[pianotech] hitch pin hole

[Delwin D Fandrich]

Versus "vacuum" casting. Green sand--actually slightly damp sand plus a
binder--molds have been the traditional casting method since the days of
Babcock. Molds held together by plastic film and vacuum are more recent.

ddf

Delwin D Fandrich
Piano Design & Fabrication
6939 Foothill Court SW, Olympia, Washington 98512 USA
Phone  360.515.0119 — Cell  360.388.6525
del at fandrichpiano.com — ddfandrich at gmail.com


-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Dempsey Jr., Paul E
Sent: Monday, December 05, 2011 7:05 AM
To: 'pianotech at ptg.org'
Subject: Re: [pianotech] hitch pin hole

Del,

Can you expand a bit on the term "green sand casting?" Versus what?

Thanks

Paul E. Dempsey, RPT
Piano Technician Sr.
Marshall University
Huntington, WV
304-696-5418
304-617-1149