<!doctype html public "-//W3C//DTD W3 HTML//EN"> <html><head><style type="text/css"></style><title>Re: [CAUT] Adjusting a magnetic action</title></head><body> <div>Hi Barbara,</div> <div><br></div> <div>1. Measure Up/Down</div> <div>2. Calculate Friction (D-U)/2</div> <div>3. Determine What you want for a Balance Weight</div> <div>4. Calculate new U as BW -F</div> <div>5. Calculate new D as BW + F</div> <div>6. Widen or narrow the magnet gaps by making equal turns in or out on the mag screws to make the new U.  Check that the new D is right.</div> <div><br></div> <div>If your doing a whole action the fastest and calculation free way is to make a set of friction test weights used in combination with touch weights laid out as a balance weight table.  This method is detailed in the PTG journal:</div> <div><br></div> <div>"Mastering Friction with the Balance Weight System Nov 1990</div> <div><br></div> <div>David Stanwood</div> <div><br></div> <div>PS keep notes on the frictions and fix up unevenesses afterwards...</div> <div><br></div> <blockquote type="cite" cite><font face="Arial" size="-1">Howdy,</font></blockquote> <blockquote type="cite" cite> </blockquote> <blockquote type="cite" cite><font face="Arial" size="-1">I'm working on a Steinway B that has had the Stanwood magnet system installed (in the keys--for those of you who aren't familiar with it).  After I get the piano regulated, what is the procedure for adjusting the magnets?</font></blockquote> <blockquote type="cite" cite> </blockquote> <blockquote type="cite" cite><font face="Arial" size="-1">Thank you!</font></blockquote> <blockquote type="cite" cite> </blockquote> <blockquote type="cite" cite><font face="Arial" size="-1">Barbara Richmond, RPT</font></blockquote> <blockquote type="cite" cite><font face="Arial" size="-1">near Peoria, IL</font></blockquote> <div><br></div> </body> </html>