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Truss rod channel question
http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=29462		 Page 1 of 1
Author:  reedclifton [ Wed Oct 13, 2010 1:06 am ]
Post subject:  Truss rod channel question
I just realized..... How do you cut the channel for the truss rod when the neck is already tapered, how do you route a centered chanel? I'm using a dremel 231 table router with a dremel 4000 , and 3/16 routing bit . How do you account for the taper to get a centered channel? Thank you so much if anyone can wrap their head around this, my mind feels fried trying to figure this out .
Author:  Aj White [ Wed Oct 13, 2010 1:54 am ]
Post subject:  Re: Truss rod channel question
Super noob here so take my idea with a grain of salt! ;)
I actually just cut my first channel a few hours ago but I hadn't tapered my neck yet. However I DID put the headstock faceplate on already so I had to "shim" up the neck to have a flat surface to bear on the routing table.
So going with this idea you could tack on two shims or spacers on either side of the center line that ARE square to bear against your fence... they would hang off the edges to create a straight edge. Hope I explained that well enough. [:Y:]

Oh and next time do it before hand!
Author:  reedclifton [ Wed Oct 13, 2010 4:21 am ]
Post subject:  Re: Truss rod channel question
that's totally genius , thanks.
Author:  Edward Taylor [ Wed Oct 13, 2010 6:46 am ]
Post subject:  Re: Truss rod channel question
You can also cut out a piece of MDF or whatever you have lying around the same dimension as the neck, slot it as you would the neck and use that as a guide for the router bit with no fence at all.
Author:  arie [ Wed Oct 13, 2010 10:48 am ]
Post subject:  Re: Truss rod channel question
On my most awesome Hitachi router I drilled/reamed/and pressed two 1/4" dia. steel dowel pins in the fixed base about 4 inches apart. These have to be located on center with the spindle of course. When using, turn the base so each pin rests against a side of the neck -1 pin on the left and 1 pin on the right (the kickback torque from the motor will help). Turn on the router and begin cutting while maintaining constant pressure against the pins. Now all slots are on center no matter what width the neck is and will work whether straight or tapered. Very simple to do for hand held routing.
Author:  Kevin Waldron [ Wed Oct 13, 2010 3:09 pm ]
Post subject:  Re: Truss rod channel question
Make a rectangle template with a slot of correct width (any material that is stable, slightly bigger ok with router table fence ) that can be run through a router table or used with router bit and bearing. Find center of neck, find center of template and line up. Now use small amount of hot glue and join neck to template. Do whatever you need to do then remove template from neck with thin putty knife remove glue and your set.

Kevin Waldron
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