another conversion
Posted: Fri Mar 17, 2023 7:22 pm
this conversion is different in that its the first one I am doing that I don't have to replace the top. Instead I am converting the rosette from 28 to 45. This procedure was difficult but not impossible. The hardest part was creating the process.
The first think I had to do was glue in 3 tabs. Then create the hole plate with the center hole. I can use my old rosette cutter. I had to determine what I had to remove and what I had to replace. I did this by, first laying out the fretboard extension and know where the 45 extension was going to fall out in relationship to the hole and rosette location. The 45 had a wider rosette and the hole is placed for all the pearl to fall in the rosette.
So the normal spacing is a.095 rosette ring inner and outer. Here I use .075. The spacing of the rings on the rosette is .115 and .125. So on the conversion I had to change this so the fretboard would not be trimmed too close to the 20th fret. So in the pictures you can see where I removed wood around the rosette and inlaid a ring of Sitka spruce. Then I could route for the 45 style rosette. This is a nut shell may be over simplifying it , but you can see how I did things and why.
The first think I had to do was glue in 3 tabs. Then create the hole plate with the center hole. I can use my old rosette cutter. I had to determine what I had to remove and what I had to replace. I did this by, first laying out the fretboard extension and know where the 45 extension was going to fall out in relationship to the hole and rosette location. The 45 had a wider rosette and the hole is placed for all the pearl to fall in the rosette.
So the normal spacing is a.095 rosette ring inner and outer. Here I use .075. The spacing of the rings on the rosette is .115 and .125. So on the conversion I had to change this so the fretboard would not be trimmed too close to the 20th fret. So in the pictures you can see where I removed wood around the rosette and inlaid a ring of Sitka spruce. Then I could route for the 45 style rosette. This is a nut shell may be over simplifying it , but you can see how I did things and why.