo on my page). I have been meaning to take the box apart and glue in a block as you have done but I haven't wanted to take my strings off as I'm having too much fun playing it. I notice that you have cut a hole in the back of your box . I attached my tailpiece to the outside of the box, basically using the box as a spacer and using dirty great long screws into the back of the jarrah neck.
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It's a neck through design. With combined 6 string tension at pitch being 150lbs or more, the recycled tp
from an old Epiphone guitar was exerting too much tension on the thin top at the wrap around and distorting
the hinge lid. It was an afterthought because I didn't extend the endpiece out of the box like some people
have done, so it was my solution to a problem I created in making it. These are lessons learned and my
next one, which will be a spanish cedar design from actual boards (not using a actual CB) will be better
from the lessons learned in my first build.