View Single Post
  #135   Spotlight this post!  
Unread 26-11-2012, 14:03
Siri's Avatar
Siri Siri is offline
Dare greatly
AKA: 1640 coach 2010-2014
FRC #2641 (PCCR; Refs & RIs)
Team Role: Coach
 
Join Date: Jan 2008
Rookie Year: 2007
Location: PA
Posts: 1,640
Siri has a reputation beyond reputeSiri has a reputation beyond reputeSiri has a reputation beyond reputeSiri has a reputation beyond reputeSiri has a reputation beyond reputeSiri has a reputation beyond reputeSiri has a reputation beyond reputeSiri has a reputation beyond reputeSiri has a reputation beyond reputeSiri has a reputation beyond reputeSiri has a reputation beyond repute
Send a message via ICQ to Siri
Re: Be afraid... Be VERY Afraid

Quote:
Originally Posted by bhumudar View Post
The module its self is able to rotate 360 degrees to give the swerve effect.
What's the full weight of the unit (with swerve)? And what leads you to believe the ball system will be lighter than using wheel?

Quote:
Originally Posted by bhumudar View Post
You are correct in that the first place that you lose friction is the only one that matters, but since there are multiple contact points, each one adds to the total friction available. Lets suppose you see an incoming robot front the right of our robot, we would turn the wheels so that they face front to back (perpendicular to the incoming force).
Do you propose that the system will begin slipping between the ball and the rollers or between the ball and the floor? (Why?) I think Brandon and I are both stuck on how aligning the rollers increases this threshold vis a vis a system that doesn't use a frictional drive for steering (i.e. a belt, chain or gear swerve).

And listen to Jesse; you really want to talk to Aren.


Tom: secret's out. OP should probably edit the original post.
__________________

Last edited by Siri : 26-11-2012 at 14:09. Reason: read Jesse's post