action bedding

[Overs Pianos]

---------------------- multipart/related attachment
--============_-1230111001==_ma============
I use a dial indicator gauge for many measurement tasks in our 
workshop. While adjusting bedding screws back in 1987, an idea 
occurred to me which has since proven to be perhaps the most accurate 
and fast method for this operation.

Included below is a description of this technique which I wrote in 1996;

Setting bedding screws with a dial gauge.

In 1987 I developed a method for setting the bedding screws (glide 
bolts) with a micrometer dial gauge. This method is extremely 
accurate, and much faster than the traditional 'tapping' method. With 
the action and keys fitted to the key frame in the piano, the glide 
bolts are wound up so that they clear the key bed. The dial gauge 
(mounted in a suitable piece of wood, see diag.) is placed on the 
keys at the balance rail, adjacent to the first glide bolt.

            

The dial gauge plunger will be compressed by the pin block (the 
reading is unimportant). The glide bolt is adjusted down until the 
dial gauge reading just starts to move, and until the precise point 
of contact of the glide bolt with the key bed is determined. This 
procedure is repeated for the other glide bolts. The adjustment of 
all bedding screws will take no longer than 5 minutes.


Regards to all,

Ron O
-- 

_________________________

Website:  http://www.overspianos.com.au
Email:      mailto:ron@overspianos.com.au
_________________________
--============_-1230111001==_ma============
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/ba/bd/ae/5e/attachment.htm

--============_-1230111001==_ma============--
---------------------- multipart/related attachment
A non-text attachment was scrubbed...
Name: bdign.sc.adj.jpeg.jpg
Type: image/jpeg
Size: 14875 bytes
Desc: not available
Url : https://www.moypiano.com/ptg/pianotech.php/attachments/ba/70/94/2c/bdign.sc.adj.jpeg.jpg

---------------------- multipart/related attachment--