Official Luthiers Forum!

So I have one I'm working on and when I did the rosette there was a bit of chip out. I thought I had managed to fix it, but it reappeared in final sanding.

So I'm wondering if anyone has ever tried to recut a rosette channel after the body is assembled? I'd probably be trying to do the inside and outside edges and then relay in new purfling.

Thanks
Neil

Yup, I've done it and it works well.
You cut a plug with your router rosette rig (make sure it's a tight fit), add a block under it to keep the pin perpendicular, and rout away...

Well Haans that's cleaver as heck.

Thanks alot. I appreciate it.

Neil

Haans,
How thick is your plug? It looks like about twice that of the top.

Yea, that's about right...

cool

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"Preoccupation with an effect gives it power and enhances the error"
from "Your Owner's Manual" by Burt Hotchkiss.

Here is another twist on the previously shown theme. This one might be easier to get in and out of the soundhole yet still hold well.......and it can be made where it's level with the top. I assume sponges or similar material is placed underneath to hold the block in place. These pics were taken by Bill Cory (I assume his idea )

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Formerly known as Adaboy.......

I did it but not as neat looking as the above pics.
Screw a strip of wood under the sound hole. the screw hole will be covered by the finger board. Use a slither of wood and double-sided sticking tape or bluetack or whatever it takes to prop the strip of wood up from the other side of the sound hole.
Find the centre line and mid point of the sound hole. And you're away with your router.
Worked absolutely fine for me. But I like Haans method better.

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We are all in the gutter but some of us are looking at guitars.

Using your router/circle cutter, cut a disc the exact size of your sound hole. When it's free from it's surroundings, it should lift out on the circle cutter pivot. Lift the disc off the pivot, apply double sided tape (or similar) and put it back on the pivot so as the disc sticks to the router base. The disc now acts as a pivot in the sound hole.

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Trevor Gore, Luthier. Australian hand made acoustic guitars, classical guitars; custom guitar design and build; guitar design instruction.

http://www.goreguitars.com.au

what's a circle cutter pivot?

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"Preoccupation with an effect gives it power and enhances the error"
from "Your Owner's Manual" by Burt Hotchkiss.

The pin that your circle cutter rotates on or pivots on.