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Joined: Mar 2020
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I've got a pack each of the smaller and larger diameter wood tuning pin bushings and finding that the small are maybe 0.5mm too small, and the large ones need a significant amount of tedious sanding to get it even close enough to pound in (and sometimes causing splits where I haven't sanded enough).

Using the smaller ones would be great as I wouldn't have to sand, but there's not enough friction to hold them when I try to drill out the centre hole.

Does anyone have any tips, or should I just continue wearing through sheets of sandpaper?

Cheers,
Tyson


Kawai KG-1C
Roland FP-30
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I just adressed this exact issue on my current rebuild; custom parts are the way forward!! smile

https://www.instagram.com/p/CHzhKO1gv1X/?igshid=u8pzi7bnyw9q

Happy new year! smile


Started work at the Blüthner piano re-building workshop in Perivale, UK, in 1989. Self employed since 2000. Learning something new about pianos every day... smile

http://www.hamiltonpianos.com/
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Those look fantastic, Adrian! I'm intrigued that someone is willing to fork out for a rebuild of a Challen.

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Wow, that’s wonderful!


Kawai KG-1C
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Originally Posted by Adypiano
I just adressed this exact issue on my current rebuild; custom parts are the way forward!! smile

https://www.instagram.com/p/CHzhKO1gv1X/?igshid=u8pzi7bnyw9q

Happy new year! smile

That is very cool. I would love to see a video of the CNC doing this.

Happy New Year!


Jean Poulin

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I don't know what size the t.p. bushings, but I would take a drill about .010" undersize of the larger bushing, and ream the plate holes out with it. That should meet your need, and will not weaken the plate meaningfully. I have done this on a number of pianos. Simple, and it only takes about half an hour to do.


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Have you tried soaking in mineral spirits to make them swell and then drive them in? Not that I've run into this problem. Just a suggestion.


Jeff Deutschle
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Who taught the first chicken how to peck?

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