Optimum spacing for the two melody strings
Instruments- discuss specific features, luthiers, instrument problems & questions
I agree with John on the 1/8" spacing. Any closer and you are sure to have problems. Depending upon the glue used your should be able to remove the bridge with either water/heat for wood glue or a sharp side ways rap with a hammer for super glue. In the first method I use a little water placed along the bridge where it meet the slot it is in and then use a heat gun to soften the glue. As the glue softens I can pry the bridge out of the slot. In the second method I use a piece of wood the width of the nut, place it against one side of the nut, then hit the wood sharply with a hammer. It doesn't have to be hard hit. Make sure you have the dulcimer securely clamped in place so it doesn't move when you hit the bridge. On hourglass dulcimers I place the dulcimer on its side and can put my right arm in its waist while holding the stick on the bridge. Then I can give it rap with a hammer. Be careful.
I have used very fine wood particles which I save from sanding. I have small bottles of ebony, rosewood, walnut, maple, and oak dust which I use on corresponding bridges. The finer the wood dust, the better. Even though it will harden quickly, I let it set for an hour or so before trying to add new slots.
Ken
"The dulcimer sings a sweet song."