pin comparisons

[Erwinspiano@AOL.COM]

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In a message dated 1/26/2002 8:28:43 PM Pacific Standard Time, A440A@AOL.COM 
writes:


> Subj:Re: pin comparisons 
> Date:1/26/2002 8:28:43 PM Pacific Standard Time
> From:<A HREF="mailto:A440A@AOL.COM">A440A@AOL.COM</A>
> Reply-to:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A>
> To:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A>
> Sent from the Internet 
> 
>             Ed

    Thanks for the clarification
            >>>>>>>Dale

> 
> Dale questions: 
> <<  Now I'm curious. If I used any thing smaller  than .250 to drill no. 
> one 
> pins in the buldoc blocks I'd be hatin life. Are you perhaps running the 
> drill speed slower or are you just stronger than Me.?Slower speed usually 
> nets a looser fit. I've been currently running drilll speeds of 1200 to 
> 1400 
> rpm.<< 
> 
>    Well, I'm big but I'm weak (:?}}}
>     I have the rpm at 1000 rpm for the Steinway block.  This slower speed 
> increases the chip retention in the flutes, so  I usually drill half way, 
> lift the quill, then go all the way through.  The Bolduc I used last seemed 
> 
> to be about identical. 
>       I think that the feed rate is more important than the rpm, though.  
> As 
> you increase the feed, you increase the "wander", so a careful hand can 
> graduate the torque as you approach the top of the piano. I do this by 
> using 
> a faster feed as I reach the upper part of the "C" range and then again as 
> I 
> do the last octave or so.  A niggling point perhaps, but I live with all of 
> 
> my blocks, they become the pianos I also tune,so I really want them to be 
> comfortable and durable.   
> Regards, 
> Ed Foote
> 


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