[CAUT] vertical hammers

[Don McKechnie]

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A variation on this is to use 1/8" clear acrylic instead of plywood. 
Push the hammers up to the acrylic sheet and make your marks on the back 
side of the sheet. I believe I picked up this idea from Wally Brooks 
some years ago at a convention.

Don



> Subject:
> RE: [CAUT] vertical hammers
> From:
> "Ed Sutton" <ed440@mindspring.com>
> Date:
> Thu, 14 Jul 2005 16:04:28 -0400
>
> To:
> "College and University Technicians" <caut@ptg.org>
>
>
>It can be done well on the bench, thus:
>-Note blow distance in the piano.
>-Set up action on the bench in an action cradle.
>-Attach bolts (about 1/4"x3") through the action bracket slots.
>-Cut strips of plywood to approximate the string planes, bass and
>tenor-treble.
>-Drill holes to attach the plywood to the bolts, use nuts and washers to
>mount the boards at the blow distance from hammer rest line.
>-Put masking tape on the boards at strike point line.
>-Press old hammers against a stamp pad, then press them against the masking
>tape, printing an index of the string spacing and hammer spacing.
>-Remove old hammers and replace as in piano.
>-It is also possible to superglue a support shelf on the boards to assist
>in maintaining hammer alignment.
>-If you have lots of pianos of same model, save your index boards for
>re-use.
>
>Ed Sutton
>
>
>  
>

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