Re: Robot Arm at Nationals
Posted: May 13th, 2016, 12:41 pm
My remarks are now posted to the National Tournament website.
Jeff Anderson
Livonia, MI
Jeff Anderson
Livonia, MI
EVENT INFO: We will NOT be using the printouts provided on the national site. There will be three competition areas in use for the national tournament. The competition area is laid out on the same two piece boards used for Robocross at previous national tournaments. The boards are individually 2 by 4 ft, assembled 4 by 4 ft. There is a nominal 1X2 fence around the perimeter, the competition area is roughly centered on the board. The qtr round moldings used by robocross have been removed. The competition area is marked out so that the North zone is defined entirely by the inner edge of the tape around its perimeter. The dice are NOT located as shown in the reference illustrations, but as defined by the words in the rules. This means they are adjacent to the outer edge of the robot square, not the outer edge of the tape defining that square. Items will be located by hand on reference marks drawn on the playing field, by the event supervisors. I have not measured that precision, but would expect it to be less than +/- 5 mm or so of the location specified by the rules. Note, the details are subject to circumstances (I might crash my car on the way to the tournament and smash the boards…) up to the start of the competition, but we will make every effort to ensure that all three playing fields are set up consistently with each other on the day of the tournament.
I would think it would depend on the event supervisor. Some have allowed me to while other have not, but regardless, I don't think it would help much so I don't see why not if you requested to.Bazinga+ wrote:I would ask this as an official question but not sure if its worthy of the process. During the 'preperation time' to 'set up and test the device in the competition area', may the robot arm interact with the scorable items? Since the rules reference the competition area and say competitors may 'test their device' I would think we could.
I'm sure those running the event will make it as close to +/- 0 mm as possible and the +/- 5 mm is to make teams aware that it is possible the items and taping might not be perfect.chess884 wrote:Is it at all possible for the "+/- 5 mm" to be reduced at all (closer to the description in the rules)? It seems to me that that implies a total of a 1 cm increase in range of where the items could be placed. I realize it can be difficult to set up the field, especially ping pong balls, but +/- 5 mm is a pretty substantial range. I don't have an autonomous arm but it seems unfair to unintentionally hurt those competing that way and might take away from the large amounts of practice and engineering that go into the arms.
chess884 wrote:Is it at all possible for the "+/- 5 mm" to be reduced at all (closer to the description in the rules)? It seems to me that that implies a total of a 1 cm increase in range of where the items could be placed. I realize it can be difficult to set up the field, especially ping pong balls, but +/- 5 mm is a pretty substantial range. I don't have an autonomous arm but it seems unfair to unintentionally hurt those competing that way and might take away from the large amounts of practice and engineering that go into the arms.
Part of my device is autonomous and a 5mm difference still enables it to function properly. While a smaller error would be nice, there and very many solutions which could overcome the 5mm error in piece placement.chess884 wrote:Is it at all possible for the "+/- 5 mm" to be reduced at all (closer to the description in the rules)? It seems to me that that implies a total of a 1 cm increase in range of where the items could be placed. I realize it can be difficult to set up the field, especially ping pong balls, but +/- 5 mm is a pretty substantial range. I don't have an autonomous arm but it seems unfair to unintentionally hurt those competing that way and might take away from the large amounts of practice and engineering that go into the arms.