I don’t do this to reveal all specs of our robot, but I like to let other teams know what’s going on in other states.
We went to a competition in Hyrum, Utah on the 15th that was run very well. This video is of the first finals where 5212B and 2131C (us) scored 82 points in a match. In nearly every match we had that day, we built 7 skyrises in about a minute. The only times we didn’t build 7 high were when our alliance partners couldn’t score on a full skyrise.
Enjoy the video!
Thanks for the video. I’m fascinated by that chain bar SkyRise grabbing mechanism you created. Is that your own idea? How on earth does it unfold from such a complex machine and snap into position? It’s totally freaky to watch it in action. :eek:
Awesome job.
Thanks, it’s been the most consistent skyrise builder at competitions we’ve been to, but we are working on something faster. This was not my idea originally; the first version of it that we saw was made by a 1497 team–we were just able to improve it. The clamp section on ours folds back to fit within specs and a bunch of rubber bands snap the clamp up and keep it in place the first time the chain bar moves back.
Faster? :eek: Any faster and it would be just a blur… and then the audience wouldn’t be able to appreciate its unearthly, creature-like movements. It’s too bad there aren’t awards for the most organic, alien-looking designs.
Hey, wait a second… there’s something about that SkyRise gripper that kinda reminds me of something…
I was really excited when I saw your device, because I had been cadding something very similar (it just rotated sideways, like 1497’s) since Worlds. I think that all the top teams will eventually have something similar, or a lot of drivers practice with a good skyrise intake. Our planned (final) programming skills routine mostly consists of building the entire skyrise with one of these devices.
We could definitely be faster. Just watch the Toronto finals. 4 skyrise sections in 15 seconds with a little time to spare, and on a slightly slower lift.
The double reverse six bar once really inspired me to do the same design for the skyrise intake. I know that it is not the fastest (possibly the second fastest), and good driving can match that speed with a normal robot, but that idea is just too cool. I remember 400X has a similar mechanism, but I have never seen them use it. Mechanisms like this really will boost programming skills score-- you only need to precisely tune your code and positioning to get into the right spot, and then the accuracy of building is guaranteed.
But I decided that I still want the 3 cube capacity with a decent skyrise speed rather than super fast skyrise and 2 cube capacity.
Here’s another view of the same match.
I believe that 400X uses a loose-hanging passive plunger for the skyrise.
At end-game, Skyrise building speed is everything.
That is one very nice robot, I really like how it remains stationary whe building the Skyrise. How long does it take you to build a full Skyrise? As with this you could potentially do a good skills run and a very good programing run.
^ Yes agreed, However accuracy is also key to building a Skyrise. Which this robot certainly has.
What is this strange otherworldly contraption you present to us? :rolleyes:
I was debating over myself about capacity or skyrise speed. Turned out I think I liked scoring three cubes and letting everyone cheer for our team better… Usually people cheer the most when they see 12 point dumps.
In end games, things will bear down to both teams can easily build a 60pts tower and cubes on field goal are game deciders. So the earlier a skyrise bot complete its job of 7 sections, the more time it can get for cube scoring and gaining action. The bar lift in the video is definitely born to dominate field goals and quickly fill skyrise, but the dbr6 is more like a nicely balanced hybrid and has a reason to be picked by whatever high ranking teams. (Well likely they are high ranking teams)
Just snapped a pic of match results. I wonder how they got 58 in the second final. Any issue happpened?
https://vexforum.com/attachment.php?attachmentid=8826&stc=1&d=1418994576
Edit: Comp URL Top of Utah VEX Competition : Robot Events
3rd alliance partner probably not as good…that would be my assumption.
Our 3rd pick wasn’t the best choice on my part and it was just a bad run. I think we ended up with 3 or 4 cubes on a 5 tall and a few cubes on the posts. I wasn’t really in it that day.
The 82 point run certainly was a good run. I’m confident if we align again, we could easily top it though.
I saw that you are registered for the syracuse competition. I’ve made some major improvements and should be much faster at cubes as well as skyrises. Also realize that other Utah teams like 185a, 2131D, and maybe some others that will have improved greatly.
I think that being able to build the skyrise without moving the whole robot is extremely important. It allows you to build quickly and accurately as well autonomusly.
Good to know. Did you get that 3 skyrise auton routine working again? Our robot is still pretty much the same aside from some fine tuning. We’re prototyping a second bot so we haven’t done a whole lot to the 8 bar bot recently.
Im trying to decide if the overhead skyrise manipulator like yours or the horizontal one like 5225a is better
I haven’t worked on that auton for a while, I’ve been working on a rebuild too. But we should be building some skyrises by Syracuse. If you don’t mind me asking, what kind of bot are you building?
We’ve been working with another RD4B and it isn’t bad, it can score on a 6 and build a 7 but stability is something I’m still not liking. We have a 4 stage scissor with a belt roller and pneumatic claw on the drawing board now though. We’re gonna stick with the 8 bar until we get the scissor refined enough to outdo our 8 bar, which won’t be easy…
I don’t think most scissor lifts will be fast enough by the end of the year because of how inefficient they are and how much metal is there. But they can be very stable.
Here’s our robot at the Mountain Crest competition about a week ago.
That Skyrise building is very fast and impressive. However from this perspective of the video it seemed at points that the robots postion between the autoloader and base meant the driver couldn’t position the sections that well, is that the case or do I just have no idea what its like to drive your robot. 
But all the same the height and speed is still amazing.
Not long to wait then :rolleyes:
114 days till worlds. (as of Dec. 22, 2014)
They have 114 days to get fast.
If you want to see a fast lift, I ran a cross this video the other day… https://www.youtube.com/watch?v=ACyThn0QHCM