Re: pic: Cornelius VIII - FRC469
 

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!

Re: pic: Cornelius VIII - FRC469
 

looks really heavy

Re: pic: Cornelius VIII - FRC469
 

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.

Re: pic: Cornelius VIII - FRC469
 

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!!

Re: pic: Cornelius VIII - FRC469
 

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.

Re: pic: Cornelius VIII - FRC469
 

Don,

The similarities are eerie. Knowing that we're on the same page as 469 makes me feel really good about things.

Re: pic: Cornelius VIII - FRC469
 

Karthik... I feel the same way... See you in two days...

Re: pic: Cornelius VIII - FRC469
 

hmmmm, looks very interesting

http://www.chiefdelphi.com/media/photos/27145

Re: pic: Cornelius VIII - FRC469
 

Long Ramp JImmy, does it fit in a 5 foot or the 4 foot class, and whats the area of the complete ramp?

Re: pic: Cornelius VIII - FRC469
 

All the cool kids are doing it! Can't wait to see it in person at Detroit.


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 ;) .

Re: pic: Cornelius VIII - FRC469
 

keep it secret