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Back plate
http://mowrystrings.luthiersforum.com/forum/viewtopic.php?f=10101&t=25205
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Author:  Edward Taylor [ Mon Dec 28, 2009 3:22 pm ]
Post subject:  Back plate

So I got my template made up and just pulled out my EIR back out of the sticker pile to trace the outline on, turns out I have a bit of a size problem. On the left plate the template (half template) sits just barley inside (1-2mm) and on the right plate the template sits just barely outside (1-2mm). Can I get away with this, assuming that this will still be well inside the area of the binding? Or will it make it difficult to line everything up and may turn out in disaster?
Thanks

Author:  Michael Dale Payne [ Mon Dec 28, 2009 3:40 pm ]
Post subject:  Re: Back plate

i would rather joint a piece on each side to make the finished plate larger than the template. True this joint will likely be gone once you channel for the binding.

Many many backs are 3 or four piece backs

Author:  Edward Taylor [ Mon Dec 28, 2009 3:52 pm ]
Post subject:  Re: Back plate

Michael, the lower bout is just barely outside the wood. I guess I could cut a piece off near the upper bout and laminate that on for insurance.

Author:  SteveCourtright [ Mon Dec 28, 2009 3:52 pm ]
Post subject:  Re: Back plate

How about a generous center strip between the back pieces just to be sure that you have enough width?

Author:  Edward Taylor [ Mon Dec 28, 2009 4:02 pm ]
Post subject:  Re: Back plate

Thats a good suggestion Steve, though I wasn't planning a backstrip on this one. I do have some rosewood binding on the way from LMI and I guess I could put a strip of that with some BWB purfling on each side. Or just the lamination... idunno

Author:  Michael Dale Payne [ Mon Dec 28, 2009 4:13 pm ]
Post subject:  Re: Back plate

Your upper bout is smaller so take a wedge off each side of the plate at the upper bout edge of the plate. This material would be waist anyway once you cut the profile. The grain orientation will be wrong on the binding anyway. The waist material from the upper bout area will be perfect for this. This will join to the outside edges meaning you can still go without a centerline binding if you wish.

Author:  Edward Taylor [ Mon Dec 28, 2009 4:17 pm ]
Post subject:  Re: Back plate

Yeah, I think that is my best shot here. Thanks!

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