[CAUT] Mitutoyo gauge

[mario at pianosinsideout.com]

Would this work for measuring hammer hardness? I supposed you'd need to
devise a jig.

-----Original Message-----
From: Ron Nossaman [mailto:rnossaman at cox.net] 
Sent: Tuesday, December 21, 2010 5:06 PM
To: caut at ptg.org
Subject: Re: [CAUT] Mitutoyo gauge


Punching squeezers,
I bought a low tech durometer at an estate sale cheap, a few years ago. 
Keen little toy, intended for rubber originally, but it works fine for felt
too. It's a standard Shore A scale. Here's a photo of the durometer, and a
sampling of punchings, for your edification.

The punching on the left is from what's probably a 40+ year old bag of old
tuner leftovers. It's thinner than the others, but reads the same when two
are stacked. It reads the same as the Crescendo punchings. The dark green
Pianotek punching is older, and a bit firmer than the new Pianotech punching
of the lighter color. Same stock number. The Yamaha punching should be
pretty close to current stock. The Schaff punching on the right is what they
sold forever, though I don't know if it's what they sell now.

There you go, for whatever...

Yea, I know, I spelled Crescendo wrong. <G> Ron N