Blue is plastic, green is stamped metal together they make up the ratchet. Yellow striker is moving left to right on screen. Slowly currently but want to bump up the initial velocity once I get it to solve.
Blue component constrained on flat plane in and out of page and at pivot hole radially. Green stamping is also constrained on flat plane in and out of page and in pivot radially. Simulation fails when striker is pinched in throat of ratchet or before. Contacts are bonded internal to ratchet and non penetration between striker and ratchet. With stamped part turned off, system solves. Turn on stamping and failure.