Question about the VexU BCUZ Tipping Point Bots

[Entropy]

I was watching some robot explanations on youtube, and was watching the one for VexU team BCUZ.

BCUZ Tipping Point Robot Highlight

At around 8:26 in the video, you can see their stealer mech in action. It looks really cool, although not too viable for high stakes due to length limits. However, I am still curious on how preciseley they can get the hook thing to jolt inward only once the arm is parallell to the ground, yet not during the downward fall, and they dont really explain that part. Does anyone here have a potential explanation I could read?

[Gigahertz.t]

I don’t know exactly how they did it, but here is my theory:

Looking at the structure here…

We can see the screw alignments are slightly offset (image 1). In the image, the top screw is on the front of the rail, preventing it from going back. When the hook impacts the mogo, it pushes the screw rails into alignment (image 2), allowing it to be pulled back (3)

[Entropy]

Even if that isn’t correct, that is an amazing idea!