I temporarily attach the top and bottom plates to each other using painters tape. After drawing the rough outline of the ribs on one, I cut them out on my scroll saw.
Now I more carefully draw the outline using the ribs held in a better position. I’m using a thin sharpie held away from the ribs about 1/8 inch by a nut. I was thinking I would now whittle away the wood to the line, but I think I may go back to the scroll saw and cut very carefully just outside that line.
-- Ni faru ion el ligno!
8 comments so far
Dave Polaschek
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#1 posted 05-09-2020 11:51 AM
Seems the scroll saw is less likely to follow the grain and make a disastrous mistake. Using hand tools, I would probably use my little bow saw, then spokeshave them down flush once they’re attached to the ribs.
-- Dave - Santa Fe
robscastle
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#2 posted 05-09-2020 12:21 PM
Nice progress Dave , and that’s using your nut!
As for the edge finish I wouldn’t be be game to use anything else but an oscillating sander and disk sander.
-- Regards Rob
Oldtool
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#3 posted 05-09-2020 04:14 PM
I agree with Dave, I think that trimming to match attached components is the way to go, can’t get a better fit than that.
-- "I am a firm believer in the people. If given the truth, they can be depended upon to meet any national crisis. The point is to bring them the real facts." - Abraham Lincoln
Dave Rutan
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#4 posted 05-09-2020 05:34 PM
Bear in mind that the top and bottom is supposed to overhand the ribs on these instruments, unlike on a guitar which is flush.
-- Ni faru ion el ligno!
robscastle
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#5 posted 05-10-2020 08:55 AM
OK its an effect I will just have to go, ...wait and see!
-- Regards Rob
Dave Rutan
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#6 posted 05-10-2020 01:24 PM
Here’s a picture showing the overhang I’m talking about. This is on my store bought violin, so is pretty standard.
-- Ni faru ion el ligno!
Dave Polaschek
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#7 posted 05-11-2020 02:51 AM
I see what you’re talking about, Dave. I’d forgotten the overhang on fiddles. I think I’d still do final shaping after gluing things up, but that’s just my brain using the tools I have at hand. Something like a beading plane or scratch stock would let me get a consistent overhang while shaping things to the profile I was after.
Thanks again for taking the time to explain to us!
-- Dave - Santa Fe
robscastle
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#8 posted 05-18-2020 01:11 PM
OK now I understand ….thank you
-- Regards Rob
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