Well that makes sense. Do you find that the overall shape is precisely duplicated for the same model, i.e. are all S&S model M's the same? If so, would it make sense to make a template in order to minimize handling the panel. I am rather nervous handling panels unsopported by ribs. David Love davidlovepianos@earthlink.net > [Original Message] > From: Ron Nossaman <RNossaman@cox.net> > To: <davidlovepianos@earthlink.net>; Pianotech <pianotech@ptg.org> > Date: 10/30/2003 1:51:18 PM > Subject: Re: Make a soundboard--Measurements > > > >As I start to undertake this process I have been thinking about this and > >how it might be done easily. My thought was to first make a template out > >of masonite once the board is removed. To do this lay a sheet of masonite > >over the top of the rim. Trace a line around the outside of the case. > >Since the case has uniform thickness, you will need to retrace the line > >spaced at the thickness of the case inside the original scribed line. Take > >off an extra 1/8 " which will allow for 1/16" clearance all around. Cut > >out the masonite form which can now be used as a template for all similar > >models. Use the form to cut the panel to the right shape and size. Make > >the ribs and set them into the existing notches in the rim. Lay the panel > >over the ribs and mark on the board the placement from underneath. Then > >glue them on. Comments? > > > >David Love > > > You will find that the rim isn't the same thickness all around, especially > when you cut anything based on that assumption. You may also find that it > is just as easy to lay the panel on top of the rim and mark it from > underneath with a pencil, outlining the inner edge of the rim, and > dispensing with the pattern altogether. Mark the belly rail after the rest > is fitted to your satisfaction. Marking rib placement from underneath with > a pencil works where you can reach, but the last few ribs are difficult, so > you might either be back to making a pattern, or pin locating ribs on the > panel as we discussed pretty extensively a few months ago. > > Ron N
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