[pianotech] Erwins key dip gauge

paul bruesch paul at bruesch.net
Sat Feb 28 07:05:56 PST 2009


The .370" just forward of the front rail pin will be more than .370" at the
front of the key. I dunno how much.

Paul Bruesch
Stillwater, MN

On Sat, Feb 28, 2009 at 7:45 AM, jim ialeggio <jimialeggio at gmail.com> wrote:

> Dale,
>
>
> What an elegantly simple idea.
>
> In using one of these; is there a reason to go with .370 dimension rather
> than the full .390...other than the fact that .370 can be had off the shelf,
> and you need a lathe to get to .39?   Seems like .39 would skip the shim bit
> which always seems to turn out to be an exercise in inefficiency.
>
> On the other hand .370 allows the tool to be used in various
> gradations....?
>
> Jim
>
>>
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