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| Stew Mac Soundhole/Rosette Cutter Jig http://www-.luthiersforum.com/forum/viewtopic.php?f=10102&t=5320 |
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| Author: | dubell [ Sun Feb 26, 2006 4:26 am ] |
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I am getting ready to inlay my first rosette. I decided to purchase the Stew Mac Precision Router Base and Soundhole/Rosette Cutter Jig. I guess I need the widest Carbide Downcut Inlay Router Bit there is (1/8"). What are some tips on using this setup? My main concern is taking too much material away (diameter wise). So, what do you do?......start in the middle and work your way to the inside and outside edges of the rosette and fit and re-fit until I get it just right. Thanks, Doug |
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| Author: | peterm [ Sun Feb 26, 2006 4:52 am ] |
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Here is my advise: Take it slow....a little at the time.... The bit can take a much as it is wide but depth is the problem area, if you try to take to much material it may catch and do a lot a damage to the top (don't ask me how I know  )
So, 1/32 or so at the time should do a pretty good job to be proud of! 
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| Author: | Lars Rasmussen [ Sun Feb 26, 2006 5:39 am ] |
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I always start with the inner diameter, and then test the outer edge of the rosette where the fretboard covers it. After i have taken the down the inlaid rosette to level I cut out the soundhole, in case I have to re-route. A little tip is to cover the bottom of the jig with tape to prevent it from scratching the top... dont ask ME how I know that .
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| Author: | crowduck [ Sun Feb 26, 2006 9:01 am ] |
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Last year sometime I bought a load of cheap spruce tops off eBay, 10 sets for less than $40. I use them for setting up for these type operations. Sacrificial Spruce. Once I get it 'right on' with the junk top, I move to the good one. CrowDuck |
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| Author: | ATaylor [ Sun Feb 26, 2006 10:03 am ] |
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I found that scoring the inside and outside of the rosette ring with a brand new exacto blade eliminates any tear-out from the router bit. Kind of the same idea as while doing inlay. I cobbled together a circle-cutting mount for the exacto so I didn't have to cut the circle by hand. Helped a lot. |
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| Author: | crowduck [ Sun Feb 26, 2006 11:13 am ] |
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Scoring with the Exacto blade sounds like a good idea, and I forgot to mention put a coat of shellac down, that will help prevent tearout too. CrowDuck |
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| Author: | Serge Poirier [ Sun Feb 26, 2006 4:41 pm ] |
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Great thread guys thanks for the useful tips! |
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