[pianotech] Re. Baldwin hammers

[richarducci at comcast.net]

Thanks for the pic Del.
This will drive home the case for new hammers to be installed!

Rick Ucci
Uccipiano.com

On Sep 12, 2012, at 11:15 AM, "Delwin D Fandrich" <del at fandrichpiano.com> wrote:

> Depends on the press. Attached is a picture of a manual press. Hydraulic
> presses are similar; they replace the manual acme screws with hydraulic
> cylinders. 
> 
> ddf
> 
> 
> Delwin D Fandrich
> Piano Design & Fabrication
> 6939 Foothill Court SW, Olympia, Washington 98512 USA
> Phone  360.515.0119 — Cell  360.388.6525
> del at fandrichpiano.com — ddfandrich at gmail.com
> 
> 
> -----Original Message-----
> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
> Of richarducci at comcast.net
> Sent: Wednesday, September 12, 2012 6:36 AM
> To: pianotech at ptg.org
> Subject: Re: [pianotech] Re. Baldwin hammers
> 
> How is this done in the factory?
> Pneumatic clamps?
> 
> Rick Ucci
> Uccipiano.com
> 
> On Sep 12, 2012, at 9:32 AM, Terry Farrell <mfarrel2 at tampabay.rr.com> wrote:
> 
>> Sometimes it is difficult to manually squeeze them enough, but often not.
> In the end though, I've always been able to do it manually. As to what
> pulled it apart in the first place, I have always thought that the glue
> joint was so poor that they pretty much just fell apart. Now was that
> because of the quality of the glue, the amount of glue, the prep - I don't
> have a clue.
>> 
>> Terry Farrell
>> 
>> On Sep 11, 2012, at 8:13 AM, Ron Nossaman wrote:
>> 
>>> On 9/10/2012 2:49 PM, Terry Farrell wrote:
>>> 
>>>> but for clamping, I simply squeeze
>>>> between thumb and index finger for the 20 seconds or so.
>>> 
>>> And you've actually suggested that some of the rest of us are bionic? I
> haven't spent a lot of time gluing exploding hammers back together, but I
> haven't come across many I remember being able to do this with. Which brings
> up the question: If the felt of a hammer is that easy to squeeze back into
> place, what pulled it apart in the first place? AT'sa pretty lousy glue
> joint! Then there's the hammer to shank joint. Maybe that explains the
> attached PDF too, when I had a run of loose ribs in new Baldwins. We have a
> possible trend...
>>> 
>>> From a practical standpoint, manufacturing QC has *GOT* to be a nightmare
> on all levels, and I doubt few if anyone noticed anything at the time
> indicating this stuff would be a future problem.
>>> 
>>> Ron N
>>> <Baldwin gluing ribs.pdf>
>> 
> <Manual press 1 -- web.JPG>