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Re: Martin square tube truss rod removal

Posted: Sat Oct 21, 2017 4:55 pm
by 0018G
Here is what I used. It's just a scrap jig I built years ago to hang a heat lamp over cello fingerboards. Add some cardboard and some heavy aluminum foil for shielding and it worked like a champ! Only the truss rod is in the direct heat, and I was able to reach underneath periodically and make sure the neck shaft wasn't getting hot enough to do finish damage.

Re: Martin square tube truss rod removal

Posted: Sat Oct 21, 2017 5:00 pm
by 0018G
Kbore-

I admit I thought about variations on your idea, but I just wasn't confident I could control the heat.

I was also unsure if i could generate enough heat with a lamp to break the epoxy bond, but John was on the money. You could see the epoxy get gooey, and the hottest part of the rod was about 240 degrees at any given point. Hot, but controllable. I used a screwdriver in the end of the tube and GENTLY pried it out as the glue let go. The neck shaft is pretty fragile without the fingerboard, so you must let the heat do the work and not force anything.

Re: Martin square tube truss rod removal

Posted: Sat Oct 21, 2017 6:08 pm
by Kbore
Nice, glad it worked out!! I’ll be cataloging that one.

Re: Martin square tube truss rod removal

Posted: Mon Oct 23, 2017 2:42 pm
by Hoss Guitars
To remove a square Martin truss rod split it full length with a dremmel tool. Widen the slot as much as needed and crunch it in with a vise grip and it will break away.You will have to cut several notches in the wood to get the vise grip in

Re: Martin square tube truss rod removal

Posted: Mon Oct 23, 2017 10:14 pm
by 0018G
Hoss Guitars wrote:To remove a square Martin truss rod split it full length with a dremmel tool. Widen the slot as much as needed and crunch it in with a vise grip and it will break away.You will have to cut several notches in the wood to get the vise grip in
Sounds kind of invasive?