[pianotech] Tuning Pin Replacement AFTER CA Glue

[Ron Nossaman]

John, Jim,
The whole point of double drilling is to eliminate almost all 
of the speed/feed/cooling angst of how we were taught it MUST 
be done, and to produce a statistically more uniform and 
superior hole in the process of expending much less care and 
personal trauma in the process. I can't imagine how anyone 
could defend the old way in the face of superior results 
gotten with a vastly less touchy and anal approach. Maybe it's 
like Jim said, that they can feel all warm that they got THAT 
CLOSE to getting a decent pin fit this time - at last! Maybe a 
new state of the art drill press and $100 Titanium bits will 
finally put them in the winners circle? Don't you hold your 
nose and get the medicine down as quickly as possible, so it 
can do you some good? Why are people so insistent on defending 
and savoring the misery? There's plenty of that to go around 
that's still unavoidable.
Ron N


Jim Busby wrote:
> Hi John,
>  
> After doing it Ron's way (2 passes) for several years now I can't see 
> any sense in doing it any other way. It's dang near foolproof. The first 
> pass is a cheap jobbers bit, and the second pass is hardly any friction 
> because you're removing very little wood. Speed isn't an issue. "Burning 
> the hole" - not an issue. Ron says it's an old machinists trick that's 
> been used for years.
>  
> Some people seem to just need to do things the way they have always done 
> them. I know people who still use a typewriter instead of a 
> computer/word processor. Works for them, so why change?
>  
> And maybe people like the thrill of drilling at just the right speed and 
> exact feed rate knowing that if they don't get it just right the 
> pinblock will have permanent problems.  <G>
>  
> Jim
>  
>  
> ------------------------------------------------------------------------
> *From:* pianotech-bounces at ptg.org [pianotech-bounces at ptg.org] On Behalf 
> Of John Ross [jrpiano at win.eastlink.ca]
> *Sent:* Tuesday, September 22, 2009 4:02 PM
> *To:* pianotech at ptg.org
> *Subject:* Re: [pianotech] Tuning Pin Replacement AFTER CA Glue
> 
> *One thing to note on the drilling.*
> *The speed used is critical.*
> *I can't remember what happens. But, too fast is one way, and too slow 
> is the other way, either tight or loose.*
> *So the drill bit might have been the right size.*
> *It always pays to do some test drillings. I like Ron's idea of two 
> passes, which would possibly do away with the too fast or too slow 
> scenario.*
> *Hopefully someone will elaborate.*
> *John Ross*
> *Windsor, Nova Scotia.*