02-04-2007 16:39

EmoMike

Re: pic: Davis Bot Left Disabled

All i have to say in response to this is;

How?

02-04-2007 16:39

Kyle

Re: pic: Davis Bot Left Disabled

I would like to know, WHY?

02-04-2007 17:03

Peter Matteson

Re: pic: Davis Bot Left Disabled

That's at least the second battery on the field incident I've heard about this season.

02-04-2007 17:03

inphiniti

Re: pic: Davis Bot Left Disabled

These blast points - too accurate for Sand People. Only Imperial Stormtroopers are so precise.

02-04-2007 17:11

Bill Gold

Re: pic: Davis Bot Left Disabled

We have a winner

02-04-2007 17:12

Kyle

Re: pic: Davis Bot Left Disabled

Thats crazy that you posted that I was just watching that movie like an hour ago.

02-04-2007 17:13

Nuttyman54

Re: pic: Davis Bot Left Disabled

And this is why we limit the innertubes to 12m/s...

02-04-2007 17:16

ChrisMcK2186

Re: pic: Davis Bot Left Disabled

You obviously didn'tread the fine print on the manual.

Tough break.

Chris

02-04-2007 17:32

115inventorsam

Re: pic: Davis Bot Left Disabled

Ouch

That scene was so bad that I didn't even see it happen, I looked down for just a moment to write down some scouting notes and when I look back up, there's a mess on the field.

And that's our robot in the background, we ended up getting picked by them for eliminations.

02-04-2007 17:48

danshaffer

Re: pic: Davis Bot Left Disabled

i saw a few of these too. please, guys, build a real battery mount, preferably welded into your drivetrain.

02-04-2007 17:56

Re: pic: Davis Bot Left Disabled

I was watching that. That basically was the defense scene at Davis. It was intense. I believe just about everyone without bumpers had something like this (but not to that extreme) happen to them.

Davis was insane-like-a-fish!

02-04-2007 18:42

Koko Ed

Re: pic: Davis Bot Left Disabled

That robot looks about in as much bad shape as Greg's battlebot did.


And that robot was designed to slice through anything in it's path (literally. I found video of it doing just that on Youtube). What robot did that to that poor little robot?

02-04-2007 18:46

billbo911

Re: pic: Davis Bot Left Disabled

I have pictures oh this from the opposite angle. We were on deck when this happened. I'll try to post them later.
I asked the team about it after the match when they were picking up the pieces. Let's just say, there is a really good reason you use polycarbonate and not acrylic on robots.

02-04-2007 18:59

EricH

Re: pic: Davis Bot Left Disabled

We used some acrylic on one side of our mast in 2005 until we got lexan ready. Davis rolls around, and a team was particularly obnoxious in defending us in a couple of rounds (until we started lifting them by way of a tetra, then let them escape--but I digress). One round, they went up our (1/4"+ lexan) defensive wedges and hit the acrylic. The acrylic broke and we switched to lexan as soon as we could. Acrylic isn't a good idea if there's any chance it'll get hit with even moderate force. I don't think we've used acrylic since.

02-04-2007 19:00

Sam N.

Re: pic: Davis Bot Left Disabled

Was it harker? I think it might have been harker. They had the huge omnis that would climb on top of everything. They shredded our bumpers when we got into a pushing match with them during a practice round. We won the pushing, but they tore our bumper fabric up. I thought that stuff was tough too! Nothing a sewing needle couldn't fix though.

Even though those Harker wheels were deadly, they still were pretty cool.

02-04-2007 20:05

MrForbes

Re: pic: Davis Bot Left Disabled

that is the second battery on the field that I saw at Davis, and I didn't see a whole lot of the matches! 1031 had theirs come out too.

I think I saw two more batteries come out at AZ, they might have been 60 and 1290?

02-04-2007 20:05

ShadowofaCat

Re: pic: Davis Bot Left Disabled

oh wow..ouch
i feel bad for the robot
x__X

02-04-2007 20:25

bhsrobotics1671

Re: pic: Davis Bot Left Disabled

can u email me the video at all or send a link?

aandreww11@gmail.com

thanks

02-04-2007 20:32

FunkyRatDemon

Re: pic: Davis Bot Left Disabled

Ouch! I was about 20 feet away when that happened (Mascot area) and the crowds response was non-to-eager...

02-04-2007 20:37

Arefin Bari

Re: pic: Davis Bot Left Disabled

umm... how many penalties were there in that match?

Is there a video?

Which team's robot is that on the right?

02-04-2007 20:39

Re: pic: Davis Bot Left Disabled

That bot is 1560, from Pinewood. They had a very nice arm, if a bit wobbly.

02-04-2007 21:04

=Martin=Taylor=

Re: pic: Davis Bot Left Disabled

Thats really sad

1560 had one of the best decorated robots this year, and its a shame it got destroyed.

Here's what it used to look like...



Team 100's "sucker" and arm developed some serious stress fractures at Davis. The polycarbonate armor got some serious dings. But the bumpers... ALL of the cordura was ripped along the bottom, and the pool noodles were hanging out.

That was a brutal game.

02-04-2007 21:27

Grant Cox

Re: pic: Davis Bot Left Disabled

Holy cow... as a driver, I'm not sure I want to see a video of that taking place *shudders*

Dont let it bother you too much though, skimming over rule G.6.984 is a common mistake that many teams make. Good luck on it next season

02-04-2007 21:38

EricH

Re: pic: Davis Bot Left Disabled

He was responding to a post about blast points and Sand People--the movie is Star Wars: A New Hope (also known as Episode IV).

I am not sure I want to see video of that match--it'll probably be more brutal than the regional eliminations I watched on Saturday!

03-04-2007 00:59

pakratt1991

Re: pic: Davis Bot Left Disabled

That's the 2nd out-of-robot battery experience there was at davis! WOW!
to bad I missed that match!

03-04-2007 01:05

Darkswordsmith

Re: pic: Davis Bot Left Disabled

yeah, that game was just brutal. That robot got shreded completely, one of my teammates was crying in the stands. Surprisingly, no yellow card was given in that game i think.
Anyways, Davis' defense was crazy. We had to change the gearbox b/c it was damaged somehow from all those pushing...

03-04-2007 11:54

Commander Wolf

Re: pic: Davis Bot Left Disabled

Team 1560 has learned their lesson concerning acrylic XD

The panelling had already developed fractures over the course of SVR and earlier Davis qual matches which was bridged with aluminum. When the Harker bot (1072) hit us the panelling literally exploded.

Luckily most of the acrylic was cosmetic panelling, save the back panel which did hold the battery down. All the moving parts of the bot were still completely functional after the round. Harker gave us a piece of Lexon which we subsequently used to re-cover our electronics and we went on pick the number 7 alliance at Davis.

Oh, and we won that match too

03-04-2007 12:14

Jeremiah Johnson

Re: pic: Davis Bot Left Disabled

WOW. Yeah, can't say I like the way you've got your electronics covered, even with the side panels. An arm could easily accidentally reach down in there and detroyed everything.

03-04-2007 12:36

Wayne C.

Re: pic: Davis Bot Left Disabled

If that picture isnt the greatest ad for using bumpers I dont know what is...

03-04-2007 15:04

Travis Hoffman

Re: pic: Davis Bot Left Disabled

This qualifies as a candidate, I think - I was watching these last night - check out the autonomous bumper to bumper hit:

http://www.soap.circuitrunners.com/2.../oh/oh_020.wmv

03-04-2007 15:20

danshaffer

Re: pic: Davis Bot Left Disabled

our first grabber was acrylic, as was our nice pot mount. to demonstrate why acrylic shouldn't be used on robots, our build captain threw the grabber on our shop floor. it shattered, and we moved to a lexan pot mount and a lexan + aluminum grabber.

03-04-2007 15:34

Alpha 997

Re: pic: Davis Bot Left Disabled

Yeah I was worrying about our platforms getting tore in pieces because we don’t have side bumpers. But those carbon fiber and fiber glass honeycomb platforms proved to be stronger than I thought. We have a small dent on the fiber glass side and that’s it. Our bumpers got ripped off of our robot a couple of times though. Then again, they were attached to our robot by a few wood screws. I’m making unbreakable bumpers for national.

03-04-2007 18:18

Re: pic: Davis Bot Left Disabled

Be wary... this is FIRST... If you say it's unbreakable, someone will find a way to abuse and break it on the field.

But anyway, I was amazed at all the defensively flimsy robots this year. It was clear from the existence of a single scoring area that the defense would be disturbingly heavy, and so I was surprised when I saw so many casterbots and bots without bumpers.

03-04-2007 20:30

Alpha 997

Re: pic: Davis Bot Left Disabled

Yeah but this is not battlebots, so I think as long as I bolt them down well, they should be fine.

03-04-2007 22:43

eugenebrooks

Re: pic: Davis Bot Left Disabled

Review the rules with regard to the bolts that are supposed to be
used for bumper attachment. A specific bolt size is specified.
You now know the reason for that. The inspectors at Atlanta
have promised to be more picky.

Eugene

03-04-2007 23:32

whytheheckme

Re: pic: Davis Bot Left Disabled

I seriously would like to see the video of this match... I want to see exactly how this happened.

Does anyone know if any yellow cards were given as a result?

Jacob

03-04-2007 23:36

Jeremiah Johnson

Re: pic: Davis Bot Left Disabled

They mentioned that no yellow cards were given out.

03-04-2007 23:37

whytheheckme

Re: pic: Davis Bot Left Disabled

Wow. We ALMOST, I mean, like, were this close <--> to getting a yellow card, and that was for playing 'high speed defense'... I guess the ref really makes a difference.

Jacob

04-04-2007 01:02

Alekat

Re: pic: Davis Bot Left Disabled

Here's a little more of an action shot.


Obviously several bots were involved, and I think it was just a matter of combined forces on the exposed (and kinda brittle) outer plates. I'm not really sure why the battery popped out, but I know things didn't get rough enough to merit a yellow flag.

04-04-2007 01:17

Otaku

Re: pic: Davis Bot Left Disabled

Ahh, Second bot I've seen with a fallen battery at Davis. I think it happened to 1031 as well.

04-04-2007 23:13

Flanamana

Re: pic: Davis Bot Left Disabled

Haha that's not just a fallen battery. I know it's prolly been asked before but is there a video of this somewhere?

05-04-2007 00:41

billbo911

Re: pic: Davis Bot Left Disabled

As far as I know, 3 bot's lost bats. I have pictures of ours (1147), 1031 and 1560 all with a bat on the floor. I'd post them here but I can not attach pics in this thread.