---------------------- multipart/mixed attachment Thanks Phil. I appreciate the story. Sounds like I have some work to do=20 making the adjusted radius on the caul piece. Should prove to be a good=20 lesson. I wasn't easy maneuvering a 6" x 12" x 48" stack through a 1/4"=20 bandsaw blade. I guess I get to try again (with one of the pieces anyway). Greg At 02:34 PM 6/2/2003, you wrote: >Perhaps an example will answer your question. I recently laminated a=20 >molding piece for an upright piano. On this piano the transition from=20 >side to front was a curve (a portion of a circle). A molding piece ran=20 >around the bottom of the case. The portion in the curved area was=20 >missing. I measured the thickness of the remaining molding and found it=20 >to be 1/2 inch. I laid a piece of paper on the top edge of the case and=20 >traced the circle. I then took a compass and adjusted its radius until it= =20 >matched the tracing. I drew the inner curve with this. I laid the=20 >compass on a ruler and determined the radius. I added 1/2 inch to this=20 >number (the thickness of my desired molding) and adjusted the compass to=20 >this figure with the ruler. I then drew the outer curve with this. One=20 >thing to keep in mind if you are using an inner and outer mold (as opposed= =20 >to the flexible sacrificial piece suggested by Ron) is that the thickness= =20 >of the laminate stackup has to be pretty close to the! > desired figure (in my case 1/2 inch) >or you won't get good clampup. So, in my case, if I were using 5 >laminations they would need to be pretty close to 1/10 inch each. Much=20 >more or much less and I wouldn't get good clampup along the whole curve. > >Phil F > >At 11:01 AM 6/2/03 , you wrote: > >Thank you Phil. I'll ask you the same question as I did Ron. How do you > >figure the 2 separate radii? > >Greg > > > >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives Greg Newell Greg's piano Fort=E9 mailto:gnewell@ameritech.net=20 ---------------------- multipart/mixed attachment--
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