View Single Post
  #1   Spotlight this post!  
Unread 17-06-2014, 20:55
s_forbes's Avatar
s_forbes s_forbes is online now
anonymous internet person
FRC #0842 (Falcon Robotics)
Team Role: Engineer
 
Join Date: Jan 2006
Rookie Year: 2006
Location: Phoenix, AZ
Posts: 1,129
s_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond reputes_forbes has a reputation beyond repute
Re: pic: Plywood Butterfly Drive Render

Looks good, I want to see the real life prototype!

Quote:
Originally Posted by AllenGregoryIV View Post
I would highly suggest you have the traction wheels on the outside and the omni wheels on the inside. We did it like your current setup this year, against the advice of teams like 148, and we regret it. When you shift into traction and want to push you'll tip slightly and end up partially on your omni wheels.
I expect this to depend a lot on the wheel base of the robot while in traction mode (distance from center of front traction wheel to center of back traction wheel). It probably depends on the torque the piston provides on the wheel modules as well. What was the wheel base for your design? Did the tipping result in any lifting of the opposing robot? Curious on your results.... for science.

My biggest pet peeve of this type of drivetrain approach will always be that the two CIMs on the front don't contribute much power in a pushing situation. If you are geared to be traction limited, I don't think this is an issue.
Reply With Quote