I'd get a 1/8 reverse drill bit. Drill hogs make a great product. Heat it with a soldering iron and then after getting a good center punch on the remaining stud start the reverse drill. Epoxy will be gooey and should let it go pretty easy. You could probably get away pretty easily with a butane soldering iron.
https://www.amazon.com/dp/B071ZJLJ3Q/ref=cm_sw_r_cp_apa_glt_fabc_367PHHW6XASTMHSCVXY6 https://www.amazon.com/dp/B07YQWDQRN/ref=cm_sw_r_cp_apa_glt_fabc_99Q69HSZBK6QXPV0RQWZ Josh Muckley S/V Sea Hawk 1989 C&C 37+ Solomons, MD On Tue, Jul 20, 2021, 14:41 Bill Coleman via CnC-List <cnc-list@cnc-list.com> wrote: > I have a Broken ¼ - 20 broken carriage bolt with around 2 threads showing > out my transom. > > 1 ½” is embedded in epoxy. An easy-out seems unlikely. I did four, three > of them unscrewed successfully, but apparently I didn’t coat this one > thoroughly enough with the Vaseline. > > > > I am thinking that if I can heat the bolt up to around 300 degrees or so, > it will break the bond with the epoxy. A soldering iron seems **maybe** > possible, but that is only one side. I was wondering if I could heat it up, > like plumbers do with welders to melt frozen water lines, it might be an > option. > > But I don’t understand enough about electrical resistance to know how to > go about it. Using a battery for juice seems risky, having seen what > happens when I have shorted them out with a wrench – > > I do have a 30 amp adjustable Powerwerks power supply, which seems a > little safer. > > What I don’t understand, is if I can put a positive on one end of the > bolt, and negative on the other, will it heat the bolt, or will it just > melt the insulation off the wires? Or ruin the power supply? Or is it a > factor of the gauge of the wires? > > > > Bill Coleman > > Entrada, Erie, PA > > > > > Thanks to all of the subscribers that contributed to the list to help with > the costs involved. If you want to show your support to the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray Thanks > - Stu
Thanks to all of the subscribers that contributed to the list to help with the costs involved. If you want to show your support to the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
