Pinblock drilling. Trying again for help!

[Farrell]

"What drilling speed do you use on pinblocks?"

I think most references suggest about 800 to 1,200 RPM (sorry, Reblitz not
at my fingertips). I drilled a rotary-cut 7-ply block recently and had the
bit spinning at 600 rpm. SOOOoooooo many variables here. I think these
speeds are a good place to start. I suggest to get a chunk of the block type
you will be using and drill, drill, drill at various speeds, see how it
feels. Pound in a buch of pins and see how they feel. When you get a
combination that gives the desired smooth torque, write it down and do the
whole block that way.

Are you using compressed air to cool the bit? I think this is pretty much a
must. Worked great for me. Good luck.

Terry Farrell
Piano Tuning & Service
Tampa, Florida
mfarrel2@tampabay.rr.com

----- Original Message -----
From: "Richard Oliver Snelson" <rsnelson@dave-world.net>
To: <pianotech@ptg.org>
Sent: Monday, November 20, 2000 1:56 PM
Subject: Pinblock drilling. Trying again for help!


> Your thoughts on this please?
> I found out today the the Mortiser sold by Garrett turns at 3500 rpm..
> The Delta unit turns at 1750 rpm.. Both too fast???
>
> What drilling speed do you use on pinblocks?
>
>
> Garrett Wade sells a 1/2 hp Hollow Chisel Mortiser that can be fitted
> with a 3 jaw chuck drilling attachment. As  a small drill press the
> Mortiser has a 4" stroke and could be easily mounted to a slide board
> for pinblock drilling in the piano. Because of compact size I think it
> could sit very close to the drilling area.
>
> Garrett Wade's number: 1-800-221-2942 If you want a cat.
>
> If anyone could send me a picture of a drill press set up. Please do..
> Richard
>