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Martin square tube truss rod removal

Posted: Fri Oct 13, 2017 4:48 pm
by 0018G
Anyone have any tips or tricks for getting enough heat in a Martin square tube rod to get the epoxy to release for removal?

Thanks

Re: Martin square tube truss rod removal

Posted: Fri Oct 13, 2017 6:25 pm
by tippie53
why are you taking it out?

Re: Martin square tube truss rod removal

Posted: Fri Oct 13, 2017 6:39 pm
by 0018G
Conversion to adjustable rod.

Re: Martin square tube truss rod removal

Posted: Fri Oct 13, 2017 9:01 pm
by tippie53
heat
try a heat lamp wrap aluminum foil around some cardboard and expose the rod protect the neck and let heat do the job

Re: Martin square tube truss rod removal

Posted: Fri Oct 13, 2017 9:05 pm
by 0018G
Good idea, John. I used to do all my heating that way, but the blankets have spoiled me.

Thanks!

Re: Martin square tube truss rod removal

Posted: Sun Oct 15, 2017 6:46 pm
by tippie53
this is what you need I dont have a blanket for that LOL

Re: Martin square tube truss rod removal

Posted: Sun Oct 15, 2017 10:42 pm
by Kbore
Could you post a picture? Would like to see what you have going. Do you have access to the interior of the tube?

Re: Martin square tube truss rod removal

Posted: Mon Oct 16, 2017 6:41 pm
by tippie53
yes but it is about 14 in long epoxied in

Re: Martin square tube truss rod removal

Posted: Mon Oct 16, 2017 8:12 pm
by Kbore
Thinking out loud- a 12v car battery connected across the length would turn a metal rod RED hot, so I’ve been told. It will turn a ratchet Handle into a 1000 watt heater. AC house current, in series with a incandescent light bulb would also turn it red hot and not blow the breaker. A variac could be used to control the heat dissipated by the rod. An AC Heater element ( just for the load, not the heat) could be used in series with the rod. Just thinking, use the truss rod itself as the heat source. This would also be dangerous and unsafe in an uncontrolled environment. Don’t try it at home.

Re: Martin square tube truss rod removal

Posted: Mon Oct 16, 2017 8:54 pm
by tippie53
too much heat
glue will fail about 145F
charring the wood is the last thing you want to do.
Yes a car battery will make it hot but you cannot control it