View Single Post
  #15   Spotlight this post!  
Unread 26-11-2014, 17:56
TikiTech's Avatar
TikiTech TikiTech is offline
Mr. H
FRC #3880 (Tiki Techs)
Team Role: Mentor
 
Join Date: Feb 2013
Rookie Year: 2011
Location: Kailua-Kona, Hawaii
Posts: 252
TikiTech is just really niceTikiTech is just really niceTikiTech is just really niceTikiTech is just really niceTikiTech is just really nice
Re: 2073 is looking into WCD, feedback requested

Quote:
Originally Posted by chrisfl View Post
Do you have the center wheel dropped lower? If so, how much lower? I think I have seen some teams that did not drop their center wheel, how much of a difference is this? Is it beneficial or not? For those that did not drop the center wheel, would you recommend it?
If there is no drop center you will run into scrubbing (robot hopping from the outer wheels having too much traction to allow smooth turning). I have seen the use of Omni wheels to resolve this on a non dropped WCD.

1/8" drop is the norm for the center wheels. If you keep the weight centered well enough, spinning around is very easy! As mentioned, even when weight is not centered, on a drop center drive the robot will rock to one end and essentially be 4wd with a short wheelbase, which will turn much easier with less scrubbing than 6wd non drop..

Yeah robot doughnuts!

Aloha!
__________________
Team 3880 - "Tiki Techs" "Mr. H" - Tiki Technologies Coach / Mentor
Kealakehe High School Robotics - Kailua-Kona, Hawaii
__________________________________________________ _____________________________
2016 Hopper Division | Orlando Regional Engineering Inspiration Award | Hawaii Regional Chairman's Award & Finalist & Woodie Flowers Finalist
2015 Carson Division | Silicon Valley Regional Engineering Inspiration Award | HI Regional Regional Winners & Engineering Inspiration & Deans List Finalist
2014 Newton Division | Hawaii Regional Engineering Inspiration Award & Deans List Finalist
2013 Newton Division | Inland Empire Regional Regional Chairman's & Creativity Award | Los Angles Regional Engineering Inspiration Award | | HI Regional
2012 Curie Division | Hawaii Regional Engineering Inspiration Award
2011 Newton Division | Hawaii Regional Regional Winners & Industrial Design Award
.
__________________________________________________ _____________________________