<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 6.00.2800.1106" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY> <DIV><FONT color=#800080>Comments below:</FONT></DIV> <DIV><FONT color=#800080></FONT> </DIV> <DIV><FONT color=#800080>Terry Farrell</FONT></DIV> <DIV> <SPAN id=__#Ath#SignaturePos__></SPAN> </DIV> <DIV>----- Original Message ----- <DIV>From: "Ron Nossaman" <<A href="mailto:RNossaman@cox.net">RNossaman@cox.net</A>></DIV> <DIV>To: "Pianotech" <<A href="mailto:pianotech@ptg.org">pianotech@ptg.org</A>></DIV> <DIV>Sent: Saturday, March 08, 2003 2:22 PM</DIV> <DIV>Subject: Re: Epoxy Man Strikes Again</DIV></DIV> <DIV><BR></DIV> <DIV>> <BR>> >My first bridge that I will be gluing on has rib = spacing varying from <BR>> >about six inches to three inches apart. My understanding is that you <BR>> >suggest that one screw/button = placed every three to six inches (mid way <BR>> >between each rib) along = the bridge will provide sufficient clamping for a <BR>> >Tightbond joint?<BR>> <BR>> Yes, it always has.<BR></DIV> <DIV><FONT color=#800080>Thank you for the clarification. I'm sure if = it works for you, it will work for me. (I think!)</FONT><BR>> <BR>> = >Might the fearful feel better if a larger block of wood is used <BR>> = >temporarily instead of a button?<BR>> <BR>> You can if you like, but it won't measurably improve the joint. Truly, it <BR>> works just like we = said, and produces a joint that far exceeds the minimum <BR>> physical = requirements for that joint.<BR></DIV> <DIV><FONT color=#800080>Ok, Ok, but its so scary! Ok master, I will = trust and proceed.............<BR></FONT><BR>> >With your process do you see = good glue squeeze-out mid-way between screws <BR>> >(as in on the top = side of the board at rib locations)?<BR>> <BR>> Yep. You know the bridge = isn't going to deflect much in that 6" span, and <BR>> that 8mm spruce = panel isn't going to let the resistance offered by a small <BR>> pool of Titebond = bend it enough to spoil the joint either. Not by a long <BR>> shot.<BR></DIV> <DIV><FONT color=#800080>No doubt, I'll report back. But I'm sure = you are on-track.</FONT></DIV> <DIV><FONT color=#800080> <BR></FONT>> >Maybe part of my = problem is I am imagining this floppy panel - but I <BR>> >suppose it won't be = so floppy after ribs are attached.<BR>> <BR>> Yes, the ribs make it = stiffer in the direction in which it was floppy, and <BR>> in the other = direction, it never was floppy enough to be a problem. Wave <BR>> that panel around = some after you get the ribs on. Pound on it. Push on it. <BR>> Try to bend = it (careful of the edges, and don't dent it up). Marvel at how <BR>> = something that relatively light can be that stiff. That thing becomes it's = <BR>> own clamping caul.</DIV> <DIV> </DIV> <DIV><FONT color=#800080>That's what I am looking forward to. I = expected a shipment of spruce last fall. Been hard to get exactly what I was = looking for. I think I have located what I need, and if the world does not fall apart = in the next two weeks, I should have several hundred feet of prime Sitka Spruce = to make soundboards from very soon. I am soooooo looking forward to that. The = feeling of holding that very light, very strong stucture in my hands and = flopping it around. I am sooooo looking forward to the first one. I do believe it = will require a number of candles, a whole lot of respect for nature and the = materials it produces, and perhaps some small sacrifice to commemorate the occassion.......Hmmmmmm, when is the next full moon? This will be a VERY = big deal around here!!!!!!!<BR></FONT>> <BR>> Ron N<BR>> <BR>> _______________________________________________<BR>> pianotech list = info: <A href="https://www.moypiano.com/resources/#archives">http://www.ptg.org= /mailman/listinfo/pianotech</A></DIV></BODY></HTML>