False Beats

[Farrell]

Carl, 47 thank yous. Some great ideas, some great detail. I think I
understand your drill press modification. Thank you ever so much. Gotta go
now - got jigs to build!

Terry Farrell
Piano Tuning & Service
Tampa, Florida
mfarrel2@tampabay.rr.com

----- Original Message -----
From: "Carl W. Meyer" <cmpiano@earthlink.net>
To: <pianotech@ptg.org>
Sent: Saturday, September 23, 2000 8:00 PM
Subject: Re: False Beats


> Terry;  47 questions? I have 47 answers.  Hope they match the questions.
>
> To start with, I found a plug cutter at a local tool supply.  It will cut
a
> three eighths plug two inches long.  It cost over 50 dollars. The letters
> on it are unclear due to wear but I think it is a Delta #15-534.  I've cut
> about a thousand plugs w/o sharpening.  I use standard supply house pin
> block material.  I blow cold air from a cold gun on one side of the cutter
> and place a vacuum wand on the other side to draw the cold air over the
> cutter and suck up the chips. I don't cut all the way thru because then I
> would have to stop the drill to remove the plugs.  So I leave the last
1/16
> intact and when I've drilled a batch of plugs I put it in my table saw and
> rip that last 1/16 off and they all fall out. I've never used  any of the
> harder material like delignite, falconwood  since I hear they are very
> unforgiving. I'm going to start mic-ing my tuning pins since the brand
I've
> used may not be consistent.
>
> The Epo-tek has a pot life of 30 min for a 100 gram batch. Fifty min for a
> 25 gram batch.  Cure is overnight at room temp, one hour at 25 c.  Shelf
> life one year , but I've had mine for lots longer that that.  Epo-tek is
> available from Epoxy technology inc. 14 Fortune dr. Billerica, Ma. 01821
> 508/667-3805   It cost about 30 dollars a pound the last time I bought
> some.  Mix ratio is 4-1 by weight and 3-1 by volume.  Lap shear strength
is
> 1700 psi.  I can't find a hardness spec.  I have never seen any epoxy with
> viscosity below 100cps in any spec sheets.  There are a few below 1000cps.
> I'm beginning to think it is false economy to spend time and money looking
> for a cheaper alternative.  I will try to get some west systems to try
out.
> As to hardness, it appears that the epo-tek is pretty hard, but I don't
> think any of the
> other wouldn't be hard enough for our use.
>
> In the fall 2000 catalog from Harbor freight tools (southern Calif.) there
> is a 5 speed bench drill press item #01844-6cfh for $39.99.  I paid more
> for mine but it's the same unit.  Central Machinery (China)  You can
remove
> the base and use it for whatever and also the table.
> Bolt the flange to your 12 inch square sliding base and then cut a hole in
> the top lid so that you can lower the unit all the way down.  Now you
can't
> lower the chuck without modifying the quill.  Drill a hole thru the shaft,
> get rid of the three handles and mount a three or four inch pulley above
> the shaft and with aircraft cable belt the unit so that less than 1/2 turn
> of a lever attached to the pulley will actuate the chuck thru its full 2
> inch stroke.  Find a good industrial tool and supply place and get a
> catalog and they will have gobs of drills of various sizes and lengths.
> Metric is a good choice for those odd sizes.  You may not be able to get
> them in hi-helix but I'm sure that regular ones will do the job just fine.
> I'm sure
> pictures would be better that my trying to describe this.  I have been
> teaching a class at a couple of chapters in the area and once at the Cal
> state conv  titled "Make your own tools".
> This is covered as are many simple gadgets I've come up with.  I had a
> booth at several natl conventions, and sold a few tools, but I've given it
> up as too much work.  I'm now considering video taping that class and
> offering it at a small charge.
>
> Anyway I'm tired of typing. (Not my best talent) I hope I've answered at
> least some of your questions.  Feel free to call me if you decide to
> actually build something like this.  I might be able to get some pictures
> together, for what they are worth.  The reason I don't like to give out
> dimensions and detail is that I would never build the second one the same
> as the first.  Sorta like Jonas Chickering, huh?
>
> I'm gonna go find me a beer in the fridge. Keep those cards and letters
> coming in!  Cheers!
>
> Regards to all.
>
> Carl Meyer
> Santa Clara, Ca.
> 408/984-0482
> > [Original Message]
> > From: Farrell <mfarrel2@tampabay.rr.com>
> > To: <pianotech@ptg.org>
> > Date: 9/22/00 5:02:13 AM
> > Subject: Re: False Beats
> >
> > Hello Carl Meyer. Interesting stuff. About 47 questions.
> >
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