Hi, I am working on a Choo-Choo mechanism too and was wondering how you get yours to be more single shot and have a set down point if you catch my drift.
Use a color/distance sensor and use the “detect object” function, I would recommend 2nd gen versions since they’re more consistent Basically when detected object, stop catapult motors
It’s a bit late, since we are using the hook on a chain mechanism (it flings the rings onto the goals, very good), but yeah we tried that and it worked better. The hook mech works the best though.
It is currently 3:1 speed, optimized for open-field crossings and reaching the balls quicker. The downside is it turns slower, and needs to accelerate to full speed. Although, it only takes a few milliseconds to do so.
Wait so are u day ur just going shoot the balls from the target not like around the board because if ur drivetrain is too fast u would take forever to line up were to shoot for the bottom
I mean like if the meta is to go up to the wall and shoot from there, you might as well move as fast as possible to collect, aim (go up to wall), and shoot. The robot has a rubber band tensioner as well, I forgot to mention that I think
Can u explain how it works please because I’m having hard time with rubber band tension and like the pulley system swinging back and I also don’t understand why the pneumatics piston is pulling back to a different gear in the back so can u please explain🙏🙏
The ratchet keeps it from releasing whenever it wants to, and if you’ve messed around with the slapshot field elements (purple dispenser) or made any ratchet, you’ll find out in order to spin the ratchet in the other direction, you have to release the arm that catches on the gear.
Creator Academy uses a gravity gear combined with the ratchet, and is a neat part designed by the Vex IQ game masters, but that doesn’t allow you to use the two motors when the catapult is pulled back, rendering them useless for a good three seconds when running around the field for balls
I changed the design because I found out the winch doesn’t allow the catapult to suddenly accelerate the way I want it to, so I can’t launch balls from across the field.
we found that the motor to the catapult does not get worn out so the ratchet mechanism isnt needed at least for our robot. if you wanted a really fast ratio for your cata then this would be useful (fof perspective our cata goes down about as fast as yours).
some teams like 2145z have the ling part as a seperate stage and it spins in reverse and the rings go along the top on the conveyor and get pulled onto the goal with the hooks on the conveyor
