Re: harp ukulele project blog
Posted: Mon Jul 23, 2012 5:57 pm
I spend this weekend almost finishing the bindings. I used a stewmac true channel binding tool with a colt router to route most of the rebate for the bindings. I was able to use my ibex purfling cutter to finish most of the rest near the harp peg head. The remainder including the top edge of the rims between the harp peg head and the rims I used a combinations of my razor saw, xacto knife and a chisel. All and all I think it is going to look OK, but it was the hardest job that I have done on an instrument yet.
The job might of been easier but after carefully setting the router bit, some how on the first cut on the lower bout I noticed that I went .01 too deep. I am still not sure what happend. Maybe the router was not locked into position. My test route was perfect. I probably could have left it and sanded down the top near the edge, but I glued an additional strip of fiber purfling on the bottom edge of the binding for the lower bout. I routed the other lower bout half with the same setting then adjusted the router properly for the rest of the cut. I feathered the purfling and the rebate transition. So on the bottom of the instrument the black purfling line is a little thick.
The job might of been easier but after carefully setting the router bit, some how on the first cut on the lower bout I noticed that I went .01 too deep. I am still not sure what happend. Maybe the router was not locked into position. My test route was perfect. I probably could have left it and sanded down the top near the edge, but I glued an additional strip of fiber purfling on the bottom edge of the binding for the lower bout. I routed the other lower bout half with the same setting then adjusted the router properly for the rest of the cut. I feathered the purfling and the rebate transition. So on the bottom of the instrument the black purfling line is a little thick.