Joe, do you use anything on the mortice to ease removal of knuckle? Wall paper remover or something ? Rick Ucci Uccipiano.com On Feb 5, 2012, at 9:50 PM, "Joseph Garrett" <joegarrett at earthlink.net> wrote: > Just finished swapping out the 10mm knuckles for some 9mm ones. As I was > doing it, it occurred to me that the fine details might be of use to those > who have not done this job. So, here they are: > I removed the original knuckles with Fence Wire Cutting Pliers(slightly > modified<G>). As I did, I cleaned the notches and removed any residual > glue from the shanks & mortises. I did this with Nicholson 4" files, one > with the sides made "safe", the other left as is. It turned out that the > "as is" one was .001" thinner than the "safe" one, which was used as the > final thing to clean out the mortise and size it. The "as is " one was > exactly the dimension of the mortise. <G> Once all the shanks were prepped, > then each individual knuckle was fitted for it's shank mortise and the nap > of the leather was determined. The nap needs to be smooth towards the end > of the shank and rough towards the centerpin. The "rosewood" of the > knuckles is not absolutely the same size, nor are the mortises of the > shanks, so individual "fitting" is needed. Once the knuckle was "fitted", > it was then glued into the mortise. I use modified clothes pins, (the > spring type), to add just enough pressure to hold the knuckle at right > angles to the shank and in the bottom of the mortise, without crushing the > knuckle. At the same time as the gluing process, I double check for damage > from the removal of the other knuckles. If found, I press glue into the > crack(s) and the clamping does a double duty. I have 16 of the clamps, so I > just pull from the first of the shanks, when I get to #16 I use #1. It > seems that the cold hide glue has set up sufficiently in this amount of > time. The work goes fairly quickly, even though I'm doing a bunch of things > to each one of the shanks, in the process. Once the glue is set, I clean up > any glue beads/smears on the outside of the joint(s). Of course, in the > process, I make sure the knuckles are in exactly the proper position in > relation to the shank/motises. > Hope that helps. > Joe > > > Joe Garrett, R.P.T. > Captain of the Tool Police > Squares R I >
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