[pianotech] Diaphragmizing

[Al Guecia/AlliedPianoCraft]

That is exactly what it was like. Putting my order in right now.

Thanks, Al

--------------------------------------------------
From: "Mike Spalding" <mike.spalding1 at verizon.net>
Sent: Monday, January 26, 2009 8:18 AM
To: <pianotech at ptg.org>
Subject: Re: [pianotech] Diaphragmizing

> Did it look like this?
>
>
> http://www.woodcraft.com/family.aspx?FamilyID=555&refcode=05INFROO
>
> Lie Nielsen chisel plane.  Wonderful tool.
>
> Mike
>
> Al Guecia/AlliedPianoCraft wrote:
>> Thanks for the information Ron. When I worked at Steinway in the 
>> Regulating department, we had a nose plane. It was a good size plane with 
>> the blade up front with no frame in front. I haven't seen one since. It 
>> came in very handy preparing the key bed. Unfortunately it was company 
>> property. That would be a great tool for reduce the thickness of the 
>> panel  perimeter around the edge. Tried a Google search but could find 
>> anything like it.
>>
>> Al
>>
>>
>>
>> --------------------------------------------------
>> From: "Ron Nossaman" <rnossaman at cox.net>
>> Sent: Sunday, January 25, 2009 6:22 PM
>> To: <pianotech at ptg.org>
>> Subject: Re: [pianotech] Diaphragmizing
>>
>>> Al Guecia/AlliedPianoCraft wrote:
>>>
>>>> <snip> Rebuilding with an existing board, thinning the bass (or
>>>> channeling like Overs and Seiler) can be very worthwhile.
>>>>
>>>> Can you explain how you do that?
>>>>
>>>> Al
>>>
>>> Ron O has a photo on the opening page of his website 
>>> http://www.overspianos.com.au/ showing the soundboard with a channel 
>>> routed around the inner rim in the bass, thinning the panel perimeter. 
>>> This is a laminated panel, so tapering it wasn't a reasonable option. 
>>> The channel did the trick very nicely.
>>>
>>> Another approach, on a solid panel, is to plane, chisel, grind, gnaw, or 
>>> otherwise reduce the thickness of the panel perimeter around the edge of 
>>> the bass, tapering it back to full thickness in the middle. If you have 
>>> sufficient back scale length in the bass to make it worth the trouble 
>>> (since you already have the plate out), it should help bass response 
>>> noticeably. If you have the classic 40mm back scale on A-0, don't 
>>> bother.
>>>
>>> Ron N
>>>
>>>
>>
>>
>
>