GCER: Botball International; Part 1

Posted by Jeffrey Yu on July 2nd, 2009

Today the Botball-ing officially began. Hundreds of lego and VEX creations began zooming around the regalith fields when the seeding rounds started. And don’t get me started on how many LEGO friction pegs I found scattered across the floor.

After arriving to the competition a few days after the rest of the team did, I have to say, there is one main thing that was blatantly apparent to me: The food was delicious. That is, after navigating the thousands of meters of cavernous passages and hallways, of course.

No joke; the International Conference Center in Washington DC is big. It’s huge. It’s immense. When we first saw it on the brochure, it didn’t seem that large. However, when we arrived, we realized that the specks of black next to the structure on the brochure were actually cars. The six story monstrosity was loaded with hallways and passages galore; in addition to this, it had a recreation room with pool tables, a plasma TV, board games, and comfy chairs. But that’s not all! It had the huge, aforementioned cafeteria loaded with rows among rows of gourmet cuisine and desserts. It had a fitness room where there were several intimidating workout machines…and seveal intimidating, beefy dudes working out on them. Finally, there was the ballroom: this is where the Botball-ing was going down.

The suites themselves were sweet. If the flatscreen at the front of the room wasn’t enough, there was another one at the back. The bathrooms were nice and roomy, the sheets smelled of freshness, and the beds felt like clouds (without the wet part…). The best part was, not surprisingly, the twenty megabits per second internet!

In the end, team 115 did pretty well in seeds, while 116 could have done a little better. Either way, we will be starting the double elimination rounds tomorrow, and I hope we do better on those!

Stay tuned for the next part!

Live long and Prosper! c\\//

-Jeffrey Yu

Lunch Demo!

Posted by Jeffrey Yu on May 27th, 2009

Disclaimer: Some of the events depicted in this sequence were modified to fit your screen. Viewer discretion is advised.

Today the Evergreen Valley High School quad experienced something that it had never experienced before. It was touched by the angelic wheels of the Prototype…or something like that. Essentially, the team had its first ‘official’ lunch demonstration!

After sneaking out of first period with Jeff and Jackie (and David Yang, for some reason…) to talk to Leadership a few days earlier, we were ready to get all of our assets out on the cold, hard asphalt. Yesterday, we wheeled in all of our assets into an unassuming computer science class while some kid kept on bothering Jeffrey about his bike. After we got everything ready, we went to sleep and got ready for the day ahead of us.

When lunch came around on that Wednesday, the weather was fine, and the team was assembled. The bell rang, and students came running out of thier classes trying to snag the front of the lunch line. The demonstration area was taped and chaired off, and we were ready to begin.

We flipped on the Prototype in the sunny summer weather. Eric wiped the beady drops of sweat off of his brow. The quad was loaded with thousands of beady little eyes, ready to see and critique anything and everything that was about to go down. Eric grabbed the joysticks, Jackie and Jeff threw out some of our orbit balls, Hubert kneeled down slowly, and Jeffrey wheeled away the cart.

Eric yanked the sticks forward and the robot was off! The machine gave off a loud whirring noise as it came to life. The leadership representative grabbed a mic and shouted “Whooo!” and we were off. Eric drove around the quad, picking up balls and shooting them off into our trailer. The crowd cheered, and a line of people who wanted to drive the beast started. One after another, people wrapped thier clammy fingers around the joysticks and ran the robot around in circles, lines, and squares (oh my!). There was even a dance off between the robot and one of the members of the Four Elements club (The robot won, of course). After thirty-five minutes of non-stop action-packed demonstrating, we packed up our things and left, heroes.

Luckily, none of our balls were stolen. There were a few characters who tried, but Jeffrey and Brian beat them down with their iron knuckles. The drivers were from all walks of life too. There were the nerdy, reserved type who tentatively inched the robot forward milimeter by milimeter and the pompous, ‘cool’ type that went into dizzying spins right away! All in all, the event was a success, and hopefully we got some well-deserved media coverage in the process!

Live long and prosper! c\\//

-Jeffrey Yu

The Last Build Meeting

Posted by Eric on February 17th, 2009

Today is ship day…And so ends the build session for our FIRST rookie year. We managed to build our whole robot in 13 meetings, and only had one week-day meeting.

Here are some of the thoughts of our team members:

“The FIRST experience. Thrilled by science and technology. Inspirited by the partnership of team members. Energized by the feat of engineering. Motivated by the wisdom of mentors. I am inspired.”
- Jeff Chan


“Over the 6-week build period, our team not only managed to build an extraordinary robot, but also learn new techniques and create memories along the way. Starting out as rookies, our team was far from perfection, but each mistake was well worth it. We took the mistakes to our advantage and learned from them, bringing us one step closer to creating a better robot. Though we may have been exhausted, angry, and bitter at times, we managed to pull through with stronger bond than ever before. “
- Katherine Huynh


“It’s been so long since I’ve had a goal I’ve almost forgotten how good it feels. Spending long hours with close friends, working towards, and achieving a shared vision. It’s been a great learning experience, and I can’t wait till we do it again next year.”
- Brian David


“Coming into FIRST as a Rookie Team, we did not know what to expect. Of course we knew the next 6 weeks were going to be filled with hard work, team meetings with open end times, dedication, and a lot of perserverance, but that did not stop Team 2854 from making a fully functional robot. At the end of the 6 weeks, when shipment day arrived, it was saddening to ship off the robot, knowing that we would see our hardwork in a month or so. A strong bond developed between the members after all those long hours spent working on programming or building what had seemed to be an impossible task. Although we all attended the same school, not all the members had known each other previous to the Kickoff. As the season continued, the members became more like a team pulled together by one reason: their love for robots.”
- Jacqueline Tran


“Working on the robot was full of hard work, determination, and cooperation by everyone which is what, helped us to finish the robot. This experience has been changing and has showed me that with teamwork anything can get done. I have learned on a big project like this there will always mistakes, but that is what helps us learn and grow as a team.”
-Jimmy Tran


“I learned that sometimes the best laid plans can fail, and the important thing to remember is to always be flexible and work with what you have. A prototype is just a way to test out an idea, and sometimes, ideas dont work out. It’s important to learn from your earlier mistakes, and use the knowledge gained to perfect your design. In the end, if the final version of the robot surpasses expectations, the experience is made, all the better.”
- Hubert Wang


“It was a great time working with new friends, meeting new people, and working with the power tools (Tim Taylor grunt), electronics, & programming.  I’ve soaked up and learned so many cool things that it’s simply amazing what I missed out on before we joined FIRST and tackled this project. Maybe not the most respectable but one of the things I learned during this 6-week grueling process was “The 5 stages of Sleep Deprevation (in order)”:
1. Confusion
2. Organized Chaos
3. Pissiness
4. Drunkeness (including a bit of singing)
5. Half brain function
All in all, I’ve met some amazing people. I would be shocked if in 10 years these kids weren’t pioneering in their own fields. This club has brought back a sense of friendship and the kind of determination and cooperation you just don’t see these days. Looking back, I’m glad I made this journey and I look forward to doing it all over again next year.”

- Ryan Gordon


“When some of our team members actually brought up the prospect of making a FIRST team, and competing, I was originally against the idea. We had only done BotBall in the past, and I thought that since we have no mentors, or previous experience, the task would be near impossible, however, as time progressed, I began to warm up to the idea and enjoy it more and more. Our team was originally not accustomed to staying up and working for more than 15 hours straight, not being able to tell which day it was, and even making a guessing game out of what time it happened to be. Once we were able to settle in, our productivity shot through the roof. As a rookie team, we were able to build our entire superstructure over the span of just 4 days. Aside from being a blast, this experience has been incredibly educational. Unfortunately, during the course of learning what exactly I had to do, I made a lot of mistakes on the robot, and ended up having to rewire the entire thing 3 or 4 times. And our last workday was one of my most intense days of my life, working on the robot for 22 straight, solid hours certainly took a toll, but we were finally greeted with the satisfaction of finally being able to drive our robot around the field, pick up/shoot the rocks as well as the veteran teams, and being complimented by them. I was filled with a great sense of accomplishment as our team rejoiced. It was a rather somber moment when the FedEx truck came to take our creation away later that morning, leaving what seemed like a gaping hole in the garage where it used to reside. At first, I thought that it was all over, but I soon realize, that it is just the beginning. I know we may not be the best team there, and we might not make it to the very end, but I still take pride in the work I’ve done, and i know that every minute of this project was time well spent……onto the competition!”

- Eric Kauzlarich

Summary of 2/16/09 Meeting

Posted by Eric on February 17th, 2009

Today we spent all of Monday and most of Tuesday morning (6am) finishing up our robot.

  • New CIM motors (2)
  • New metal plating
  • New chain
  • Geared up 2:1
  • Trimmed the pvc
  • Mounted plastic on the side, back, and front ramp
  • Had to take it all apart to take off little pieces of covering…for 2 hours
  • Got the hood up and working
  • Made an extra roller
  • Polycord is done
  • Bumpers are on
  • Camera was mounted…but then the 5V channel on the Power Dist./ Board failed
  • Electrical is secure; resoldered again
  • Battery mount secured

The robot is up and running.  We had successful trials of testing on the field starting around 3 AM (our first run ever)

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Still got a ways to go…

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Our robot is ready for our first test run.

Summary of 2/15/09 Meeting

Posted by Eric on February 15th, 2009

Today was a really productive work day, we got so much done in that 16 hour time span and made every minute of it……we didn’t even have time to take pictures! =O

Summary for Sunday 2/15:

  • Mounted the fisher price motor (replaced the broken one with a “new” one)
  • Re-soldered everything to ensure proper/good connection
  • Made the wire connectors for the new battery  (soldered it and used shrink tubing this time instead of electrical tape)
  • Cut the orange polycord to 85.5″ and melted them together
  • Fixed the spacing of the conveyor belting on the rollers
  • Greased both ToughBoxes
  • Mounted the angled panel of polycarbonate and braced the polycarbonate with metal bars
  • Made the hood
  • Attached the plastic to the metal framing
  • Made the support pieces for the hood
  • Cut and drilled holes for the L-brackets that will be holding the support pieces in place
  • Finished the driver station
  • Had to counter sink the holes for the screws and make cutouts for the joysticks and the control system
  • Attached the polycord with the rollers and had a successful test run
  • Made changes to the angling of the board in the back by making it closer to the roller
  • Had to enlarge the side holes to avoid the metal rod from catching every once in a while
  • Changed the positioning of the metal plates from outside to inside to be able to mount the plastic
  • Cut and changed the positioning of the metal plates in the front to be able to have more space for the balls
  • Had to re-drill the holes to fit the plates

Summary of 2/14/09 Meeting

Posted by Eric on February 14th, 2009

Today we did the following:

  • Finished assembling the rollers
  • Finally mounted the encoders
  • Cut all the plastic to size
  • Re-soldered and re-wired everything….again
  • Ran into a problem with the left motor, but it was just a connection problem
  • Started working on the driver station, and decided on a 2 layer station
  • Mounted the second level of electronics (the bridge, and 2 jaguars)
  • Made all the wires neater with zip ties
  • Figured out a way to mount the slope so that the orbit balls will come up better
  • Mounted the Fisher Price motor for the front roller, along with a sprocket, chain, bearings…
  • Bought bright, neon orange spray paint for our team number on the bumpers
  • Mounted two more triangular plates on the frame

Summary of 2/13/09 Meeting

Posted by Eric on February 13th, 2009

Summary for Friday (2/13) workday:

  • Worked on rollers more
  • Figured out that the ABS was going to be too big to just screw onto the PVC, so slivers of the ABS were cut from the piping and then fitted onto the PVC.
  • We were able to cut the conveyor belting into strips and mounted most of them onto the rollers
  • All the ordered materials arrived: encoder mount, extra round tubing, and the conveyor belting
  • Replaced the wires and crimps on the electronics board (crimps kept falling out, and some of the jaguar wires weren’t the correct size)
  • The battery mount was screwed onto the frame
  • Mounted two more triangular plates on the frame for support
  • We were photographed by our school’s yearbook team

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We managed to finish 1 and a half of these rollers, but we need a total of 3.

Summary of 2/11/09 Meeting

Posted by Eric on February 11th, 2009

We were running short on time, so we decided to meet after school on Wednesday, and did the following:

  • Started to make rollers
  • Cut metal pieces/bars to mount the rollers onto the superstructure

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Summary of 2/7/09 Meeting

Posted by Eric on February 7th, 2009

At today’s meeting we finally started to build our robot’s superstructure, and among other things:

  • Finished bumpers
  • Cut, sanded, pounded, measured, center-punched the metal pieces supporting the basic frame
  • Cut 3 inches off the wooden board holding the electrical components to make space for the ramp
  • Asked about plastic for sides of the robot (~$100 for a 4′ x 8′ piece)

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Starting work on the superstructure……

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A picture of the robot at the end of the workday.

Summary of 2/4/09 Meeting

Posted by Eric on February 4th, 2009

We had a short after-school meeting on Wednesday February 4th, and accomplished the following:

  • Wired up the signal/diagnostic light.
  • Attempted to install the accelerometer, gyro, and encoders, but we didn’t have a soldering gun at the time.
  • We also prepared the angles and wood boards for mounting the bumpers.

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The bumpers are almost ready to be mounted onto our robot.

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Hard at work…modeling and programming.

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Brian and Jeffrey working on the wood board bumper mounts.


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