SteveSmith wrote:
I've done it the hard way by taking a lot of time to trim each piece a little at a time. Would love to hear of an easy way.
It seems the Gibson way was to trim it roughly to length and hope for the best. Probably a bit faster
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| rosette https://luthiersforum.com/forum/viewtopic.php?f=10101&t=53791 |
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| Author: | Ruby50 [ Wed Dec 23, 2020 9:23 pm ] |
| Post subject: | rosette |
A lot of early rosettes don't have a fretboard overlapping them so the inlaid rings have to meet with no gap. How is this done - a lot of experience? Laying the ring in and cutting its length against the first end? A lot of ukes have this too Ed M |
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| Author: | SteveSmith [ Wed Dec 23, 2020 10:23 pm ] |
| Post subject: | Re: rosette |
I've done it the hard way by taking a lot of time to trim each piece a little at a time. Would love to hear of an easy way. |
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| Author: | oval soundhole [ Wed Dec 23, 2020 10:52 pm ] |
| Post subject: | Re: rosette |
SteveSmith wrote: I've done it the hard way by taking a lot of time to trim each piece a little at a time. Would love to hear of an easy way. It seems the Gibson way was to trim it roughly to length and hope for the best. Probably a bit faster
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| Author: | Pmaj7 [ Wed Dec 23, 2020 10:58 pm ] |
| Post subject: | Re: rosette |
I've always wondered that too! I assume if it was plastic they could always melt it a little bit with acetone... Pat |
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| Author: | DennisK [ Wed Dec 23, 2020 10:59 pm ] |
| Post subject: | Re: rosette |
You could get pretty close by multiplying the diameter of the circle by pi 
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| Author: | Clay S. [ Thu Dec 24, 2020 12:24 am ] |
| Post subject: | Re: rosette |
You can scarph the ends of each purfle at a different place. Since the lines are relatively thin, if you make them reasonably tight your eye won't be drawn to a particular place as it would if they were all butt joined at one spot. In some cases it may be easier to build it up around a form and then inlay the finished rosette in one piece. |
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| Author: | ballbanjos [ Thu Dec 24, 2020 5:49 am ] |
| Post subject: | Re: rosette |
Clay S. wrote: You can scarph the ends of each purfle at a different place. Since the lines are relatively thin, if you make them reasonably tight your eye won't be drawn to a particular place as it would if they were all butt joined at one spot. In some cases it may be easier to build it up around a form and then inlay the finished rosette in one piece. That's how I've done it, doing each band as Steve said earlier--a little bit at a time. Dave |
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| Author: | Bob Orr [ Thu Dec 24, 2020 6:56 am ] |
| Post subject: | Re: rosette |
I cut the end at about 25 degrees and then overlap them. This gives some wiggle room rather than trying to get a tight butt join |
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| Author: | jfmckenna [ Thu Dec 24, 2020 9:34 am ] |
| Post subject: | Re: rosette |
Yup scarf joint is the way to go for that. I've done it but anyone with good eyes can still see it. |
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| Author: | Pat Foster [ Thu Dec 24, 2020 3:26 pm ] |
| Post subject: | Re: rosette |
If it's grainy wood for the main ring, scarf joint. Scarf for the purfling too. I don't put them all in one place at 12:00, rather scatter them around. Makes them harder to find, heh heh. Attachment: A.png
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| Author: | Pmaj7 [ Fri Dec 25, 2020 12:15 am ] |
| Post subject: | Re: rosette |
Originally, I was thinking side to side scarf joints. But now I'm thinking you all are talking about top to bottom scarfs? Pat |
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| Author: | SteveSmith [ Fri Dec 25, 2020 6:43 am ] |
| Post subject: | Re: rosette |
Pmaj7 wrote: Originally, I was thinking side to side scarf joints. But now I'm thinking you all are talking about top to bottom scarfs? Top to bottom works best for me. I cut the channel so that the purflings and other parts are a bit proud. That allows a few thou of slop during install. I also stagger the scarfs in different places around the rosette.
Pat |
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| Author: | bluescreek [ Fri Dec 25, 2020 8:58 am ] |
| Post subject: | Re: rosette |
this is a lot easier than one may think. I use a scarfed joint if you have a multi martin style cut an angle about 3 times the height. The overlay side you can use a tweezers to locate the length and cut the overlap to match the angle it lays on. Also stagger the rings so the joints are at different places I use duco cement for all rosettes. allow proper cure time when you are using acetate plastic ( 6 hr ) before sanding |
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| Author: | johnparchem [ Fri Dec 25, 2020 9:08 am ] |
| Post subject: | Re: rosette |
I used the top to bottom scarfs with when I did this. It was possible to line up the ends as they stack on top of each other. |
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| Author: | pkdz [ Fri Dec 25, 2020 4:08 pm ] |
| Post subject: | Re: rosette |
I was thinking of a jig like this. It would give you a nice scarf joint but unfortunately some math would be involved Attachment: Screenshot rose1.jpg Attachment: Screenshot rose2.jpg
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| Author: | Ruby50 [ Fri Dec 25, 2020 6:54 pm ] |
| Post subject: | Re: rosette |
Boy this is a great forum. Lots of ideas. I have used a scarf when binding the inside of a soundhole and it makes sense to use it for the rosette too Thanks all Ed M |
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| Author: | Michael.N. [ Sat Dec 26, 2020 10:51 am ] |
| Post subject: | Re: rosette |
It's difficult to get truly seamless joints in wood. I've tried various methods, scarf, mitre and the wallpaper joint. All of them are capable of being near perfect or somewhat visible. You see them on romantic guitars such as Lacotes and many, many others. A very common rosette during that period. I refer to them as a closed ring rosette. |
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| Author: | bluescreek [ Sun Dec 27, 2020 11:35 am ] |
| Post subject: | Re: rosette |
https://www.youtube.com/watch?v=ma0AK0H8eIc&t=5s here you go this is how I do it |
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| Author: | TerrenceMitchell [ Mon Dec 28, 2020 10:21 am ] |
| Post subject: | Re: rosette |
ballbanjos wrote: Clay S. wrote: You can scarph the ends of each purfle at a different place. Since the lines are relatively thin, if you make them reasonably tight your eye won't be drawn to a particular place as it would if they were all butt joined at one spot. In some cases it may be easier to build it up around a form and then inlay the finished rosette in one piece. That's how I've done it, doing each band as Steve said earlier--a little bit at a time. Dave +1 |
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| Author: | bluescreek [ Wed Dec 30, 2020 8:26 am ] |
| Post subject: | Re: rosette |
https://www.youtube.com/watch?v=gXamzTHr8zA&t=3366s here is a video I hope you enjoy on rosette installation |
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| Author: | charlton [ Wed May 19, 2021 9:33 am ] |
| Post subject: | Re: rosette |
Pat Foster wrote: If it's grainy wood for the main ring, scarf joint. Scarf for the purfling too. I don't put them all in one place at 12:00, rather scatter them around. Makes them harder to find, heh heh. Attachment: A.png Pat, I have to ask...what is the wood that you're using for your purfling/rosette there? It looks great! |
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| Author: | charlton [ Wed May 19, 2021 9:43 am ] |
| Post subject: | Re: rosette |
charlton wrote: Pat Foster wrote: If it's grainy wood for the main ring, scarf joint. Scarf for the purfling too. I don't put them all in one place at 12:00, rather scatter them around. Makes them harder to find, heh heh. Attachment: A.png Pat, I have to ask...what is the wood that you're using for your purfling/rosette there? It looks great! I found out in another thread that it's Amboyna Burl. Beautiful! |
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| Author: | BradHall [ Wed May 19, 2021 3:45 pm ] |
| Post subject: | Re: rosette |
John, thanks for the video. I’ve always wondered how to go about the offset rosettes. Now I get it and will incorporate one into a future build. |
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