View Full Version : pic: Cornelius VIII - FRC469
Don Wright
05-03-2007, 09:39
[cdm-description=photo]27526[/cdm-description]
Ben Piecuch
05-03-2007, 09:43
If that performs anywhere close to last years' robot, you'll do very well this year. That ramp looks huge! I'm trying to figure out what the back portion of it does, the side that's mounted near the base of your elevator. Do both the elevator and that fall down to create a longer platform?
On a somewhat non-technical note, what material do you use to cover your bumpers, and how do you print your sponsors and numbers on them?
Looks great, hoping to catch some video of it this weekend.
BEN
Don Wright
05-03-2007, 10:53
Thanks...
We got our bumper silkscreened this year. Last year it was a lexan sticker, but that wouldn't conform to the standard bumper rules per the Q&A so silkscreening it was...
Yes, the mast lays down so we expand in all directions... And the mast/arm is actually the front...
Rich Ross
05-03-2007, 11:55
Don,
It's a pleasure to see the robot on CD before competitions.
Great work. are you in the 4ft class? Are there "drop-down" casters like 469 has had previously?
On the comment note: Congrats on the new robot. I have a feeling Cornelius will make many friends at GLR (and hopefully not too many enemies)
Don Wright
05-03-2007, 12:56
No, no drop-down casters this year...
Yes, we are in the 4ft class.
We hope to make many friends as well. We've made it nice and easy for other robots to climb aboard...
Rich Ross
05-03-2007, 13:31
Any chance at a picture of How easy??
Don Wright
05-03-2007, 14:03
Unfortunately, no... In 469 tradition, we have to finish something up on Thursday...
AdamHeard
05-03-2007, 14:57
looks awesome once again.... Too bad we can't play together until championships :( .
Being the driver of a rampless robot, I'm really like some of these huge ramps I'm seeing from veteran teams.
Lil' Lavery
05-03-2007, 15:23
While the metal grating is ideal for traction-wheeled teams, will your ramp provide any provisions for improving the chances of omni-wheeled teams at getting up?
I can't tell from the picture, but the section of the ramp that deploys from the rear one piece, or does it have a gap in the middle?
Is the device sticking out of the ramp at the rear just to ensure that your ramp doesn't become a "traction device", or does it raise the whole ramp to 12"?
Can you load tubes off the ground, or just the wall?
Is there a camera that I'm missing, is it coming later, or are you guys not using it?
What motors are used where, and are you using DeWalt transmissions again?
And of course, the perennial 469 question, HOW DID THAT MAKE WEIGHT!?! ;)
Sorry for the tons of questions, but 469 is really one of the more inspiring bots every year, and I'm dying to learn more about Cornelius. Good luck, I'm sure you will be a force to be reckoned with at GLR.
Hope you can pull off the ramp-ringer combo, nobody really has yet.
I am so thankful I got you guys in FF
BRosser314
05-03-2007, 16:42
I am so thankful I got you guys in FF
What are you refering to when you say us guys in FF???
Al Skierkiewicz
05-03-2007, 16:48
Don,
Can't wait to see it/you in a few weeks. Looks like a winner.
BRosser314
05-03-2007, 16:51
While the metal grating is ideal for traction-wheeled teams, will your ramp provide any provisions for improving the chances of omni-wheeled teams at getting up?
I can't tell from the picture, but the section of the ramp that deploys from the rear one piece, or does it have a gap in the middle?
Is the device sticking out of the ramp at the rear just to ensure that your ramp doesn't become a "traction device", or does it raise the whole ramp to 12"?
Can you load tubes off the ground, or just the wall?
Is there a camera that I'm missing, is it coming later, or are you guys not using it?
What motors are used where, and are you using DeWalt transmissions again?
And of course, the perennial 469 question, HOW DID THAT MAKE WEIGHT!?! ;)
Sorry for the tons of questions, but 469 is really one of the more inspiring bots every year, and I'm dying to learn more about Cornelius. Good luck, I'm sure you will be a force to be reckoned with at GLR.
Hope you can pull off the ramp-ringer combo, nobody really has yet.
No problem about the questions, And yes we were under weight and its our secret, not really but very conservative to some areas you can take off alot of your weight. Thanks for all the positive feedback.:D
Don Wright
05-03-2007, 17:08
We want to keep some secrets... If we tell all, there won't be any interest in us...
BRosser314
05-03-2007, 17:17
Don,
what do you think about adding some traction to the ramp for improved traction for those omni-wheeled robots.:D
We want to keep some secrets... If we tell all, there won't be any interest in us...
Oh, there will be interest! I have to ask, can your end effector pick up from the floor? human player? And do you hold the ringers vertically (parallel with the spider foot) or rotate them to a more horizontal position?
Can't wait to see you guys this weekend. Maybe we'll have the pleasure of playing with you!
Frenchie
05-03-2007, 22:06
looks really heavy
as always, we carried out an ambitious design and, strong from our previous experiences, we knew weight would be a problem from day one. Early estimates of our robot during the design phase went over 170 lbs. From there, weight was at the center of everything we did. We currently weight around 115 lbs but went as far as using different aluminum alloys on certain part of the robot to reach this figure.
Francois.
Don Wright
05-03-2007, 22:09
Yes, we can pick up from the floor and from the back wall... The ringers are held mostly horizontal...
Yes...it would be nice to play with the Killer Bees... I don't think we have since I've been on 469...
Looking forward to this weekend as well!!
shamuwong
05-03-2007, 23:56
There should be a camera and a working autonomous.
Indeed, weight was a great concern. Everything on the robot was made as light as possible, such as the gripper, which weighs less than 2 pounds, and the elevator motor mount, which was made of stamped 1/16th aluminum. If we were to somehow be overweight, there's pretty much no more places to drill holes without making our robot a crumple zone.
To be fair, I credit some of the ideas to other great teams who have been able to shove a ridiculous amount of features on a 120lb robot. I had 33's short-lived stamped-steel swerve drive modules from 2005 in mind when I worked on the motor mount.
Wait until you see it move. It'll make the weight seem even more impressive.
http://www.chiefdelphi.com/media/img/7db/7db1b1a1473eedb820973d0f78c65545_m.jpg
http://www.chiefdelphi.com/media/img/b65/b656c39aaec6af278c201a2f6e4e066e_m.jpg
Don,
The similarities are eerie. Knowing that we're on the same page as 469 makes me feel really good about things.
Don Wright
06-03-2007, 06:35
Karthik... I feel the same way... See you in two days...
Jimmy Holmes
06-03-2007, 12:29
hmmmm, looks very interesting
http://www.chiefdelphi.com/media/photos/27145
BRosser314
06-03-2007, 13:07
hmmmm, looks very interesting
http://www.chiefdelphi.com/media/photos/27145
Long Ramp JImmy, does it fit in a 5 foot or the 4 foot class, and whats the area of the complete ramp?
hmmmm, looks very interesting
http://www.chiefdelphi.com/media/photos/27145
All the cool kids are doing it! Can't wait to see it in person at Detroit.
While the metal grating is ideal for traction-wheeled teams, will your ramp provide any provisions for improving the chances of omni-wheeled teams at getting up?
I can't tell from the picture, but the section of the ramp that deploys from the rear one piece, or does it have a gap in the middle?
Is the device sticking out of the ramp at the rear just to ensure that your ramp doesn't become a "traction device", or does it raise the whole ramp to 12"?
Can you load tubes off the ground, or just the wall?
Is there a camera that I'm missing, is it coming later, or are you guys not using it?
What motors are used where, and are you using DeWalt transmissions again?
And of course, the perennial 469 question, HOW DID THAT MAKE WEIGHT!?! ;)
Sorry for the tons of questions, but 469 is really one of the more inspiring bots every year, and I'm dying to learn more about Cornelius. Good luck, I'm sure you will be a force to be reckoned with at GLR.
Hope you can pull off the ramp-ringer combo, nobody really has yet.
The rear ramp deploys as a whole piece. The cutout that you can see in the picture is just there in order to give the arm a spot to fold into. We have also had several discussions about traction material for the ramp but it is a low priority for us at this point.
The devices on the ramp are in fact for lifting it to twelve or so inches. They are, however, not complete as pictured.
The gripper itself, as I think Don mentioned, can grab tubes from the floor, the wall, and, theoretically at least, from the HP over the driver station wall. The mast rotates to make this possible.
The camera should be along shortly. We actually didn't have any time to work on it due to more... pressing, programming issues. Our plan is to still use it at least for auto.
We are again using 4 dewalt transmissions on the drive and plan to servo shift them again this year.
Weight wise, we used as thin and light material as possible everywhere. There are almost no pieces on the robot thicker than 1/16th of an inch. Even parts that needed thicker walls to support holes, like on the gripper, are only 1/8th thick around the hole and milled down to 1/16th everywhere else. The round tube, of course, is even thinner. It really was a situation where we thought about weight in everything we did.
-dtk
btw, if any of this turns out to be a "secret" don't tell them it was me who told you ;) .
BRosser314
06-03-2007, 16:55
btw, if any of this turns out to be a "secret" don't tell them it was me who told you ;) .
keep it secret
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