22-02-2007 18:01

Re: pic: 587's 2007 robot, OCCAM VII: Deadline

Wow. Looks like a beast of an arm. How tall does the arm extend to? And did you have any issues with a high center of gravity?

Looks like quite a beast... I'm impressed.

22-02-2007 18:01

JimHull

Re: pic: 587's 2007 robot, OCCAM VII: Deadline

That looks heavy. What is the weight of your robot? Beautiful machine though.

22-02-2007 18:26

lukevanoort

Re: pic: 587's 2007 robot, OCCAM VII: Deadline

Thanks, in the past we've had little luck with arms, so we're quite proud of this one. It extends to ~9 ft. The centre of gravity is not too bad, overall this robot is quite short (several inches under 4 ft), and most of the motors and the battery are mounted pretty low, plus we'll have bumpers mounted to further lower the COG and act as wheelie bars.

~115 lbs. The arm without motors is actually about 20-25 lbs, the reason it looks so much heavier is that it's made out of four pieces of aluminum angle and one square tube, and in this picture the angle has it's long side facing the camera. Thanks for the comment on its looks, but if you saw it from the other side, you'd probably think differently. 13 PWM cables from the arm/turret sensors + 4 from the camera + 1 for the pressure switch + 6 for Victors + 2 for spikes + 1 for the gyro in a tight amount of space leads to a really nasty looking electrical board. (We'll try to fix that at VCU, we don't want our insectors pulling out their hair trying to see what is going on in there)

22-02-2007 18:34

sdcantrell56

Re: pic: 587's 2007 robot, OCCAM VII: Deadline

What are you using that tape measure for? I ask because we were going to use it for a certain task also.

22-02-2007 18:37

lukevanoort

Re: pic: 587's 2007 robot, OCCAM VII: Deadline

It has been modified to accept a potentiometer to measure lift height.

22-02-2007 18:39

sdcantrell56

Re: pic: 587's 2007 robot, OCCAM VII: Deadline

That is exactly what we were going to use it for.

22-02-2007 18:40

meatmanek

Re: pic: 587's 2007 robot, OCCAM VII: Deadline

Very nice. One question though:

Why bother making a turret that turns everything but the drivetrain when you can just ... turn the drivetrain?

22-02-2007 19:00

lukevanoort

Re: pic: 587's 2007 robot, OCCAM VII: Deadline

The idea was that we would use a pair of cameras to aim the turret, drive near the rack, choose a height and press score. We couldn't squeeze the funds for a second camera, and didn't have enough debug time to make the vision come to fruition. (Actually, no debug time) We'll still try for autonomous scores with the camera, and maybe an ultrasonic sensor that we're thinking about mounting, but our operator control won't depend on it. A side benefit of the turret is that it makes it very easy to reach the floor since we can start with our arm stowed over the robot, then rotate into its playing position facing the front, so it only has to reach a very short distance to get to the floor.

PS: Can anyone identify all the 'bots this one pulls inspiration from. There are a total of 6 robots providing inspiration to at least one function, the most recent ones were from '05, the oldest from '01.

22-02-2007 19:53

sporno

Re: pic: 587's 2007 robot, OCCAM VII: Deadline

OMFG THAT IS SICK!!!!!!!!!!!!!!...... IDK ABOUT YOU , BUT IM SEEING ANOTHER 5-5-5 THIS YEAR..... ( 540,510,587)

22-02-2007 19:58

lukevanoort

Re: pic: 587's 2007 robot, OCCAM VII: Deadline

Thanks. Another 555 deal would be awesome, you guys are looking really, really good this year, and one can assume that 510 will have a nice robot. I guess we'll see in nine days eh?

22-02-2007 20:51

kevin.li.rit

Re: pic: 587's 2007 robot, OCCAM VII: Deadline

What kind of transmissions are those?

22-02-2007 20:55

Sgraff_SRHS06

Re: pic: 587's 2007 robot, OCCAM VII: Deadline

Are you sure you didn't steal this from Coach K's office containing secret plans to nuke Chapel Hill?

I'm loving the whole turret idea! Your robot is way too underrated! It's easily the most awesome bot I've seen so far.

22-02-2007 21:22

lukevanoort

Re: pic: 587's 2007 robot, OCCAM VII: Deadline

AndyMark single speeds.

Steal? No, no no, we designed the delivery system for the device. Just kidding, Duke actually is one of our sponsors though...

Thanks! Although I think some of the robots that have been popping up on the Chief could eat us for breakfast...

22-02-2007 21:55

Sgraff_SRHS06

Re: pic: 587's 2007 robot, OCCAM VII: Deadline

It's because all I've seen has been claws, claws, claws;;;;outside of the ThunderChickens and you and 1515. It's either your design or 1515's that could easily be a dominant robot.

23-02-2007 17:32

sporno

Re: pic: 587's 2007 robot, OCCAM VII: Deadline

that was soo tight last year ( i was human player ) remamber knocking 1086 and them just launching balls at the scoreboard .. and you know there was a picture of our alliance on VCU's website

24-02-2007 11:41

conacher

Re: pic: 587's 2007 robot, OCCAM VII: Deadline

WOW!!!!!!!! that is a good looking robot. good use of the pneumatics. i am surprised that it isn't over weight.