I have a conundrum for the community. Bandman444(Bryce), Tominator79(Tom), and all came together to help Bryce design and assemble the fins for his High School's project.
The project is a 3" MD rocket aiming towards mach 3 to measure aerodynamic heating curves and compare against acceleration.
We attached the fins without much issue, and we T-T'd one side fairly well, but there was a hiccup. Before I left, I attached the coupler to the body, but I neglected to make a major note of it, and we could not put the rocket in the curing oven due to time constraints with the vacuum bag supplier. When they applied the vacuum, the coupler slid into the body tube and cured there.
As I understand it, the epoxy that was pushed into the tube is "gummy", which leads me to believe that the bond is not impossibly strong and will not damage the body to break, though I do not want to test my luck with this.
Now, we have two different options on the table that may or may not work.
(My option): We use a saw blade and carefully cut out a small section of the coupler (length-wise) so we can delaminate the two pieces of tubing.
(Bryce's Option): We carefully cut the 4.5"-5" section of body tube, and remove the tube so the coupler is clear of the tube, and can be used.
(My Option):We could saw into the body tube, which would lower strength. We would also need to buy a new coupler tube, probably out of FG because CF is incredibly expensive and the part will need to be rush ordered.
(Bryce's Option):We could confidently saw into the coupler which would lower the coupler's strength and cause a failure.
(My Option): Allows for use of the longest motors, but said motors will not be used for this test. Also, new coupler will need to be ordered.
(Bryce's Option): Will not allow for longest motors, but said motors will not be used regardless. No new parts need to be ordered. The cut will likely not be perfect, so finishing will need to be done to square the edge.
These options will only be considered once less invasive options are tried.
Edit: Please post the reasoning behind your answer, it will give us more insight on how to proceed.