This year’s game celebrated the 20th Season of FRC and commemorated Jack Kamen, who designed the original FIRST logo.

Logomotion is played by two competing alliances of three robots each. They compete to hang as many intertubes (triangles, circles, and squares) on their scoring pegs as they can during a 2 minute and 15 second match. The higher the teams hang their game pieces on their scoring grid, the more points their alliance receives.

Point system for “Ubertubes” and logos on pegs.

The match begins with one 15-second autonomous period in which robots operate independently of driver control and attempt to hang yellow “Ubertubes” to score extra points. Then, drivers take control and try to maximize their alliance score by hanging as many inntertubes as possible. Any game piece hung on the same peg as an Ubertube receives double points. If teams assemble the game pieces on their alliance wall to form the FIRST logo (triangle, circle, square, in a horizontal row), the points for the entire row are doubled. The match ends with robots deploying minibots, smaller robots ¬†independent of the host robot, onto vertical poles. The minibots race to the top of the pole to trigger a sensor and earn additional points.

Our Robot: PEEF

For the 2011 Logomotion competition, our team decided to focus on the offensive and scoring aspect of the game. Due to the game regulations, a robot’s height may not exceed five feet in height. However, the top pegs extend well over this height limit, so we designed our robot with an extending lift. This lift reaches well over ten feet and is able to score on any of the nine pegs. Attached to the top of the lift is a clamp that is used to hold the tubes in place.

The lift was a key part of the design of PEEF. Since we focused on scoring, our robot had to be able to place tubes on pegs on varying heights. We decided to do this using a lift. The lift is controlled using pulleys and tread to move three slides up and down. This design allows us to keep the lift at any height and allows us to score on every peg.

The clamp was designed to hold tubes of three different shapes: circle, triangle, and square. We achieved this using a design with two metal rods above the tubes that hold it into place. A moving clamp that allows us to hold and to drop the tube.

In this game, agility, move-ability and speed are very important factors. Mecanum wheels consist of a series of rollers attached to the outer circumference of the wheel. Instead of the conventional wheel that moves only forward and back, this variation of omniwheel allows our robot to move in any direction.

Our Minibot: CANDI

Candi is the affectionate name we have given our ‘minibot’. At the end of a round, robots have the option to deploy a mini-bot, that must otherwise be on their robot throughout the entire game. The mini-bot must latch onto one of the four poles located in the playing field, and the race to the top begins. Bonuses are given to the robots in 1st- 4th. Candi didn’t make it out onto the competition field because we didn’t have enough testing time, but she was lovingly worked on towards the end of build season. ¬†