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| suggestions needed for deepening truss rod slot http://w-ww.luthiersforum.com/forum/viewtopic.php?f=10101&t=16580 |
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| Author: | Jody [ Wed Mar 26, 2008 6:40 am ] |
| Post subject: | suggestions needed for deepening truss rod slot |
I am wanting to cut the slot deepr in a stock martin neck , I thought it would be easy enough to get a box core bit 3/8 0r 7/16 and just run the router a few times . but I am unable to find any with the guide bearing top of the cutter, is there another way to do this using basic shop, hand tools . thanks Jody |
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| Author: | Kirt Myers [ Wed Mar 26, 2008 6:47 am ] |
| Post subject: | Re: suggestions needed for deepening truss rod slot |
You can use a very sharp chisel, checking your depth often, or a router plane. Scribe the sides of the channel with a knife to keep the side walls even. Cheers |
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| Author: | Brock Poling [ Wed Mar 26, 2008 8:31 am ] |
| Post subject: | Re: suggestions needed for deepening truss rod slot |
You can make a reasonably long stick that just fits into the truss rod slot and put sand paper on the bottom. I have done this before. It works well if you only have to remove a little. |
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| Author: | Link Van Cleave [ Wed Mar 26, 2008 9:34 am ] |
| Post subject: | Re: suggestions needed for deepening truss rod slot |
If you have a drill press you could make a fence, set the depth you want and drill a series holes with a fornster bit. You can clean up with a chisel used like a scraper. You could also find a bit with the bearing on top (they are out there ) that was smaller in dia. than your exsisting slot. (Much safer that way work from one side then the other. ) You would most likely have to clamp a piece of wood the length of the neck to extend the sides of the existing slot for a bearing guide as using the sides of your exsisting slot might not work out for depth if the bit was too long. You could also use a template guide on your router with a straight bit. again a straight board clamped the right distance from your slot to compensate for the difference between the bit and guide and go from both sides. A plunge router is safest in all cases but can be done carefuly with a standard router. Link |
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| Author: | Chas Freeborn [ Wed Mar 26, 2008 9:37 am ] |
| Post subject: | Re: suggestions needed for deepening truss rod slot |
For a 3/8" slot here's the bit. It's called a Dado clean out cutter. In the olden days the made these without a bearing, so you could get smaller diameters. http://www.amanatool.com/routerbits/dad ... 475-s.html -C |
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| Author: | Jody [ Wed Mar 26, 2008 4:45 pm ] |
| Post subject: | Re: suggestions needed for deepening truss rod slot |
Thanks Kirt,Todd,Brock,Link, and Chas, for taking the time to reply , thanks for the many ideas , I should be able to pull it off with one , or a combination of several, thanks Jody |
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