Pianotech

Hello,

I finally have all the strings, and am ready to restring my grand piano.  I pre-drilled the pinblock, so I am trying to figure out the best way to align the holes in the tuning pin bushings to the holes in the Delignit pinblock. I am thinking about taking a right angle drill and coming in through the bottom of the pinblock with a slightly smaller diameter drill bit. I would intentionally dull the bit under the tip portion to decrease the risk of enlarging the pinblock holes. Am I on the right track or doing it the hard way? Any tips, tricks or methods would be appreciated.

 Thanks!

Hello,

I finally have all the strings, and am ready to restring my grand piano.  I pre-drilled the pinblock, so I am trying to figure out the best way to align the holes in the tuning pin bushings to the holes in the Delignit pinblock. I am thinking about taking a right angle drill and coming in through the bottom of the pinblock with a slightly smaller diameter drill bit. I would intentionally dull the bit under the tip portion to decrease the risk of enlarging the pinblock holes. Am I on the right track or doing it the hard way? Any tips, tricks or methods would be appreciated.

 Thanks!

Hello,

I finally have all the strings, and am ready to restring my grand piano.  I pre-drilled the pinblock, so I am trying to figure out the best way to align the holes in the tuning pin bushings to the holes in the Delignit pinblock. I am thinking about taking a right angle drill and coming in through the bottom of the pinblock with a slightly smaller diameter drill bit. I would intentionally dull the bit under the tip portion to decrease the risk of enlarging the pinblock holes. Am I on the right track or doing it the hard way? Any tips, tricks or methods would be appreciated.

 Thanks!

Sorry for the confusion. Yes, Wim, I used the procedure you described exactly. I only meant that I am not drilling the pinblock through the plate after I installed it. 

Hello,

I finally have all the strings, and am ready to restring my grand piano.  I pre-drilled the pinblock, so I am trying to figure out the best way to align the holes in the tuning pin bushings to the holes in the Delignit pinblock. I am thinking about taking a right angle drill and coming in through the bottom of the pinblock with a slightly smaller diameter drill bit. I would intentionally dull the bit under the tip portion to decrease the risk of enlarging the pinblock holes. Am I on the right track or doing it the hard way? Any tips, tricks or methods would be appreciated.

 Thanks!

Sorry for the confusion. Yes, Wim, I used the procedure you described exactly. I only meant that I am not drilling the pinblock through the plate after I installed it. 

Hello,

I finally have all the strings, and am ready to restring my grand piano.  I pre-drilled the pinblock, so I am trying to figure out the best way to align the holes in the tuning pin bushings to the holes in the Delignit pinblock. I am thinking about taking a right angle drill and coming in through the bottom of the pinblock with a slightly smaller diameter drill bit. I would intentionally dull the bit under the tip portion to decrease the risk of enlarging the pinblock holes. Am I on the right track or doing it the hard way? Any tips, tricks or methods would be appreciated.

 Thanks!

Sorry for the confusion. Yes, Wim, I used the procedure you described exactly. I only meant that I am not drilling the pinblock through the plate after I installed it. 

Hello,

I finally have all the strings, and am ready to restring my grand piano.  I pre-drilled the pinblock, so I am trying to figure out the best way to align the holes in the tuning pin bushings to the holes in the Delignit pinblock. I am thinking about taking a right angle drill and coming in through the bottom of the pinblock with a slightly smaller diameter drill bit. I would intentionally dull the bit under the tip portion to decrease the risk of enlarging the pinblock holes. Am I on the right track or doing it the hard way? Any tips, tricks or methods would be appreciated.

 Thanks!

Wim, you just saved me many hours of work, thank you! 😊

Sorry for the confusion. Yes, Wim, I used the procedure you described exactly. I only meant that I am not drilling the pinblock through the plate after I installed it. 

Hello,

I finally have all the strings, and am ready to restring my grand piano.  I pre-drilled the pinblock, so I am trying to figure out the best way to align the holes in the tuning pin bushings to the holes in the Delignit pinblock. I am thinking about taking a right angle drill and coming in through the bottom of the pinblock with a slightly smaller diameter drill bit. I would intentionally dull the bit under the tip portion to decrease the risk of enlarging the pinblock holes. Am I on the right track or doing it the hard way? Any tips, tricks or methods would be appreciated.

 Thanks!

Wim, you just saved me many hours of work, thank you! 😊

Sorry for the confusion. Yes, Wim, I used the procedure you described exactly. I only meant that I am not drilling the pinblock through the plate after I installed it. 

Hello,

I finally have all the strings, and am ready to restring my grand piano.  I pre-drilled the pinblock, so I am trying to figure out the best way to align the holes in the tuning pin bushings to the holes in the Delignit pinblock. I am thinking about taking a right angle drill and coming in through the bottom of the pinblock with a slightly smaller diameter drill bit. I would intentionally dull the bit under the tip portion to decrease the risk of enlarging the pinblock holes. Am I on the right track or doing it the hard way? Any tips, tricks or methods would be appreciated.

 Thanks!

Wim, you just saved me many hours of work, thank you! 😊

Sorry for the confusion. Yes, Wim, I used the procedure you described exactly. I only meant that I am not drilling the pinblock through the plate after I installed it. 

Hello,

I finally have all the strings, and am ready to restring my grand piano.  I pre-drilled the pinblock, so I am trying to figure out the best way to align the holes in the tuning pin bushings to the holes in the Delignit pinblock. I am thinking about taking a right angle drill and coming in through the bottom of the pinblock with a slightly smaller diameter drill bit. I would intentionally dull the bit under the tip portion to decrease the risk of enlarging the pinblock holes. Am I on the right track or doing it the hard way? Any tips, tricks or methods would be appreciated.

 Thanks!

My understanding is that there is a fundamental difference in principle between bushed and non-bushed pinblock/plate mating. 

A non-bushed plate transfers the entire stress load to the plate flange, therefore requiring a very close fit throughout to donits job as designed. The bushed plate spreads the stress load out between all 230 or so tuning pin holes, and in effect actually pulls the pinblock away from the flange slightly making block/flange fit less critical.  The height of the coil on the tuning pins also has some effect on this, the higher they are the more pull back. Nonetheless I still shoot for as good a fit as I can get when I replace a block no matter whether bushings exist or not. 

Peter Grey Piano Doctor 

Wim, you just saved me many hours of work, thank you! 😊

Sorry for the confusion. Yes, Wim, I used the procedure you described exactly. I only meant that I am not drilling the pinblock through the plate after I installed it. 

Hello,

I finally have all the strings, and am ready to restring my grand piano.  I pre-drilled the pinblock, so I am trying to figure out the best way to align the holes in the tuning pin bushings to the holes in the Delignit pinblock. I am thinking about taking a right angle drill and coming in through the bottom of the pinblock with a slightly smaller diameter drill bit. I would intentionally dull the bit under the tip portion to decrease the risk of enlarging the pinblock holes. Am I on the right track or doing it the hard way? Any tips, tricks or methods would be appreciated.

 Thanks!

My understanding is that there is a fundamental difference in principle between bushed and non-bushed pinblock/plate mating.

A non-bushed plate transfers the entire stress load to the plate flange, therefore requiring a very close fit throughout to donits job as designed. The bushed plate spreads the stress load out between all 230 or so tuning pin holes, and in effect actually pulls the pinblock away from the flange slightly making block/flange fit less critical.  The height of the coil on the tuning pins also has some effect on this, the higher they are the more pull back. Nonetheless I still shoot for as good a fit as I can get when I replace a block no matter whether bushings exist or not.

Peter Grey Piano Doctor 

Wim, you just saved me many hours of work, thank you! 😊

Sorry for the confusion. Yes, Wim, I used the procedure you described exactly. I only meant that I am not drilling the pinblock through the plate after I installed it. 

Hello,

I finally have all the strings, and am ready to restring my grand piano.  I pre-drilled the pinblock, so I am trying to figure out the best way to align the holes in the tuning pin bushings to the holes in the Delignit pinblock. I am thinking about taking a right angle drill and coming in through the bottom of the pinblock with a slightly smaller diameter drill bit. I would intentionally dull the bit under the tip portion to decrease the risk of enlarging the pinblock holes. Am I on the right track or doing it the hard way? Any tips, tricks or methods would be appreciated.

 Thanks!