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-   -   pic: Omni Robot (http://www.chiefdelphi.com/forums/showthread.php?t=67710)

ajlapp 21-05-2008 08:22

Re: pic: Omni Robot
 
you have one too many wheels.......;)

but it definitely looks cool.

Team 857 Kiwi Bot

Foster 21-05-2008 11:20

Re: pic: Omni Robot
 
Quote:

That said, lukevanoort has a good point, when using the HB-25s using some 30A breakers is a very good idea to protect your investment. Remember the breakers for the Victors, too, I'd say.
Breakers are always good, but based on the picture the overall stall/current load should be pretty light. The weight of the proposed robot should be low.

Quote:

Trust me, it is really hard to drive, especially if you have no way of stopping the wheels.
I'd put the braking jumper switch on the Victors to the on position.

Alex.Norton 21-05-2008 14:54

Re: pic: Omni Robot
 
If your actually looking at this type of drive train for the season I would definitely suggest building this to do some software developments because while it may seem uncontrollable when you first build it they can be made very stable.

Quote:

Originally Posted by Laaba 80 (Post 749119)
I was the driver this year and we had an omni bot like your design. Trust me, it is really hard to drive, especially if you have no way of stopping the wheels.
Joey

Don't take the first spin on it and dismiss it right away. They are hard to get to be easy to drive but the process is rewarding and you will get a fast, fun bot to drive. It takes more than the breaking jumper on the victor.

JasJ002 22-05-2008 18:24

Re: pic: Omni Robot
 
very impressive.

Foster 23-05-2008 07:17

Re: pic: Omni Robot
 
I use code written by Arthur Dutra that was posted here as the basis for an omni control system. It works well out of the box. Can you post your code, since it sounds like you've put lots of work into it?

Alex.Norton 23-05-2008 18:43

Re: pic: Omni Robot
 
If your interested in looking at our code, PM me with your email and i'll send it to you. Keep in mind that we used the 2007 gyro to stabilize the robot and our machine had a tractor style suspension to keep all four wheels in contact with the ground at all times.

In terms of the suspension I can't entirely say if it absolutely necessary but we included one in all three omni bots that we built. We also used a gyro in all three bots and I can guarantee that it will be uncontrollable if you don't use one of the two, and very possibly both. All of our machine were very easy to drive once the correct constants for the control loop had been found.

GBIT 25-05-2008 15:43

Re: pic: Omni Robot
 
Quote:

Originally Posted by Foster (Post 749498)
I'd put the braking jumper switch on the Victors to the on position.


You took the words right out of my mouth.... :rolleyes:

EEliteDefender 25-05-2008 16:18

Re: pic: Omni Robot
 
team 1714 used a omni drive and it worked its was a fun system to drive good luck

T3_1565 29-05-2008 11:26

Re: pic: Omni Robot
 
yeah it looks really cool!! make sure you don't get thrown off the first few times driving it! it is hard to drive at first, but it is the most fun drivetrain I have ever driven!!! I love the lexan frame too! Whats the thickness of the lexan?? (I may of missed it if it were said somewhere.. sorry)


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