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How in the world does one achieve that stained glass looking rosette look? I’ve seen some really interesting ones from Jason Kostal. Does one piece together a flat of the design and then just cut the rosette from that ?
Was just curious as to if anyone here had attempted it.


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I'm not a fan the look, but I do segmented rosettes by supergluing segments to a 0.4 or 0.8mm ply backing and then cut out the rosette itself, inlay into the top, then rout purfling grooves and fit.
Also works for delicate rosettes like spalted wood or burrs etc.

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The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.

I did this for the WILS in 2013. It was done just by routing out the rosette trench and carefully cutting each piece to fit and tacking it in with a dab of HHG. Then it was filled with black epoxy and leveled. I had saved a lot of shell scrap thinking I could use it for somethjing like this but to get a nice even look I wound up laying out and cutting each piece...

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Brian

You never know what you are capable of until you actually try.

https://www.howardguitarsdelaware.com/

Very unique and super labor intensive! Thanks for sharing


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I have done a couple of these. Yes, as you predicted, you cut lots of individuat pieces and glue them together with bits of black or bwb purfling strip between them. Do it on a flat board like making a jig-saw puzzle. You just make up a square (or a donut, since the middle is discarded) and then cut the ring out and inlay it as a single piece. Jason Kostal makes his beautiful multi-coloured ones from maple or other light timbers which are pre-dyed. The trick there is to get the dye to penetrate so that it doesn't just sand off. I have not done coloured woods for mine, I just save offcuts of woods with different naturally occuring colours and make a mosaic with them. It is fiddly and takes quite a while - but I love the result.

Check out Voss guitar. He does a tutorial on his site
http://startingvossguitars.blogspot.com/2014/12/rosette-no2.html

The site above gives a very good tutorial on how to make the rosette. If you're looking to use dyed burl like Jason he had mentioned to me that he puts the dye and burl in a pressure cooker at a low setting for a a day or two so that the dye fully penetrates the wood