I was wondering if anybody has seen any robotics tip over during the competitions this year?
It seems less likely because of the trailer.
I remember is happening a couple times last year when tall robots would ram into the overpass. Or in 2006 when they had to climb the ramp at the end of the match.
Thanks
I know that at GTR we nearly tipped 1547’s trailer over during a match, but as far as robots go, I have not seen a single one tip.
We have been close and have gotten under trailers but Tipping a robot over is a task to be done in the offseason (Hint, requires more than one robot).
My team honestly tried in Autonomous going full speed into a robot going full speed but we unfortunately missed and went full speed into the airlock (even getting some paint on our robot)
Wait, so you were trying to tip someone?
973 got extremely close to tipping over at a few of the regionals and our trailer got over half way up onto the wall during one of the matches at champs but we never tipped completely.
842 almost tipped someone over if it wasn’t for the trailer the other bot would have fallen over
During qualification matches, team 341’s turret completely fell over causing us a penalty for exceeding the bumper limits haha
I think 359’s trailer could have been tipped at Champs after a ball got stuck under it. However, there was only 25 seconds or so left after the ball was stuck and it was never rammed. With the surface giving so little traction the wheels just slide when hit, and it would probably require something getting under teh robots and a simultaneous hit of 2 or 3 robot on one against a wall, and that 1 would have to have a very high center of gravity. So all in al it’s very difficult and probably never happened.
as far as i’ve seen. Not a single robot has gotten tipped all of this year
for those of us who remember, Tipping five years ago was almost an every match occurance. I honestly miss robots tipping over, those were the days…
Start an FTC team. The small chassis sizes combined with high-friction wheels and tons of torque motors results in robots that go down more often than submarines with screen doors. On the other hand, a really large number of them this year were self-righting. 575 must have flipped over backwards an average of three times per match, and was not unusual. The faster the robot, the more likely they were to go over. With 575 it was accelerate too hard, flip over, whack bucket over the top while accelerating hard and the robot was back up and running.
im not entirely sure about robots tipping on the field, but during that long walk to the playing field our robot cart almost tipped over cracks in the trail… While our robot was still on it >.<
You mean fun stuff like this?
Us and our rookie tipped over…fun.
it was fun having to strategize for CoG… not to mention there were no bumpers and wedges were legal back in those days… It was great doing the tipping, and sort of kind of exciting when you did get tipped (if it was only a couple of times per regional)
lotsa robots fell over in 2006, our rookie year, including ours on many occasions, so we learned all about CG, and haven’t had one come anywhere near falling over since.
After experiencing the distinct displeasure of having their robot tip over during the 2006 GTR semifinals, Team 4 revealed their redesigned “tip-proof” robot](http://www.youtube.com/watch?v=upk5Mp6jTFA) in Atlanta.
After seeing this demo, Team 980 does all it can to maintain a low c.g. in our robots.
BTW, I’ve also seen stickers on the underside of robots stating: “If you can read this, please help me up.”
I don’t really. A high C.G. cost my team a shot at the finals. Having a little interaction involving another robot and the step didn’t help…
Yeah, we had a high CG and a wheelie bar, and still went over at least 4-5 times. One was a fall off the bar. One was a run-in with the border. Two were caused by robot interaction (and one of those, we were about to get up, but the robot came back, tipped us onto our side, and shoved us into a ball corral).
The fun part was the next year. We had wedges on our sides and a flat traction-reducing plate on the back. The one time we tipped was high entanglement, and we went over backwards. The fall freed us, and the next thing you know, we’re stacking away.
Yet it’s a bit more exciting when a robot is about to go down and doesn’t, or goes down and gets back up…
And back on topic, I don’t remember a single robot tipping this year.
I saw a few teams teeter on Saturday. One got hung up on another robot but was stopped by the driver’s station. Eventually the two robots were able to separate. Another robot jumped and got fully up on a trailer. Luckily both sides of the front were hung and the robot didn’t go over. Unfortunately, all the wheels were off the ground the and the robot didn’t move the rest of the match.
Agreed, I remember in 2005 2 cases where tipping was an interesting occurrence for us. First was when we got knocked over and actually bounced off our arm and came right back up (it was designed to be able to right us should we tip) The other was when 33 brought their arm down on top of a tetra we were holding by accident (they were on our alliance) Instead of losing the tetra 33 was pulled sideways and onto the ground. It showed how good a grip we had on the tetra.
And no, I saw a lot of hard hits but no tipping. As opposed to last year, I saw lots of robots on 2 wheels going around corners and several on no wheels after a failed hurdle.
One last thing, plenty of robots put funny stickers on the bottom explaining that if you can see this something bad happened. On a related note, in 2004 RUSH had a sticker about if you can read this we are hanging.
166 is proud to say that they haven’t tipped since week 1 in 2006. After the regional, we made modifications to lower our center of gravity and havn’t tipped since.
Our 2007 and 2008 robots featured mecanum wheels and an extremely heavy drive chassis (70-80 pounds) so neither of those ever tipped.
A total of seven official competitions and even more off-season events without tipping.
I made a point somewhere here about how teams shouldn’t put so much effort into making a light chassis. Put more effort into making your manipulator light.
I make that point over and over again.