chrisginottawa: Machining top die with press fit concave punch and M8 threaded stud.
chrisginottawa: Bottom die with rivet post/cap inserted.
chrisginottawa: Preparing to apply force!
chrisginottawa: It works! Hammering was tricky because post wobbled.
chrisginottawa: Why stop at rivets, here are 2 grommet dies. Bases share a 1/8th” pin.