Repairing trem knife edges
OK, i think a nice writeup was lost when the forum crashed a while back.
You will need two FINE files.
* One round one. Mine are 7/32" diameter
* One flat (mine is a 3-sided) about 5/16"
Obviously, the round file is for the curved tremolo knife edge, the flat file for the flat knife edge. The files usually are bi-directional, like a saw. You will have to stroke the file in ONE DIRECTION, utilizing the blades to smooth not rip the metal edge. See the crude diagram below:
<<<<<<<<<<<<&l t;<<< (knife edge)
\\\\\\\\\\\\\\\\ (file blade orientation)[/font]
Ensure that you hold the file at the angle that would fix the edge/burr. You're looking at about a 45-degree angle or less but eyeball it to follow the existing knife edge.
I'll have to take some pics but in the meantime common sense should prevail. Use the full length of the file with long, steady strokes. Repeat a few times and reexamine visually to see if more is needed.
Again the goal is to make the knife edge crisp instead of being dull, blunt or burred.
The last step is to replace the tremolo posts. Makes sense to start with new ones if possible. Good luck... glen
(Edited by jemsite at 10:38 am on April 30, 2001)
(Edited by jemsite at 10:39 am on April 30, 2001)