Steinway factory tour

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Steinway factory tour

Postby Bob Hammond » Mon Aug 12, 2019 8:08 pm

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Re: Steinway factory tour

Postby Bob Francis » Tue Aug 13, 2019 8:47 pm

That was fascinating and interesting.
Thank you
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Re: Steinway factory tour

Postby Clay Schaeffer » Fri Aug 16, 2019 11:20 am

Thanks for posting that Bob,
I found it interesting that they said gluing up the case work from straight flat grained sheets gave improved sound over cross plied (plywood) laminations. They also seemed to indicate toward the end of the video that every piano had it's own individual "voice", rather than saying they all sounded the same.
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Re: Steinway factory tour

Postby Barry Daniels » Fri Aug 16, 2019 8:25 pm

That is what I discovered when making laminated plates for archtops. A single cross grain layer would make the plate sound like cardboard. All parallel layers were very resonate.
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Re: Steinway factory tour

Postby Clay Schaeffer » Sat Aug 17, 2019 10:43 am

For several years now I have been regluing matched veneers back in the order they were cut to make back and side sets. To me they "tapped" similar to solid wood sets. It's nice that Steinway kind of validates that approach (although I don't think they match the veneers).
Barry,
What type of form and process did you use to mold the back for archtops ? I have been molding sides and pressing flat plates for what I have been doing.
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Re: Steinway factory tour

Postby Barry Daniels » Sat Aug 17, 2019 12:20 pm

I carved an inside form out of MDF and then made a top form out of fiberglass. I tried laying up veneer without the top form but got wrinkles. Everything is pressed in a vacuum bag.

There is a big discussion here on the MIMF several years ago where I went into detail on my methods, along with others who have laminated archtop plates.
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Re: Steinway factory tour

Postby Bob Hammond » Sun Aug 18, 2019 9:06 pm

Clay, the longrain lamination was something that I noticed too. I did some initial tests with uke sides using hide glue, but I didn't pursue it. Not because it was difficult or bad, I just got involved with something else. Maybe I'll see if I still have them around.

Also of interest was the paper membrane laid down on the soundboard. I don't know what to make of it. Would it be similar to 'double-tops'? Was it Randy Roberts who did that often?
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