Flag holder position

[TubaMorg]

Originally Posted by JesseK

This is possibly the worst-thought out rule in '08. I agree with he intent, but I am forced to wonder if the GDC considered what happens when a 40" ball falls onto the robot from 7'. Usually the top of the flag pole will be the highest point since the maximum starting size is only 60". I also wonder if they considered what happens when a flag pole at 75" drives full-speed forward under a trackball that hangs down to below the 75" mark in hybrid mode -- it's either a flung flag or a broken flagpole.

I forsee either alot of popped trackballs or alot of broken flagpoles.

I'm not sure it will be so bad. The diameter of the ball is actually a benefit to damage mitigation when it falls from the sky. Since the mass is about 7.5 lbs, the force of collision will be spread out over a larger area compared to, say, a bowling ball size. The flags will supposedly be held in place with a rubber plug, so if the flag contacts field elements, hopefully it will remain in place. If it doesn't then your laps won't get counted. Our team, for one, is taking design steps to ensure that the flag doesn't get flung out of it's holder. In years past, some teams designed with the hope that game play would get rid of the hindrance, but this year that strategy will be detrimental.

[Laaba 80]

Originally Posted by TubaMorg

I'm not sure it will be so bad. The flags will supposedly be held in place with a rubber plug

This is what I think will be the problem. In years past we always saw flags flying off the robots. This year if they are held in place and cant fly off, they may break. Hopefully they have lots of extras.
Joey

[Al Skierkiewicz]

Don't forget that the 75" top height is a rule, not a suggestion, and that all teams must provide PWM connection near the flag holder in which to plug the lap counter device. For teams that are using a kitbot or low height chassis, you will be required to have the flag holder attached such that it meets the current rule. Please plan for it now.

[TubaMorg]

Yes, as Al says, it is a rule so build accordingly. Keep in mind that the flag poles are very flexible. I would be impressed if they broke without being mechanically caught in something. They will certainly survive impacts with the ball. The weak link will be how teams implement the flag holder. Protect the lap counter and associated wiring, allow it to always be clear from above, and don't let flag impacts dislodge the flag.