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Re: loose unthreaded post

Author: Chris P
Date: 2021-03-11 21:50

You can also fit or have someone fit a locking screw to prevent the pillar turning - a thumbrest screw will be ideal for this. Drill a hole by the pillar base to take the screw thread (probably around 1.6mm or thereabouts depending on the size of the screw thread), then use a larger diameter cutter (the same diameter as the screw head) to cut a notch out of the pillar base so it resembles a partial eclipse. Then screw in the thumbrest/wood screw and that will lock the pillar in place.

If that's a bit too involved, another thing is to remove the pillar and make a paper washer or shim that fits under the pillar base so it won't turn beyond the point where it lines up with the opposing pillar. The shim will probably be 5mm outer diameter with a 3mm-3.5mm hole. You can add more than one shim or use different thickness paper or card to get the desired results. Yamaha suggested using a shim made from abrasive paper with the abrasive side down so it bites into the wood.

Either that, or put a small quantity of powdered pumice in the screw hole and refit the pillar and that will prevent it being screwed in too far and beyond the point of rotation where you need it to be. That can easily be added to or removed.

Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.

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