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Loose thumb rest

Author: Garth Libre
Date: 2012-08-13 23:49

About a week ago I moved the thumb rest of my Yamaha. The screws were not self tapping ones that came stock with the horn. I had a variety of very thin drill bits (two that were actually thinner than the screw shaft). I tried to get the screws in the holes but because the screws weren't pointed I sort of had to widen the top of the hole just a shade to get them started. Once I got them in they were very tough to screw in, so I waxed the threads. When I first screwed them in the thumb rest was in tightly. A few days later I noticed the rest was loose, so I tightened the screws again and again they screwed in with resistance. Later that day the rest a shade of wiggle returned. I don't want to tighten the screws again for fear that the holes will just get more noodled out. I don't want to move the rest because it's in the ideal position for me.

Question ... what do I put in those holes to make the threads catch and secure the rest? In other woodworking projects (furniture), I usually use white glue and toothpicks and then re-drill the holes or screw the screws back in with glue and toothpicks while the glue is still wet. I have no idea how the factory put those screws in because I must have an enormous selection of tiny drill bits and I surely was in the ball park when I choose the ones I went with.

Garth, 305-981-4705. garthlibre@yahoo.com

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Loose thumb rest new

Garth Libre

2012-08-13 23:49