[pianotech] Diaphragmizing

[phil at emvkeys.ca]

something similar

http://www.leevalley.com/wood/page.aspx?c=1&p=49709&cat=1,41182,48945 
<http://www.leevalley.com/wood/page.aspx?c=1&p=49709&cat=1,41182,48945>

Phil

Al Guecia/AlliedPianoCraft wrote:
> 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
>>>>
>>>>
>>>
>>>
>>
>>
>
> ------------------------------------------------------------------------
>
>
> No virus found in this incoming message.
> Checked by AVG - http://www.avg.com 
> Version: 8.0.176 / Virus Database: 270.10.13/1916 - Release Date: 1/26/2009 7:08 AM
>
>   

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20090126/806c7b90/attachment-0001.html>