Functional Equivalent of Slipgear (VEX IQ)

[weilin]

Here is the search link: Search results for 'choo choo' - VEX Forum

And some examples:

How Does a Choo-Choo Mechanism release?

The motors actually keep rotating in one direction. It’s the knob and folding action that passively release the catapult. Consider this prototype here: http://image.prntscr.com/image/2a1ed969c7a2410f9ded55d00ff5b468.png Link to video There is a two-part linkage linking the gear and the catapult arm and a “knob” that “folds” the linkage. For this to work, there must be an elastic force acting on the other side of the arm (in the form of rubber bands). Normally, because of the elastic force, t…

Problems with choo choo/catapult mechanism

So I’ve recently tried making a choo choo/catapult mechanism and for some reason once the stopper/peg hits the arm it just stops instead of pushing it down. Here are some images [20211123_213840]