My middle schooler is building a catapult that’s supposed to hurl a ping-pong ball 5 meters:
The problem is that the pressure on the latch is so high that the kid just cannot trigger it:
The door latch used as a trigger is being under so much pressure that it just wouldn’t slide out. I doubt that adding lubricant would help enough.
Thus the question: what latch design could you suggest so that it would operate smoothly under lateral pressure?