Flipped?
 

Just out of curiosity, how many teams have had their robot flip during competition?

Our robot flipped when it went up against swamp thing at UCF

we flipped 4 times at SVR so far... every match weve been working in except one weve flipped... oh well... its all Karma baby, we flipped a team yesterday:( so its coming back to get us now. Now if our driver just could figure out that when your being flipped, you cannot keep going forward...

Cory

I don'tknow
 

Hmm. I don't know if this would be a bad thing or not, but maybe you could add a wedge to your bot? Not a really steep one because that's calling for a referee to give you a foul. But one that is low to the ground so robots can't come under you. I'd say 60 degrees to the horizontal might do. If you do that the other robot will loose some of it's normal force and distribute it to you. In a pushing match so should be more firmly on the floor (it works wonders for traction but I'm not 100% sure for flipping). It's harder for them to come under you so you're more likely to get the traction benefit and there being less chance for a flip. (force of friction, "in the ideal" is commanded by the normal force). Still, if you got the room it's worth a try I think. think

Good luck! Expecialy 59. You guys allied with us back in the twice I think. But that was back in the day, 00, 01 ish. :)

My teams bot (302) hasnt flipped, its pretty much impossible for our wedge design to flip. Contrary to people's original ideas, we havent flipped anyone with it yet, but we have flipped our parters up in many matches, specially one memorable match where we flipped our partner 67 with 15 seconds to go at the bottom of the ramp back up and we both made it on the top to win the quarterfinal match in eliminations where we went on to win. Thats the flipping we do.

In the practice rounds we flipped if we went up a ramp, touched another robot, tried to knock down a stack. We completely re did our robot and haven't flipped since.

i flipped out bot 4 times, 2 of which in practice. We were having trouble with one of our drill motors so i would go straight up the ramp, the motor would give , id do a 180 and flip. We have alot of weight in the back. We are still thinking about making a little wheelie bar to flip us back over. should be interesting!

We were lucky enough not to get flipped. We almost did though but we were ok in the end.

we have not been flipped, because we have a very LCG bot. look here.

our team only flipped in one practice round and mainly b/c when i was driving the arm i had a small mental lapse and didnt put it down when we went over the ramp, and then someone rammed us going down, and over we went. It never happend again though

Re: I don'tknow
 

I came up with this idea yesterday, and was convinced it would stop our flipping problems...It probably would of been a 2-3 hour job, which we didnt have enough time for...they may work on it this morning, I don't know since ill be taking a practice AP Test :(

Cory

at GLR in our final practice round we had one of our drivers flip the 'bot twice and in the 2nd "period" of that practice round our best driver flipped the 'bot too. the next day in our second qualification match we flipped on the ramp almost as soon as auton_mode = 1 turned to auton_mode =0 because our driver (the one who had already flipped it twice) bumped or jerked the joysticks and the 'bot flipped over back wards, again

Haven't Flipped in two regionals
 

We are one of the few stackers that has not flipped, although we've come really close twice. Our CG is really low for a stacker (the drive weighs 104 pounds, the stacker only 26)

I like the wheelie bar idea. then you know you won't get flipped. You can add another function on it too maybe like taking up space so people can't get on the ramp as easily.

:)

Flip Free
 

Our robot hasn't flipped in 2 regionals Pittsburgh & Great Lakes!

We have almost flipped a few times but we were saved by our special anti flipping mechanism. We have great drivers but it has nothing to do with them. :D

Our robot flips...Though normally it is from our driver, and not other bots....Pretty sad isn't that? Only towards the end of competition, did he grasp the concept that you can't change directions quickly on the ramp with a high CG....

we didnt flip at the midwest regional. we did flip some other robots though.

It doesn't matter if we flip, our robot drives upside down.

A low CG only means that you won't flip yourself. You can still be flipped. Take a look at this picture:


A robot can be flipped if it has the correct obstruction. (Such as 111, 229, 302, etc.
-
the question of the thread was "Did you flip?" You answered, but with a faulty reason. That's why you didn't flip yourself.

On the topic at hand, team 470 did not flip. We may be able to right ourselves if we ever do, but that hasn't been tested.

102 flipped Cybersonics in Philly when their pusher caught our front when we hit head on on the ramp. We have a low CG, but the leverage was just right... (Picture)

That was the only time in two regionals (as I knock wood).

pretty cool auto action.

We flipped once between two regionals, but we just used our arm to pick ourselves back up.

We have been to one regional (Motorola Midwest) and have not flipped. We came VERY close in our first match, and if our excellent driver hadn't acted so cooly we would have. In fact, in onje of the qualifying matches, we had used a bin to flip team 292's bot back onto its wheels after it had flipped, again thanks to our excellent driver! We won a play of the day award from another team for that.

Our robot flipped twice at regionals. We had used two (?) sets of (interchangable) wheels and one set had some over traction issues

We flipped twice at GLR (once in practice, once in qualifiers). Then, we installed a self-righting mechanism at Midwest, tested it out 3 times, and haven't flipped since.

Flipped?!
 

Our robot is only 13.5 inches high, so it can't really be flipped. However, it has the ability to flip any robot that challenges it for the ramp in autonomous mode.

We don't flip...
 

...but we can pop some serious wheelies. We took the grabber assembly off of our stacking mechanism, replaced it with latex tubing, and placed 20 pounds worth of steel directly over our two-wheel drive. Whenever we accelerate quickly we pop a small wheelie.

We haven't flipped yet, but we have apexed many times. If you're wondering what "apexing" is, it's the act of forming a triangle with another robot on the ramp when you're both pushing equally hard. It's quite a sight to see. We flipped somebody accidently when we apexed and they didn't stop moving.

Our robot hasn't been flipped. It has an extremely low cg so I doubt we'll see it flip at nationals. I lost track of how many robots we've flipped, and I'm surprised to see that so many teams made their robots top heavy with this year's game.

13.5 in? ours was twelve
 

Once again like gadget said, a low cg does not mean you will not get flipped. Our robot is 12.5 inches tall and we got pulled on our side, and then completely over. It is the nature of the game this year. Instead of having a goal in between competing robots, you have robot on robot action, which leads to a lot more "robustness testing"

Very true Alavinus, it is the nautre of this years game. I saw a whole lot of flipping, some of which was in autonomous mode. Gadget470 you'rw right to. Just one thing i was wondering, if the center of gravity of a bot is closer to the front or back side, will it tend to lean or flip on that side? (i've taken physics, and know that book's answer, but what i saw at UCF proved otherwise.

Re: Flipped?!
 

Ameya, up until the moment your 13.5" robot flipped our 13.5" robot, I would have said the same thing!

See you at Rutgers!

Good point...I guess under the proper circumstances, any robot can flip. What I meant to say is that our ram provides a measure of protection against flipping. We'll just how well that works in Rutgers... :)

we only flipped once
 

Team 222 only managed to flip once during a collision in the autonomous mode with our partner....before all was said and done, three machines we piled together and even with the pile up we were able to right ourselves using our arm! Our machine suffered no damage and no broke parts in two regionals!

We flipped a couple of times. Everytime our robot went at full speed it popped a wheelie but we wheelie bars to prevent this.

The wheelie bars weren't enough when we reached the ramp so I and the other driver had to learn how to drive in a way to avoid flipping over.

We also got flipped over by a robot that picked up the front of our robot. We were so surprised. :ahh: I thought that was illegal but the judges said that it was fair. I was not sure. Ah well. I trust the judges. (this is sucking up....lol)

Not judges, referees!
 

Not judges, referees!
DON'T GET THEM MIX UP!

Judges don't know the game rules and don't need to know.

:D ;)

anyone's bot can flip...i spent the last two weeks of build season driving like a maniac (go figure we'd win most agressive driver in pitt) and trying to flip our bot in n e way...we didn't even flip when 276 climbed on top of us...unfortunatly...in elims, we got stuck on another bot, who drove us backwards and flipped us...but we got back over...and, there is no way to flip us when our slapper is down....our bot is cool this year ;)

flipped lol!
 

we have been flipped and we even did a somersault but our robot is robust and we can right ourselves very quickly so it doesnt matter if we get flipped.

Ooh Yeah!!!
 

Forgot about that.

I blame it on my lack of sleep. I replied very late at night, past midnight.


I do think the judges and referee do their job with great excellence (sucking up again).:yikes:

We did drive on top of another robot during the elimination rounds. That was the closest we came to flipping. It seems very difficult to flip this machine over, but anything can happen.

Anyone flipped at simi-finals or Quater Finals so far?

we had a match during the semis with 236 and 782 both flipped and couldn't get back up. Very tense. The other alliance didn't take advantage of it though.

our robot is under 14 inches and we still have flipped several times. weve notice that trying to push somebodt off the koh will flip us. Our wheels are conceeled in the frame, so its not like they are driving up on the other robot either.

Kevin Antaki
Team 481

IM Me: xpalendocious