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Thread: Question about a radiused back

  1. #1
    Join Date
    Sep 2016
    Location
    Philadelphia
    Posts
    4

    Default Question about a radiused back

    Hello, I'm new to your forum so I apologize if this has been answered previously.
    The ukes I've built before had a back that curved in only one direction (front to back). I'm planning to build a baritone uke next and the plans show the back curved in both dimensions, with a taper towards the heel and curved bracing.
    It seems to me that it would be difficult to bend the wood into a compound curve like this. Are there any tricks involved? Or do you just muscle the back into place with brute strength clamping?
    Thanks in advance.

  2. #2
    Join Date
    Oct 2014
    Location
    Little River, California
    Posts
    1,980

    Default

    At least with me, there is no brute force needed. If your back is sanded down to 60-70 mil (~ 1.8mm), it bends and takes the radius of the braces quite easily. However, the back isn't tapered, the sides are so I'm a little confused when you say you want to taper the back. The radiused back lays flat to the tapered sides. Hope that helps.

    Sorry, this post is confusing even to me and I wrote it. Perhaps a real luthier will reply.
    Last edited by sequoia; 09-24-2016 at 06:01 PM.

  3. #3
    Join Date
    May 2010
    Location
    Cairns, Australia
    Posts
    2,269

    Default

    Do a search on radius dishes and go-bars. That should give you more than enough info for you reading pleasure for weeks on end. Search acoustic guitar forums to get even more results. Standard practice there.

    It's very simple, and the back will easily conform to the shape.

  4. #4
    Join Date
    Sep 2016
    Location
    Philadelphia
    Posts
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    Default

    Thanks! And yes, I should have said that the sides are tapered, they are narrower at the neck than at the heel, but not in a straight line.

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