You know you should be showing us some photos... David Ilvedson, RPT Pacifica, CA 94044 ----- Original message ---------------------------------------- From: "Ron Nossaman" <rnossaman at cox.net> To: "Pianotech List" <pianotech at ptg.org> Received: 11/2/2006 4:40:46 AM Subject: Re: Milestone >> Two soundboards at once (concurrently), or two soundboards in a row (one >> after the other)? >Overlapped. After the last of a given rib radius was glued on >one board, the clamp moved to the next. The big radius had the >most ribs, so the process slowed down considerably toward the >end as I did something else, like chiseling glue squeeze out, >for the 10-15 minutes between clamp moves. Another big radius >clamp would have been really handy, but it's not like this >comes up that often. >>If at the same time, you must have at least four or >> six pneumatic presses - and the presses must have interchangeable cauls? >> Yes? >Five pneumatic clamps, each with a fixed radius. >> I usually reserve a full day to rib a board - not that it takes that >> long of course. I find that I do lots of other unrelated tasks while >> glue dries, etc. I guess I value the luxury of having the time to take a >> deep breath and concentrate on what I am doing - maybe I'm just paranoid >> of screwing something up. >I was paying attention as hard as I could. >> How many times did you check to be sure that the right rib #1, etc. was >> being glued to the correct panel???? >I did all that beforehand. When I cut the ribs out, I lay them >in the rim mortises as I go. When I'm done, I number them. As >I'm locating them on the panel, I mark and number the position >of the ends, so I don't turn the ribs wrong end to when I >install them. With two pianos going (Fischer and Baldwin), the >ribs were numbered B1, B2, F1, F2, etc. A partially sighted >lame ape could have gotten them in the right place after all >that, so I figured I had a pretty good chance. >> This sounds great. Congrats. I'm just trying to picture it. I'm afraid >> of what mistakes I would make if I tried it! ;-) >> >> Terry Farrell >My only screw-up (that I've noticed so far) was hitting a long >rib with the air pressure too quickly and having it bow >sideways (it was pinned toward the ends) as it skated on the >wet glue. I straightened it out, cleaned it up, and was a >little more cautious with the valve after that, and there were >no more surprises. You know, shop stuff. >Ron N
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