"Autonomous code: Drive straight, turn left, divide by zero"
Stephen Gienow

2008 Chesapeake Regional Competition

History


Origins


Team REX began in the fall of 2005 with 20 members.  We decided right from the beginning that we wanted to be a club of excellence.  We desired to be known and recognized as an exceptional team.  Our team started as the Robo-lions.  Toward the end of the year we decided that a short simple name was the way to go so we re-imaged ourselves as REX.

We immediately began fund raising, training and partnership development.  Our first two sponsors were NASA and AAI.  NASA adopted us as a house team and we developed a wonderful relationship right from the beginning, starting with Mike Wade as our liaison and continuing to this day with Rob Thate.  The status of house team guaranteed that we would be able to compete.  We then approached numerous engineering companies and with the assistance of Mark Angelos, we started a relationship with AAI (now AAI-Textron) that has remained strong to this day.  We have had many contributors, our relationship with Raytheon of Towson began in our second year and has flourished into a very strong partnership.  Our most recent joint venture was a session hosted at Dulaney where 6 engineers came to Dulaney to discuss engineering careers.

We are very proud of the relationships we have developed with our business partners and our robotics partners in the Baltimore Area Alliance (BAA).  After the BAA started in the summer of 2006 REX has worked closely with the other teams in the BAA to host a summer FRC off-season event, conduct fundraising events, and to help host the BAA training session each fall.  We are proud to say that robotics has flourished in the region and that we were a big part of that development.  We were even able to secure a 5,000 dollar donation for the BAA from the BD Corporation.

We decided early on that we not only wanted to build robots we wanted to create traditions.  In the fall of 2005 we hosted a fund raising dinner hosted by Carrabba’s.  This tradition has continued and flourished.  This year we hosted a “Spaghetti Dinner” cooked by team members and parents of our club.  We displayed different robots and created an atmosphere where parents and students intermingled with visitors and dignitiairies.

Every year we have parent “pizza” nights in the beginning of the year where mentors, students and parents meet each other.  We have a barbeque every year to honor the contributions of our departing seniors and mentors.  The continuation of these traditions strengthen the club and insure it’s future viability.

To expose our club to the public we demonstrate our robot at every venue possible.  We have shown our robot in bookstores, restaurants, elementary schools, movie theaters, local businesses, corporate and government sponsors.  This year we displayed our FIRST Robotics robot and our VEX robot to a STEM meeting at the University of Maryland Baltimore County STEM meeting that was attended by State and local education officials.  We also displayed at the NASA Launchfest, hosted by the NASA Goddard Space Flight Center.

Everything we have done is primarily aimed at increasing our “REXcellence.”  Without visibility and community involvement we couldn’t have achieved all of the fantastic things we have done.  In our first year we were awarded the “Rookie All-Star” award securing us a spot in the championship event.  We were recognized for our excellence in our second year with the “Chairman’s Award” at the Chesapeake Regional primarily for our involvement in the BAA.

Rookie Competition


On January 7, 2006 FIRST announced Aim High. Aim High is a mix of soccer and basketball where robots have to pick up balls and either shoot or roll them into goals. We decided to challenge ourselves and create a device to shoot into the three point goal. Once preliminary tests showed pneumatics and springs were not feasible, it became clear that the best method would be a device similar to a baseball pitching machine. To gather balls off of the ground, we created a conveyor belt system using rollers made from pool noodles and a conveyor belt. The system was later duplicated in order to raise the balls from a holding tank to a ramp then to the shooter. AAI engineers came several days a week to offer their knowledge, skills, and machinery to help build the devices. Even though we lacked experience as a whole, we were able to plan, build, and integrate all of the devices on to the robot.  In addition to the help we received from AAI, we received a lot of support from the parents in our club. Especially in the last weeks of the build season, the team came together and worked effectively with mentors to complete the project. The entire robot was completed slightly behind schedule but with just enough time to test.

After completing the robot, the competitions were upon us before we knew it. The Pittsburgh regional was a true trial by fire. With only 23 teams participating, we had the opportunity to participate in many matches. However, this situation gave us little time to improve on our robot between matches, especially in the autonomous mode. Despite our tribulations, we caught the eye of the other teams and the judges: we were the sixth team selected as an alliance partner and won Rookie All Star and Best Website. We then took our robot to the Chesapeake regional competition, where we found many more teams and were able to apply our experience from Pittsburgh. Again, we left this competition proud of our additional accomplishments.

With our Rookie All Star award, we made it to the Championship in Atlanta. The sheer size of the Championship astounded us, with over three hundred teams competing and three events going on simultaneously. Our robot performed well, but we were not ranked high in the ranks at the end of the day. We come home with a new outlook on FIRST, and new ambitions.

Outreach


Over the summer, we hosted a robotics camp for middle school student in tandem with Johns Hopkins University. To spread the image of Dulaney Robotics, we have agreed to participate in off-season showcases. In the spring of 2006, we demonstrated the robot at area elementary schools and the Rockwell Automations Show at the Baltimore Convention Center.

We have taken the initiative to help create an interdependent community in the greater Baltimore area: the FIRST Baltimore Area Alliance. Nine teams from both Baltimore County and City participate. Our mission is to share information, fundraising efforts, and eventually, team training. BAA obtained status as a 501(3)c organization through generous sponsorship by the Henry Foundation. We kicked off the 2007 build season with a major BAA fundraising dinner sponsored by Outback Steakhouse. Many team members, mentors, sponsors, and educators attended the event and teams raised an average of $1000 each. In 2008 we again hosted Outback Night with nine teams attending with total income for the night around $10000.

We have expanded our community outreach programs to include several all-day workshops using NXT and VEX robotics systems. Eight middle and elementary schools within our community received flyers about the workshops, and groups of 24 students enthusiastically participated in building robots to compete in mini-competitions designed by Rex members. Through our various fundraisers we have demonstrated our robot at Sam's Club, and showed videos and distributed FIRST literature at restaurants like Andy Nelson’s BBQ and Yamato Sushi, and businesses like Barnes & Noble and Greetings & Readings.

We again collaborated with Carrabba's  Italian Grill to host Carrabba’s night at our school. Our goal with the dinner was not only to help fund our club, but to get the public more interested in FIRST. Several events took place during dinner including the US FIRST Rack ‘N’ Roll competition video, robot displays, demonstrations, Vex prototypes, and we honored our AAI mentors with lavish awards.

Rack ‘N’ Roll


The 2007 Rack ‘N’ Roll game presented quite a challenge for our team. As a student-led team, organizing and managing our sizeable membership has been a learning experience. We decided to attempt to score points both through the rack and lifting alliance partners. We split our team into subgroups to work on different components including drive train, ramp, arm, electrical, and programming. We chose to have both offensive and defensive capabilities powered by a six-wheel drive train with two-speed gearboxes. We used traction wheels but elevated the two center wheels allowing us to turn on a dime. We initially had two competing design ideas for the arm and device. Separate teams worked on their respective designs, and in the end we chose the successful design. The ramps utilized pneumatics to elevate alliance partners 13 inches off the ground.

We put our Rack ‘N’ Roll robot to it’s first major test at the Trenton Regional Competition. From March 1st to 3rd, we competed against some of the finest teams in the nation. We learned a lot about the competition and what our robot was capable of, and ultimately made major design changes while at the competition. We had to scrap the rotary arm design, and remove the ramps due to difficulties. We did not place well in the final competition, but walked home with the Kleiner Perkins Caufield and Byer’s Entrepreneurship Award after presenting the first iteration of the Rex Report to judges.

Just two weeks later, we walked into the Chesapeake Regional. From day one our enthusiasm was infectious, and the robot could not have performed better. We presented a revised Rex Report to judges, and they kept coming back to our pit to find out more. We made it to the finals, but were eliminated. However, we won the Chairman’s Award, and we became the first team in Maryland to do so. With our Chairman’s Award as our ticket we competed at the Atlanta Championship, but didn’t place high in the rankings again.

Summer Involvement


Over the summer we hosted another robotics summer camp program for 45 kids, based around the Boebot kits. We designed a several competitions for campers to compete in and we were featured on the BCPS website. In early August as part of the Baltimore Area Alliance we helped setup and run the Battle O’ Baltimore – Baltimore’s first off season competition.

With the start of the 2007-2008 school year, we wanted to focus on technical excellence. We called our mentors in early to form a cohesive training schedule that would cover many aspects of robot build, including leadership, machining, safety, pneumatics, sensors and more. In addition we attended the BAA Training Day, and our students taught several of the 12 classes.

October 12th
October 18th
October 26th
November 9th
November 16th
November 30th
December 7th
Machining Introduction—Terry Loper of AAI
Safety Training and tests
Pneumatics—Bill Castaneda of Automation Technology Inc.
Sensors—Steve Ruth of IFM Efector Inc.
Interaction with Mentors
Programmatics— Mark Angelos of AAI
Systems—Mark Angelos of AAI


We put our Rack 'N' Roll robot through its final paces at the Duel on the Delaware where we introduced new team members to the competition atmosphere.

 

Kicking it into Overdrive


The robot utilizes double wide 80/20 members that are 4.5' tall and allow the bottom of the claw to tower at 7 feet maximum. The 80/20 and claw is driven via chain and wire rope, respectively. The claw uses fiberglass joined by aluminum blocks. This makes the claw flexible preventing damage during competition, yet the fiberglass is stiff enough to maintain rigidity when picking up the ball. The Claw features a 700mm infrared sensor used to pick up the ball automatically, eliminating human error.


The drive system is simple, yet effective. It utilizes two 8" IFI traction wheels mated to Banebot 12:1 planetary gearboxes with CIM motors in the front and two freewheeling Andy Mark 8" omni-wheels in the rear. The electronics portion of the robot is a two-tiered design that allows for easy access to key components.

For our first competition in Chesapeake, the competition ran like clockwork. Unfortunately, our robot didn't. During the course of the competition, we ran into a wide range of problems. Near the end of the regional, we largely ironed out the issues with the robot. We did not place well however, coming in 45th of the 60 teams competing, but we walked away proud with the Johnson and Johnson Gracious Professionalism Award, and Team 75's Safety Award.

From March 27th to the 29th, we competed at the Philadelphia Regional. This time around our robot performed much better, and we managed to place 22nd out of the 44 teams competing. We were chosen in the finals by alliance captain Team 357 - Royal Assault along with Team 709 - Femme Tech Fatale. Although we were eliminated in the quarter finals, the matches were quite fun and intense. We walked home with three safety awards from other teams, the prize for Team 1885's First FIRST Trivia Challenge, and Best Website. Overall, Philadelphia was a great event, and we would like to thank everyone involved in setting it up, Drexel University, and of course Team 357 for choosing us, and Team 709 for being a great alliance partner!







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