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-   -   pic: 2010 Los Angeles Regional Champions (http://www.chiefdelphi.com/forums/showthread.php?t=84838)

Joe Ross 30-03-2010 22:03

pic: 2010 Los Angeles Regional Champions
 

Mark Sheridan 30-03-2010 22:15

Re: pic: 2010 Los Angeles Regional Champions
 
Congratulations on the win.

I loved watching the videos of the LA finals. It was some of the most intense and nail biting matches this season. I noticed that all the robots on this alliance have uncommon drivetrains. 330 has 4 wheel drive with omniwheels and two massive pneumatic wheels. 1452 appears to have a 6 omniwheel drive. Of course 1717 has its lovely swerve drive.

Does anyone have any info on 1717 drivetrain? By the way, 1717's hanger (I guess its actually a lifter) is seriously cool.

Andy S 31-03-2010 00:19

Re: pic: 2010 Los Angeles Regional Champions
 
Can I answer any questions you have regarding our robot this year?

Mark Sheridan 31-03-2010 01:37

Re: pic: 2010 Los Angeles Regional Champions
 
I was very impressed by your robot last year. Was there any improvements to the swerve this year? Also, I was curious if each wheel is independently steered and what options you have to control the drivetrain?

I hope your team come up for CalGames, so I can get a closer look (that goes to 330 and 1452 too).

=Martin=Taylor= 31-03-2010 01:59

Re: pic: 2010 Los Angeles Regional Champions
 
Quote:

Originally Posted by Mark Sheridan (Post 946133)
I hope your team come up for CalGames, so I can get a closer look (that goes to 330 and 1452 too).

CalGames is in good need of some SoCal :cool:

Chris is me 31-03-2010 02:27

Re: pic: 2010 Los Angeles Regional Champions
 
Quote:

Originally Posted by Andy S (Post 946114)
Can I answer any questions you have regarding our robot this year?

Do you have an extra robot I can borrow? :)

kbonsell 31-03-2010 02:36

Re: pic: 2010 Los Angeles Regional Champions
 
Quote:

Originally Posted by Mark Sheridan (Post 946133)
Also, I was curious if each wheel is independently steered and what options you have to control the drivetrain?

The right front and left back wheels are connected with timing belts for steering, as are the left front and right back wheels. This allows our robot to turn and spin rather easily. I hope this picture helps. :)

waialua359 31-03-2010 03:18

Re: pic: 2010 Los Angeles Regional Champions
 
So are you folks still tweaking an end game that lifts another robot?:rolleyes:

Akash Rastogi 31-03-2010 04:10

Re: pic: 2010 Los Angeles Regional Champions
 
Quote:

Originally Posted by kbonsell (Post 946143)
The right front and left back wheels are connected with timing belts for steering, as are the left front and right back wheels. This allows our robot to turn and spin rather easily. I hope this picture helps. :)

Wow...


that is beautiful. Are there any more pictures up somewhere of your machine?

Andy S 31-03-2010 14:10

Re: pic: 2010 Los Angeles Regional Champions
 
That was the original plan, but after San Diego we thought lightening the lifter and lowering our CG was more important.

kbonsell 02-04-2010 16:37

Re: pic: 2010 Los Angeles Regional Champions
 
Quote:

Originally Posted by Akash Rastogi (Post 946153)
Are there any more pictures up somewhere of your machine?

Here is a general shot of our robot. Would you like to see a specific part or our robot performing a certain action?

Jamie Kalb 02-04-2010 18:31

Re: pic: 2010 Los Angeles Regional Champions
 
Quote:

Originally Posted by kbonsell (Post 947172)
Would you like to see a specific part or our robot performing a certain action?

Yeah! Do you have any close-ups of the lifter? And how are the drive wheels powered? Coaxial or motor-in-module?

What an amazing robot.

kbonsell 02-04-2010 21:15

Re: pic: 2010 Los Angeles Regional Champions
 
Quote:

Originally Posted by Jamie Kalb (Post 947201)
Yeah! Do you have any close-ups of the lifter? And how are the drive wheels powered? Coaxial or motor-in-module?

The wheels are powered coaxially using timing belts.
Here is a better view of our lifter:

Mark Sheridan 04-04-2010 18:50

Re: pic: 2010 Los Angeles Regional Champions
 
Quote:

Originally Posted by kbonsell (Post 947172)
Here is a general shot of our robot. Would you like to see a specific part or our robot performing a certain action?

Thanks for the pictures so far. The webcast can only show so much detail. If its not to much trouble, I would love to see a clear shot of the drivetrain with the motors. Also, could you post a picture of your kicker/ball magnet and explain how they work? Lastly, is that a gas shock in your lifter and how do you release it?

For 1452, if there is a picture of the underside of your drivetrain, I would love to see it. I love robots with unique drivetrains.

kbonsell 04-04-2010 21:43

Re: pic: 2010 Los Angeles Regional Champions
 
Quote:

Originally Posted by Mark Sheridan (Post 947934)
If its not to much trouble, I would love to see a clear shot of the drivetrain with the motors. Also, could you post a picture of your kicker/ball magnet and explain how they work? Lastly, is that a gas shock in your lifter and how do you release it?

CIMs used for power, Fisher-Price motors used for steering. The belts that connect the modules are inside of the chassis and on the same plane as the electrical board.



Our ball collector consists of a metal roller and centering paddles covered in Sorbothane, which has a coefficient of friction of about 15. The roller is powered by a Mabuchi motor and the paddles are powered by a window motor. The paddles center the ball and grab on to it which allows the robot to spin and move while still maintaining possession of the ball.



The kicker has surgical tubing attached to it and is pulled back using a dog-eared winch. When the kicker is pulled back to the desired angle, which is measured with a potentiometer, the winch is released via pneumatic piston.





Yes, our lifter has a compressed gas spring on it. We release it using a lever with a pneumatic piston on one end and the gas spring on the other. I unfortunately am unable to find a decent close up of the lever. Sorry :(


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