CAD Plans...YES!
I'm still waiting too.... 
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| Getting those compund angles right... http://w-ww.luthiersforum.com/forum/viewtopic.php?f=10102&t=3672 |
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| Author: | Daniel M [ Mon Oct 31, 2005 9:12 am ] |
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Hello good people; I'm hoping that (at least) one of you resident geniuses can help out with a little problem. When making the shoulder cuts for the neck tennon, I find it easiest if I can get the setback angle & the relief angle (to get the curved sides to exit smoothly) cut accurately at one time. I have tried several methods with varying degrees of success. However I do it, it takes a long time & the results could always be a little better. Anyone got a "dead on" method for making this critical cut? Many thanks in advance... Dan'l |
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| Author: | John How [ Mon Oct 31, 2005 9:15 am ] |
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You didn't say but it sounds like the spanish heel of a classical? If your building steel, why not check out some of the cool and adjustable neck jigs here at the OLF. I believe Brock has one and Mr. Woolson as well. The jig and a router and your ready to kick some serious tenon. |
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| Author: | JJ Donohue [ Mon Oct 31, 2005 9:19 am ] |
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Paul Woolson has a jig that does this. It mirrors the angle of the neck block mortise with that of the neck tenon. There was a post a few weeks back that said he might collaborate with someone to do a CAD drawing of the jig. I'm holding off on my next build in hopes that the plans will be available soon. |
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| Author: | Daniel M [ Mon Oct 31, 2005 3:50 pm ] |
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Thanks for the replies Guys! John; I have only recently started using a bolt-on M/T neck joint. My previous guitars, built years ago, were Spanish heel... A` La Charles Fox of the Vermont School era... Perhaps I'm overcomplicating the process, since I learned the Spanish heel method first. I was assuming that it would be preferable to get the compound angle cut in one slice. It might be easier (& quicker) to cut the mortice with the correct setback angle & flat shoulders... & then cut the relief back with a chisel. JJ. I'll watch for Paul's cad drawing & see if it's helpful... Thanks, Dan'l |
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| Author: | L. Presnall [ Tue Nov 01, 2005 12:10 am ] |
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CAD Plans...YES! I'm still waiting too....
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| Author: | Pwoolson [ Tue Nov 01, 2005 12:30 am ] |
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I have drawn them up and sent them to Michael P to put in a format that can be read my normal humans. We're currently doing a back-and-forth of questions/answers but, depending on his work schedule, I don't think it should be much longer. |
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| Author: | John How [ Tue Nov 01, 2005 12:31 am ] |
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Daniel, there are many ways to skin this ca......t (sorry for the fowl language Don) and I have tried many of them and may not have found the best yet. Typically I will try to get the neck angle right or as close as possible when I cut the tenon. Then I'll undercut inside the cheeks at the base of the tenon with a saw. Once the shape of the heel has been established I will comtinue to undercut (usually with a dremel) until there is just a 1/4" contact area along the edge of the cheek and I can just use the sandpaper floss method to fit that in just a few minutes time. |
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| Author: | Michael Dale Payne [ Tue Nov 01, 2005 12:31 am ] |
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Hay guys I working on the cad drawings of Pauls neck tenon station. It may be a week or two more due to over time at work. Really got slamed this past week. two trips to big D and a boat load of new pumping units to design. I am getting this weekend off one way or another and plan to stay on it if I can. But it will be comming soon.
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