Hi Guy, Erev tov =]
There are actually a few different ways of driving to 4 diferent directions.
1) Omni Wheels:
explanation:
http://www.chiefdelphi.com/media/papers/1836
picture:
http://www.chiefdelphi.com/media/photos/26368
order at Andy Mark.
2) Holonomic drivetrain:
pic:
http://www.chiefdelphi.com/media/photos/25310
info:
http://www.chiefdelphi.com/media/papers/1836
order at AM
3) crab drive:
pic:
http://www.chiefdelphi.com/media/photos/28618
info:explanation:
http://www.chiefdelphi.com/media/papers/1836
those once are all custom made, fun fun fun!
If you want a team from Israel who used that stuff, you should probably contact the Neat-Team (#1943). They used a 2/4 omniwheels system in Rack and Roll. In addition, you should ask the same question at
http://firstaid.forumcircle.com . as you might get there more answers from Israeli teams.
PS, what team are you from?
__________________
My FRC record: 10 Years,FTA (2008-9), 3 Teams(1947,2669,3211).3 RCA, 1 Championship EI(2016), 1 Divisional finalist (2016), 1 Regional winner.
Israeli 2016 Volunteer of the year.