Summary

Broke the twist lock on my out front mount yesterday. I found elmanu's part, and it mated nicely to the GPS. I added thicker screw bosses to the back and extended the outer ring as well to match the original part.

My printer doesn't make small holes very accuratly, so I drilled them out with a #36 drill (2.7mm) and forced in the original screws. Threaded inserts would be best, and I may do that in the future if it doesn't hold up like it is now.