Let-Off?? Don't you mean lost motion? Those nails seem rather high for a capstan. You'll have to build up the back of the key to support the typical 28mm (1") capstan. The span also looks too short to accommodate a dowel type capstan. Plug the holes. Add a cap. Redrill for new threaded capstans. Cut plugs from old keys with a 1" x 1/4" plug cutter. If you want, I can send a you a set since I have them already made up for changing capstan lines. It would be rather uncomplicated. Setup the drill press to ream the holes to 1/4". install plugs and wooden caps. Now the drill press is already setup for drilling the new capstan (don't forget to change to a smaller bit). -- Regards, Jon Page
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