Quote:
Originally Posted by JamesCH95
Really creative design, I like it. If made it probably would have been one of the best goalies out there.
However, it would have suffered from the same Achilles Heel as every other goalie robot out there: counter-defense. All it would take is one robot parking sideways in the goalie zone to block the goalie from moving through the goalie zone quickly. the goalie would either have to push the counter-d robot sideways as fast as the shooting robot could re-position and shoot; or retract its blocking extension, drive around the counter-d robot, get back into the goalie zone, and re-deploy its blocking extension before the shooting robot could re-position and shoot.
This is why we did not pursue a goalie design. Defense is important, but a goalie robot is simply too easy to effectively counter.
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We did a lot of
analysis, and we found that mathematically, we still benefit our alliance as long as it takes more than two seconds per cycle for this counter-defense robot to get into place (because we slow them down). Actually, we found that if we block a single ball in autonomous, we are pretty much guaranteed a win. Of course, our mentors correctly pointed out that while it is mathematically advantageous, we still have to get picked, and it doesn't look good if we get blocked.
Quote:
Originally Posted by gpetilli
Unfortunately, it is against the rules.
G12
An ALLIANCE may not POSSESS their opponent’s BALLS. The following criteria define POSSESSION:
1. “carrying” (moving while supporting BALLS in or on the ROBOT),
2. “herding” (repeated pushing or bumping),
3. “launching” (impelling BALLS to a desired location or direction via a MECHANISM in motion relative to the ROBOT),
4. “trapping” (overt isolation or holding one or more BALLS against a FIELD element or ROBOT in an attempt to shield them).
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Well noted. We were more than a little irked with this significant rule change after two weeks. Our prototype was fast enough to lock position before impact, but the struggle was indicating clearly to the referee that the post was stationary.