[pianotech] Pin Driving Fluid Search

[David Love]

That should read dip a 3/16" hammer shank...--too early.  

David Love
www.davidlovepianos.com


-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of David Love
Sent: Tuesday, April 20, 2010 6:19 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Pin Driving Fluid Search

Pour a small amount it into a small cup (about 1/2" - 3/4" deep.  Dip a
3/16" and swab the hole lightly.  You don't need that much.  Don't work too
far ahead.  I swab two unisons at a time. 

David Love
www.davidlovepianos.com


-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Al Guecia/AlliedPianoCraft
Sent: Tuesday, April 20, 2010 4:35 AM
To: pianotech at ptg.org
Subject: Re: [pianotech] Pin Driving Fluid Search

Ron, thanks for taking the time and posting the results. I have been curious

about the use of PDF's.

My question to those using PDF is, how do you use it, without making a mess 
of the plate and yourself? Not seeing this done, I can't picture to process.

Al -
High Point, NC



--------------------------------------------------
From: "Ron Nossaman" <rnossaman at cox.net>
Sent: Monday, April 19, 2010 9:26 PM
To: <pianotech at ptg.org>
Subject: Re: [pianotech] Pin Driving Fluid Search

> jimialeggio wrote:
>> I'm interested in experimenting with pin driving fluid.
>
> I was curious too, so I did. A couple of months ago, I took a cutoff from 
> one of my hybrid blocks, double-drilled four sets of three holes in it, 
> and tried three arbitrary pin driving fluids. The first row of dry driven 
> pins (the control) were at around 175lbs initially. All the fluid driven 
> pins were considerably lower initially.
>
> The dry driven pins are still in the 170-175 range.
>
> The second row, which was lacquer sanding sealer, are the lowest, at 
> around 100.
>
> The third row, which was Danish oil, started out with very low torque, 
> snapping uncontrollably when moved. This was expected, but I wanted to see

> where it would end up. Today, it's in the 170-175 range and all pins turn 
> quite nicely. Functionally similar to the dry driven, which surprised me.
>
> The forth row was a solution of fresh mixed shellac and rosin (sports 
> supply). It started out fairly low in torque, but now it's in the 170-190 
> range, and turns quite nicely. The readings actually got higher than the 
> dry driven, which also surprised me.
>
> So everything I tried (so far) worked about like everything else, in spite

> of the rather more wide than usual criteria for choice of fluid types. The

> big difference (so far) is the "settle in" torque range.
>
> So it seems to me (so far) that there's an awful lot of smoke being 
> generated in pin driving fluid Neverland. This does *not* surprise me. 
> Maybe 37.2154 years from now, everything but the mythological and 
> universally unobtainable ("Shoulda been here last year. We had TONS of the

> stuff, but you can't get it now") elixir of torque will spontaneously 
> dissolve the block. It would be fun to be around and see it not happen, 
> except that no one would either notice or care.
>
> So my conclusion (so far) is that any sort of sheep dip you can find that 
> isn't obviously or logically outright destructive will probably work about

> like any to-die-for, unenlightened not eligible, secret handshake, glow in

> the dark, heal the sick, raise the dead, payable in blood nostrum that 
> unobtainably remains eternally shimmering at the edge of reality like the 
> peripheral Boojums that dart past the doorway when you are looking 
> elsewhere.
>
> But that could change.
> Ron N
>