I'm just about ready to fasten the centreline components of my Oughtred Tammie Norrie. I have some 1/4 inch copper rod, which I planned to rivet at both ends over copper rooves. The lower end would be riveted into an inverted roove placed in a countersink, the upper end over a roove normal way up.
Doing a dry run of this process, I found it was not as simple as it sounds. I battered the end into the inverted rivet ok, but it splayed into ugly crows feet. I then thought I should perhaps anneal the copper first. Can anyone advise me from experience?