Omni designs

[edomus]

I am looking for designs for omni-wheels.

-Is anyone thinging of using them this year?
-What materials would be ideal?
-any pictures of past bots?
-


I have seen 45's "trick wheels" so I am looking for other designs with the same general intent.

[Pteryxx]

Well, a bit of ChiefDelphi forum searching (hint hint ; ) turned up this:

Team 857's "kiwi" drive, with pictures and drive test video:
http://stuweb.ee.mtu.edu/~alkrajew/FIRST/

There's also an omniwheel entry in the FIRST CAD library:
http://www.firstcadlibrary.com/pages/mechanical%20parts.asp

And Team 122 has made omniwheels for the 2001 game:
http://www.chiefdelphi.com/forums/showpost.php?p=11800&postcount=12

and so did Team 111 for the 2002 game: http://www.wildstang.org/

Here is a post from Patrick of Team 639 where he lays out his omniwheel design:
http://www.chiefdelphi.com/forums/showpost.php?p=188185&postcount=12
and a picture of it: http://www.chiefdelphi.com/forums/attachment.php?attachmentid=1307


And, from the combat robot community (Gasp!) :

"Y-Chromosome" by Team Radicus, with homebuilt omniwheels, and extensive build reports and video:
http://www.teamradicus.com/bots/yc1/

Note that Tony drives YC with hobby radio gear, by sheer hand-eye coordination. Now, for a combat robot with a spinning weapon that covers 300 of its 360 degrees of approach, this is not a big problem, but for FIRST precise maneuvering some fancy programming would be needed.

There is also a 340-pound omniwheel combat robot, Alcoholic Stepfather. He uses an IFI robot controller, a gyro, and a custom program with a feedback loop to make him driveable. Here are a few of my pictures:
http://www.uiproductions.com/pteryxx/view.asp?cat=LVSF_9Nov02&pic=3141-AStep_vs_Toro
http://www.uiproductions.com/pteryxx/sc3may03/satmay3/pages/4058-Omnihalf.html

Here is a store-bought omniwheel, used as a caster under the nose of a 220-pound combat wedge:
http://www.mcmanis.com/chuck/Robotics/images/bright-omni.jpg

And here's a company that makes and sells such wheels:
http://www.omniwheel.com/omniwheel/omniwheel.htm

Hope this is of some use - Piece, Pteryxx (Team 1301 and Western Allied Robotics)

[edomus]

Well, a bit of ChiefDelphi forum searching (hint hint ; ) turned up this:

Team 857's "kiwi" drive, with pictures and drive test video:
http://stuweb.ee.mtu.edu/~alkrajew/FIRST/

There's also an omniwheel entry in the FIRST CAD library:
http://www.firstcadlibrary.com/pages/mechanical%20parts.asp

And Team 122 has made omniwheels for the 2001 game:
http://www.chiefdelphi.com/forums/showpost.php?p=11800&postcount=12

and so did Team 111 for the 2002 game: http://www.wildstang.org/

Here is a post from Patrick of Team 639 where he lays out his omniwheel design:
http://www.chiefdelphi.com/forums/showpost.php?p=188185&postcount=12
and a picture of it: http://www.chiefdelphi.com/forums/attachment.php?attachmentid=1307


And, from the combat robot community (Gasp!) :

"Y-Chromosome" by Team Radicus, with homebuilt omniwheels, and extensive build reports and video:
http://www.teamradicus.com/bots/yc1/

Note that Tony drives YC with hobby radio gear, by sheer hand-eye coordination. Now, for a combat robot with a spinning weapon that covers 300 of its 360 degrees of approach, this is not a big problem, but for FIRST precise maneuvering some fancy programming would be needed.

There is also a 340-pound omniwheel combat robot, Alcoholic Stepfather. He uses an IFI robot controller, a gyro, and a custom program with a feedback loop to make him driveable. Here are a few of my pictures:
http://www.uiproductions.com/pteryxx/view.asp?cat=LVSF_9Nov02&pic=3141-AStep_vs_Toro
http://www.uiproductions.com/pteryxx/sc3may03/satmay3/pages/4058-Omnihalf.html

Here is a store-bought omniwheel, used as a caster under the nose of a 220-pound combat wedge:
http://www.mcmanis.com/chuck/Robotics/images/bright-omni.jpg

And here's a company that makes and sells such wheels:
http://www.omniwheel.com/omniwheel/omniwheel.htm

Hope this is of some use - Piece, Pteryxx (Team 1301 and Western Allied Robotics)


Thanks alot. I was able to find some of these by doing a search but you were able to point out a few that I missed. This helps a lot!