Since I have gotten a little more confident in my wax pattern making, I have decided to revisit my coupler design. A while back, I decided to see if I could model a working draft gear. Here is my first attempt:
I am also in the process of designing a trip pin mechanism that can be triggered by an operating rod (cut bar).
Here’s a 3d rendering:
And here’s the pattern I’ll use to make a mold from:
These will get pinned together with .032" rivets.