This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Dale, from your post I assume you assume I'm working on an upright. = It's a grand. I'm using rocker gauges, Lowell. and Baldwin gauges. No = consistency. and a real pain to measure. Just makes me think about a better way to check downbearing. I'm waiting for inspiration. I'm not holding my breath. Carl Meyer Assoc. PTG Santa Clara, California cmpiano@attbi.com=20 ----- Original Message -----=20 From: Erwinspiano@AOL.COM=20 To: pianotech@ptg.org=20 Sent: Saturday, January 19, 2002 4:42 PM Subject: Re: Baldwin accu-hitch pins In a message dated 1/19/2002 3:22:15 PM Pacific Standard Time, = cmpiano@attbi.com writes: Subj:Re: Baldwin accu-hitch pins=20 Date:1/19/2002 3:22:15 PM Pacific Standard Time From:cmpiano@attbi.com Reply-to:pianotech@ptg.org To:pianotech@ptg.org Sent from the Internet=20 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. =20 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). Carl --with what device are you measuring with. May be that's part = of my confusion. lack of info. 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. >>>>>>>> Just as I said in my post 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!! >>>>>>>>>>Poppy cock. If thats so then crown is not required. 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." Hey--Maybe that's why so many Baldwins sound so dang aweful. Not = enough bearing. Carl says I'm impressed with the idea, but I'm amused at the rhetoric. Me too but 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 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 ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/b2/d2/0e/bc/attachment.htm ---------------------- multipart/alternative attachment--
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