[Raleigh]

I also use a tubing cutter for e-cap cans. It gives me a nice smooth, even, cut, which I'm not able to do with either hack saw or Dremel tool. The edges of the cut are dimpled in a little, but I fix that by rolling the dimpled edges on my workbench with a short piece of scrap copper pipe. It smooths out the edges very nicely so they rejoin with only a little visible seam.

The JB Weld holds the edges together at least as well as necessary. One time I had to take a re-stuffed cap apart and re-re-stuff it (long story about a bad decision), and the JB Weld held so well that I had to use a hack saw and make an new cut to open it again. (This one was too thick for my tubing cutter.) A good argument for using metalized tape, I guess.

I nearly always clamp the restuffed capacitor very lightly in a vice until the JB Weld dries.