View Single Post
  #3   Spotlight this post!  
Unread 26-02-2012, 22:48
Unsung FIRST Hero Woodie Flowers Award
Chris Fultz Chris Fultz is offline
My Other Car is a 500 HP Turbine
FRC #0234 (Cyber Blue)
Team Role: Engineer
 
Join Date: Jan 2002
Rookie Year: 1942
Location: Indianapolis, IN
Posts: 2,837
Chris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond reputeChris Fultz has a reputation beyond repute
Re: How much Bridge Space does your robot need?

Quote:
=Swampdude;1135220]Good points made. We are currently just under 100lbs, and around 123 with bumpers and battery. So we figured a nominal 145 lb bot needed to have it's CG less than 19" from the other end of the bridge. Which should be easy and should only require a driver to move as far as they can out to the end. I'm hoping and in theory this should be quick and easy. If there were still a weight issue there's a few pounds to play with but I think we're good as long as we balance with 115+ lb bots.
Can you share your math and some of the details?

I am assuming your robot is 123 pounds and all of the weight is at the end of the bridge - 44" from the center of the bridge. (is this correct?)

If so, then the center of a 145 pound robot needs to be at 37" from the center of the bridge, so only 7" from the edge.

I am taking 123 * 44 = 145 * x.
solve for x = 37.
__________________
Chris Fultz
Cyber Blue - Team 234
2016 IRI Planning Committee
2016 IndyRAGE Planning Committee
2010 - Woodie Flowers Award - Championship
Reply With Quote