[pianotech] composite pinblock- Drill bit size

[Terry Farrell]

Yeah, but that is not just any ordinary mahogany pinblock - it's a  
mezo-thermalized-stabilized-tropicalized mahogany pinblock!!!

Fortunately, I still service this piano and will likely for some time  
to come!  :-)   (It's a frickin' dream - thanks Del Fandrich for the  
design work!!!)

Terry Farrell

On Sep 30, 2010, at 5:42 PM, William Truitt wrote:

> I can just hear the tuner who comes in behind you.  "What a shlub  
> this guy
> is, he put in a cheap0 mahogany pinblock!!!"
>
> Will Truitt
>
> -----Original Message-----
> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org]  
> On Behalf
> Of Terry Farrell
> Sent: Thursday, September 30, 2010 12:17 PM
> To: pianotech at ptg.org
> Subject: Re: [pianotech] composite pinblock- Drill bit size
>
> IMHO Ron Nossaman's advice on drilling a bunch of test holes is spot  
> on - I
> always do that with every block. The first time you drill a  
> different type
> of block you'll be drilling more test holes. Drill bits get dull,  
> drill
> chucks have different amounts of run-out, different techs will use  
> different
> feed rates, etc., etc.
>
> If you are doing an open pinblock, are you putting a nice veneer of  
> hard
> hardwood on the upper face? You can really make that area pretty if  
> you do.
>
> Below is a picture of an open pinblock made of multilam maple, an 8 mm
> Delignit pinblock cap and about a 1 mm veneer of some a South American
> tropical hardwood called Jatoba. Jatoba looks a lot like mahogany  
> (that's
> what the piano case was) and is extremely hard (figured that would  
> work well
> on the pinblock top. Jatoba has a Janka hardness rating of 2350 -  
> whereas
> hard maple has a janka hardness rating of 1450.
>
>
>