HT-214D Crimping Plug

I needed a replacement internal keyboard cable for my Apple II, which uses a 16-pin IDC cable with these ends (https://www.digikey.com/en/products/detail/adam-tech/FDP-316-T/9832749). I bought the HT-214D crimper to put the connectors on the cable, however the HT-214D plug that comes with it has a couple of flaws:

- There's a retaining clip on the side to hold the plug in the seat while you crimp, but because it only extends about half of the height of the plug, it only works in one orientation
- The plug is slightly narrower on one side, which makes it sit loosely in the seat.
- The connectors that I bought are slightly raised (.25mm) between the pins. That meant that when crimping, the inside wasn't supported and the connectors had a tendency to crack.

I've provided two STLs, one with the original design and one with my "improved" design that fixes the seat fit, the retaining clip, and raises the middle section on the .3" side of the plug to better accommodate the connectors