Chinese Skyrise Match

VEX Robotics Competition Discussion VRC > Skyrise (14/15)
1

I felt that this video was worth sharing with the vex community. While I did not participate in the event, I found this match very interesting.

1) There are four scissor lifts. And they all work well–really well! I’ve never seen a match before with so many scissor lifts that were so stable, fast, and powerful. It’s worth paying attention to the design of these.

2) There are not any complex object manipulators. The two robots starting on the right side (viewpoint of observer, one robot from each alliance) use claws exclusively. Simple and effective.

3) Nothing breaks down. No robot ever tips over, no lift bends in half, and nothing falls off the robots.

4) Relatively high scoring autonomouses. I count 12 points for both blue and red. Again, simple and effective.

5) There is virtually no interaction between robots. I don’t believe Skyrise was meant to be as interactive a game as Sack Attack or Toss Up. Most of the points are around the “un-interferable” (made up word) skyrises. This makes the game all about consistency and reliability.

Anybody else willing to offer their comments/analysis of this is welcome. I’m especially interested in those who participated in the event.

2

It seems that 1:15, 1:21 or 1:25 are the gear ratios for this year!

Extremely stable designs and awesome driving. That 3 cube capacity is definitely a game changer!

3

6) Perfectly synchronized autonomous routines for the identical looking robots which built skyrises…

4

Yeah, both alliances seemed really similar. They both had a dedicated skyrise-building robot which had a claw for the skyrise sections and another claw for the cubes. And, they both had a cube-only robot with a hook conveyor belt intake.

I think that generally the games start out with specialized and reliable robots and not very much interaction at all. Then, as the season progresses, the robots become less specialized, and the best robots will be able to do all parts of the game. At this point reliability becomes less of a factor (as most good robots will be reliable), and we will see more complex designs.
Also, the games tend to get more interactive as the year goes on. By worlds, we’ll probably see teams going back and forth as they descore cubes and fight over posts.

Thanks for posting the video! It’s exciting to see how far some teams have come already, and it’s only September.

5

Very impressive. And so early in the year. I would definitely keep up throughout the season with these teams.

6

I hate being “that one guy” but the autonomous routines in this match are illegal :confused: it is not permitted to begin the match with the cube touching the skyrise base. In this situation however, they both were.

The rule violation is <SG2>. I’ve quoted it for you here and bolded the violation.

7

No, if you look closely, the robot holds it in the air. And .1 seconds into auto, he drops it onto the base

8

Always impressive, the Chinese. Note their well developed strategy, so early in the season! A scissor lift, something they seem to favor, combined with the hood/tank thread intake seems to be the way to go if your looking into a scissor lift. This match also shows the ridiculous amount of metal required to reach the heights imposed this year. Unless…
Edit: Spelling error

9

Just curious, does anyone know the end ruling the referees made on the red alliance robot that went into the blue alliance protected zone? If it was in qualifications I could see how it wouldn’t have called for a DQ since it wasnt match affecting.

10

If that was a qualifying match then I REALLY want to see the finals…

11

As I was hanging out on Chinese VEX forum these days, I was still surprised at how Chinese tournaments do not have field control at all… All the teams had to make sure their programs worked correctly and not move at all before the ref said start…

12

Where is this place and how do you get to it?

13

Well, My robot, 7797E from China.
The red robot which builds skyrise sections.

14

It was a final match and red alliance got a warning because of that.

15

Very impressive!

Does anyone know if these are high school or middle school teams? I tried checking a database but it’s not clear from the school names.

16

  1. I’m assuming there were two 7797 robots in this match–one on each alliance. They’re extremely similar in design. Correct me if I’m wrong.

  2. I’ll also assume the other two robots are from the same school–7646. Correct?

  3. The title of the video is “First Ever Skyrise Match in China.” I’m thinking that this really means first tournament?

  4. If you don’t mind me asking, could you tell us a little about the design of these robots?

  • I’m guessing 4 motor lifts, 4 motor drives, and 1 motor for each claw.
  • Same drive and lifts on the 7646 robots, but 2 motors on the intake.
  • RobotC or EasyC?
  • What changes are you planning on making?
17

At first, I apologize for my poor English.
We are not from same school. We are from different schools but the same training center.
Both skyrise section builder are using 4 motor drives and 4 motor lifts. Other two cube machines are using two motor drive and six motor lift because cubes are heavier.
We are using easyc and cube machine is using robotc. Hope this may be helpful to you.

18

one of the keys to how they score skyrise sections is how they align themselves to the skyrise so fast

as you can see on the side with the skyrise claw there is something that fits the shape of a cube

they were also loading the sections slanted allowing them to be grabbed easier

19

Not sure whether the link works or not. I am using nook and url just messes up. But this is not a very big forum… just a small one where people chit chat.

20

I guess they are very likely middle school teams. China has exceptional middle school teams but the high school students are just too busy to spend a lot of time on VEX.