The Ballistikraft originally used a smaller quick-release trigger from an earlier machine, but I decided to make a larger version to handle bigger loads.
The main body is made from 3/16″steel and cut with a hacksaw. That took a while.
I wanted to make it look fancy so I added some mesh to the outside. In retrospect I probably should have used bolts to hold it together rather than welded pins, but I don’t anticipate any reason to take it apart again.
The safety has two pins: One keeps the jaws closed and one keeps the trigger handle shut.
This trigger is based on plans from this website, which originally came from the old Catapult Message board: