New to FIRST?

Hello, Robolions team members, mentors, friends, and community members! Welcome to "The Fourth Law of Robotics," home to University City High School's FIRST (For the Inspiration and Recognition of Science and Technology) Robotics Team. We hope to use this blog to inform you about what we're up to.
We compete in the FRC (First Robotics Competition), an annual competition where we have six weeks to build a robot from scratch. This year's game is Recycle Rush. We'll post updates here to let you all know what we're up to with building (and competing with) our robot!
We also are now competing in FTC (First Tech Challenge), the next level down from FRC. The game was called Ring It Up!

Sunday, March 25, 2012

The Regional

The Saint Louis Regional was rewarding and disappointing on several separate instances, but I think we can conclude the event was overall a great experience for our rookie members.

We arrived at the Chaifetz Arena on Thursday without incident and spent a day setting up our pit and fixing bugs in our robot (of which there were many). Shortly, Inspector Hartwig arrived to speak with us about our robot, and we were all able to adequately describe Thor's capabilities and materials. Our neighbours in the pit were teams: 3519, their area decorated with a rooster; 3330, "System of the Corn"; and 2978, the "Cavaliers," whose pit was particularly impressive with knights in armor and a nicely arranged set of tools. Our pit area was nothing special, but on the plus side, we consistently received :)'s on our safety inspections, and Ben and Mervin were able to hang up our banner (with some zip-tie difficulties).

The most exciting (and annoying) part of our day was when our team tried to show FRC officials our Bill of Materials for inspection. Marquise returned to me (I was in the stands, focusing on a game of dodgeball between the field crew) and related suggested improvements. This was all very confusing to me, as the BoM he handed to me was not the one I had written. With a trip down memory lane, we eventually realized what had happened: when I had finished the BoM, I had been told to save it on our team flash drive, but it was nowhere to be found at the time. Unable to locate it, I did not transfer the BoM for several more meetings, and by the time we did recover the drive I had forgotten all about it. This meant that our BoM was still saved to the CAD laptop in our lab!

Mr. Sarber, of course, drove right back to our lab and collected the laptop, for which we should all thank him. However, attempting to open the BoM on that laptop, I found that Microsoft Excel was not functioning correctly. I ended up saving the BoM to the flash drive as originally intended and opening it on Dan's programming computer, at which point we were finally able to show the correct BoM to the inspectors. There was only one suggestion, and this brought back another trip down memory lane: I had included the cost of our cRio on the BoM, $525, but the inspector pointed out two things. One, no item's cost on the robot should exceed $400. Two, wasn't the cRio included in our first ever kit of parts and therefore its cost was irrelevant? Mr. Sarber and I recalled that Quorra's cRio had burned out last year in competition (thank you, blog, for reminding me) and that we had bought a new cRio to replace it. The inspectors understood this and cleared us.

At one point, members of team 1985, "Team Titanium," stopped by at our area and spoke with Walter. A big fan of the award-winning team (which would later go on to win the Regional), Walter was in hog heaven and geeked out for a few minutes while the rest of us watched bemusedly. We were also visited by team members from Westminster Christian Academy, who also talked to Walter. Walter's friend Grace (not his sister) attends WCA, and Walter had been bugging her to join the team for ages. He was again happy to carry on a conversation with the quality team (I believe they went on to the finals as well).

On Friday, we began to play in the qualification matches, but these didn't seem to be going too well. Thor ended his first two matches on the ground, having fallen off a bridge while trying to balance with other robots. There were many such casualties during the competition -- Rebound Rumble is a dangerous game! Both falls damaged the board protecting our electronics, but we were able to repair the damage.

Our rankings were still promising at the beginning of the day. We found ourselves ranked #15, and subsequently rose to #7 -- within the top 8!! -- but we later dropped to #18 and finally #26 by the end of the day. Still, we were just outside the top 24, so we figured we had hope.

At lunch on Friday, we located a massive game of Ninja consisting mostly of team 3792, the "Army Ants," with a few members of other teams such as 1208, the "Metool Brigade." We joined and performed well, as Benjamin and Marquel are particularly dexterous and agile. Marquel spent most of one match on the ground and still nearly won! I can happily report that I myself did very well in the match I joined, lasting far longer than ever before.

After lunch, we learned that match #7, the first match we had played in, was to be replayed at the end of the day due to a Kinect station error. This was good to know, as we had lost that match and were eager to rectify that and improve our rankings.

Thor didn't again topple over, although he did break his hammer during one match. Eventually, we scored two 2-point shots during the hybrid period, which definitely restored any team spirit we had lacked previously. Congrats to Dan for programming that into the robot!

By Saturday morning, we proved we had more spirit than team 3284, "Laser," in a shout-off between our teams. This just goes to prove that although U. City isn't very good at sports besides robotics and field hockey, we still know how to make lots of NOISE! We got spirit, how 'bout you?

During a between-matches dance with the judges, our Robolions Walter, Grace, and Marquise got up to join them. Congrats for representing our team well on the dance floor! Everyone had best be glad it wasn't me out there.

After some more field resetting and confusion, Thor rose to 19th place, and by lunch on Saturday when alliance selections were made, we rested at 20th place. However, during the nail-biting tension of the ceremony, we regrettably weren't picked by any of the alliances. This came as a great disappointment to us for several minutes, but after a while we realized the Regional was still a great success. As Mr. Sarber pointed out to the rookie team on Friday, we had accomplished what we set out to do: build a robot capable of shooting a few baskets. That was the plan, and that was the end result, so team 3397 has done well this year.

Saturday, March 24, 2012

Andrew will be following up with a more detailed post about this past weekend's competition, but I just wanted to give you guys and overview of how it turned out!

We ended up winning 6 matches and losing 5. At the end, we were ranked 23 out of 43 teams- that's a record number of teams for Saint Louis- and though we did not get chosen for an elimination rounds alliance, we managed to balance on the bridge as well as get our autonomous mode working. There were a few complications with the arm at some points during the day, but our amazing build and programming teams got that all smoothed out. Overall we were very happy with how the weekend went!

See pictures on our facebook page! Search UCHS Robolions, and don't forget to 'like' us!

-Captain Grace

Wednesday, March 14, 2012

Back Again

After a shamefully long hiatus of frenzied work on a Latin project, I have returned to clear off the dust and cobwebs and revive this blog! Huzzah!

So, as some of you may know, this is one of our last build sessions before competition next weekend (conveniently during spring break, not-so-huzzah). We have a few things to tidy up before Rebound Rumble commences, such as the position of a ball-guider on the shooter. Henry and I maintain that our team motto should be "We know the game and we're gonna play it," so I'd like to remind everyone to go over the rules once more. I myself shall now proceed to do so before continuing the blog post.

...

Okay, that's done. In other news, one of Marquel's friends has started to hang around our build sessions and is apparently interested in making a documentary on FIRST. I promise a further update when I'm able to talk to her about it. A new student at the school also expresses interest in FRC, possibly a future member of the team.

Wednesday, February 22, 2012

It is bagged and has a name!

The robot(formerly known as Nameless) has been officially named Thor. That is all.

Tuesday, February 21, 2012

Shooter is Awesome

Hello all! Sorry for the hiatus- I've been busy with musical rehearsals and other various extra curriculars. Ok, enough about me, to the point:

Alas, today is the last day of build season. The team is bagging up the robot as I am typing. But we really pulled it together this evening and got a lot of work done. Here's a video of our shooter working:

http://www.youtube.com/watch?v=CKi8KyO7dIk

It's awesome.

However, as we were testing the drivers to see who will be our drive team for competition, we ran into a few problems with balls getting stuck under the robot. Yet another thing to fix at competition...

Later! Follow us on facebook!

Captina Grace

STOP BUILD DAY

It's hard to believe the day is already here, but work on Nameless will cease tonight at 11:00! In that time, we need to get our shooter operational and mounted on the bot, although we plan to take it off and put it on Quorra to test it.


Driving tests are currently being run. These will determine ultimately who drives Nameless at competition, a somewhat coveted position. Candidates include Walter, Mike, Henry, and more. There are actually two driver positions we can cover: the driving of the robot and the operations of the shooter. Both are quite important and we can take only the best of the best for the job.



Dan Land is occupied with sensitivity of the robot's drive train, or "Making it drive in the right direction."



The build team is perfecting our ball sweeper and mounting a sheet of lexan to protect Nameless's electronics (namely, the bridge and the power distribution board).



I'm happy to report our Bill of Materials is complete! At least until the build team puts anything else on the robot, ha ha ha.



We've experienced some conflict over some fairly trivial matters, such as what music we listen to and what we'll eat for dinner. Chinese or pizza? What do you guys say?

Monday, February 20, 2012

Tension is Mounting

This was our penultimate build session. Tomorrow, we work until 11:15 P.M. to get our robot together for the competition. Naturally, we're all anxious, but we know this year's robot is going to be great.

Working on the Bill of Materials, we've observed that our drive train alone costs more than Quorra! With all the resources going into Nameless, we know it will perform excellently. Incidentally, we want to save the BoM to our memory stick, but we can't appear to find it. Captain Grace, if you're out there somewhere, do you have any idea where it might be?

Our shooter is finally complete, although not yet mounted on our robot, and it works well. Here's a video of it in action, although I don't know how to embed it - there's more work for Captain Grace.

http://www.youtube.com/watch?v=CR5jua7OI0o