Regulation bench

[Keith Roberts]

Can anybody tell me the maximum distance an action could have from the front
of the keyframe to the hammer strike line? With the exception of the real
odd ones.
Thanks Jim, the pieces to the puzzle are all starting to fall into place.
For my regulation bench, I'm going to butt the back left corner of the key
frame to the string height rail and line the front edge of the frame
parallel with the edge of the bench. I'll put 1/4" index marks on the bench
top to line up the hammers to the string height rails and record the
position.
For my string height rails, I think I will have square piece of wood over
the hammer sections that slides vertically and doesn't interfere with the
different break points. To that I will attach a narrow horizontal rail made
out of a wooden yardstick in case I need to put a piece of masking tape
along the edge and mark the string position before I change a set of shanks.
It seems to me it would be easy and cheap to have extra rails so you can
save rails with an action and go on with other work if you're waiting for
parts.
Any slick ideas for benches and string height rails?
Any portable benches?
Keith R
----- Original Message -----
From: <JIMRPT@aol.com>
To: <pianotech@ptg.org>
Sent: Sunday, January 12, 2003 7:42 AM
Subject: Re: Regulation bench bedding


> Keith;
>  You can set dip out of the piano 'and' get it very close...there are some
> factors that you must take care of first though.
> 1. The keyframe must be bedded [key height determined(?)] before taking
the
> thingee to the bench.
> 2. The bench must be fairly level in all aspects, not perfect but close.
> 3. With shims you can recreate the frame bedding on the bench...shims can
be
> almost anything from newspaper to veneer pieces.
> 4. Have a system where the front rail can be fastened down firmly but not
too
> tight.
> 5. Index the frame and benchtop so that the frame can be put back in the
same
> spot each time.
>
>  Once these conditions are met you may continue your regulation in 'all'
> aspects of the job. I find it helpful to set dip 'slightly' deep and plan
on
> fine dipping when the frame is back where it belongs, often it is not
needful
> though. A thorough and complete regulation may be done in this manner as
all
> factors are relative in or out of the piano.
>  Fine or touch up regulation will be needful once the thingee is where it
> belongs due to differences in string height, etc. Overall a very good job
may
> be accomplished 'on the bench' if you follow the bedding thingee.
> My view.
> Jim Bryant (FL)
>
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