Chief Delphi

Chief Delphi (http://www.chiefdelphi.com/forums/index.php)
-   General Forum (http://www.chiefdelphi.com/forums/forumdisplay.php?f=16)
-   -   Examples of wide-based robots using traction and omni wheels (http://www.chiefdelphi.com/forums/showthread.php?t=101665)

Hawiian Cadder 02-02-2012 03:02

Re: Examples of wide-based robots using traction and omni wheels
 
Our 2012 robot was 6wd tank with no drop center and omni wheel corners, our 2008 was 2 omni, 2 pneumatic, and our 2009 was 4wd. I can say that of all of these the omni corner robot handled the best. The "shopping cart" effect that occurs with any type of asymmetric wheel layout causes drivability to suffer greatly. One Thing I might suggest is to file the kit wheels into a rounded profile, they seem to slide sideways better that way.

Andrew Lawrence 02-02-2012 08:57

Re: Examples of wide-based robots using traction and omni wheels
 
Quote:

Originally Posted by Hawiian Cadder (Post 1118313)
Our 2012 robot was 6wd tank with no drop center and omni wheel corners, our 2008 was 2 omni, 2 pneumatic, and our 2009 was 4wd. I can say that of all of these the omni corner robot handled the best. The "shopping cart" effect that occurs with any type of asymmetric wheel layout causes drivability to suffer greatly. One Thing I might suggest is to file the kit wheels into a rounded profile, they seem to slide sideways better that way.

Nice to know what your 2012 bot will look like now! You probably meant 2011, though. :) Do you know the spacing of the wheels on your 2011 6wd tank? And what size wheels did you use?

Mr. Rogers 02-02-2012 09:07

Re: Examples of wide-based robots using traction and omni wheels
 
Just remember, you will be easy to push with only two wheels providing traction. Consider making your traction wheels wider. (IFI 2'' wheels)
http://www.vexrobotics.com/ifi-wheel.html

Andrew Lawrence 02-02-2012 09:12

Re: Examples of wide-based robots using traction and omni wheels
 
Quote:

Originally Posted by Mr. Rogers (Post 1118373)
Just remember, you will be easy to push with only two wheels providing traction. Consider making your traction wheels wider. (IFI 2'' wheels)
http://www.vexrobotics.com/ifi-wheel.html

1) What exactly will IFI wheels do for us?

2) Our strategies are to be fast, maneuverable, and for the most part stay away from opponents/areas where we get penalized. However, we do have a strong defensive strategy which will be useful no matter the opponents we go against.

jwfoss 02-02-2012 09:15

Re: Examples of wide-based robots using traction and omni wheels
 
Back in 2006 FRC322 had a wide chassis and the traction/omni combo you are looking for, they seemed to move on the field rather quickly:

http://www.chiefdelphi.com/media/photos/23148

http://www.thebluealliance.com/team/322/2006

IKE 02-02-2012 09:18

Re: Examples of wide-based robots using traction and omni wheels
 
In 2010, 2619 was a really great wide bot that did not get the attention it deserved. Here you can see t participating in a 12 to 13 match that was really a nail biter.
http://www.thebluealliance.com/match/2010gl_qm45

They are the blue wide bot that starts deep and works their way forward.

That year they used KOP (gray rubber) in the front, and lunacy wheels in the back (if I remember right). This robot was a lot scrappier than its relatively low traction system would have you believe.


All times are GMT -5. The time now is 10:24.

Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi