<HTML>In a message dated 1/19/2002 3:22:15 PM Pacific Standard Time, cmpiano@attbi.com writes: <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Subj:Re: Baldwin accu-hitch pins Date:1/19/2002 3:22:15 PM Pacific Standard Time From:<A HREF="mailto:cmpiano@attbi.com">cmpiano@attbi.com</A> Reply-to:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A> To:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A> Sent from the Internet Dale,  I'm trying to set bearing on a modified Emerson.  Modified for accujust hitch pins. From a friend I borrowed the Baldwin instructions. Briefly:::   Without bass strings installed, string treble and set bearing to (zero) with strings at pitch.  No load on board.  Now set specified number of notes starting at bottom to 1 div (.5 degrees). Number of notes depending on model of piano.  Then next group of notes to 2 div (1 degree).  Then the last group to 3 div (1 1/2 degrees).  Lastly install the bass strings and set at pitch to 1 div (.5 degrees).</BLOCKQUOTE>    Carl --with what device are you measuring with. May be that's part of my confusion. lack of info. <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px"> Then I see a note saying -Quote- A bearing value, previously set, cannot be rechecked because the accumulated force of all strings on the bridge will lower the soundboard and reduce the settings which were originally set.</BLOCKQUOTE>    >>>>>>>>        Just as I said in my post <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px"> Pianos equipped with the vertical (acu-just) hitch pins are designed to function with a minimum positive bearing at the bridges, compared with other pianos with string rests and angled hitch pins.    Unquote!!</BLOCKQUOTE>    >>>>>>>>>>Poppy cock. If thats so then crown is not required. <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px"> Now if I designed something that had to be adjusted and then couldn't be checked, I wouldn't admit it.  Just how do you design a piano to not need much bearing?  Sounds too much like advertising garbage mouth to me.  Like,  "Our piano is so dam good that we don't need so much stinkin' down bearing."</BLOCKQUOTE>   Hey--Maybe that's why so many Baldwins sound so dang aweful. Not enough bearing. <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px"> Carl says I'm impressed with the idea, but I'm amused at the rhetoric.   Me too but</BLOCKQUOTE> I think I figured out how iId set it. I would guesstimate some intial setting then I would adjust it untill I'd get a lowell gauge reading similar to what is normal on other pianos with decent crown. 12 to 15 thou. on a fully crowned board <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px"> I haven't felt too spunky the last few days so I'm still adjusting the bearing on this Emerson.  I've noticed that when I started I found some bearing with a regular rocker gauge, but no bearing with either the Lowell gauge or the Baldwin gauge. Both are a pain to use.  I want to look into that.  When I get it fingered out, then you'll all get the finger. Grin.  --------- Carl   Carl, As I see it you've got your own stiky wicket as most uprightswere designed to have little or no crown. Now what do you do with the acu-just? I would opt for the baldwin spec on the upright board ,which is as you say nominal.  Most uprights have little crown(usually none) and little bearing and many still sound pretty good. It' a mostly mass driven system or not much stiffness due to crown compression or bearing load.    Best-----Dale Erwin</BLOCKQUOTE> <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px"> </BLOCKQUOTE> </HTML>