Go to Post Don't worry about where you will be. Just consider youself lucky for being where you have been. - sanddrag [more]
Home
Go Back   Chief Delphi > Technical > Technical Discussion
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Closed Thread
Thread Tools Rate Thread Display Modes
  #31   Spotlight this post!  
Unread 23-04-2013, 09:35
faust1706's Avatar
faust1706 faust1706 is offline
Registered User
FRC #1706 (Ratchet Rockers)
Team Role: College Student
 
Join Date: Apr 2012
Rookie Year: 2011
Location: St Louis
Posts: 498
faust1706 is infamous around these partsfaust1706 is infamous around these parts
Re: Problems with Vex Pro mecanum wheels

In logomotion, we also used machanuum wheels, and they strafed much better. An issue we are occuring is our gyro drifting this year too though.
__________________
"You're a gentleman," they used to say to him. "You shouldn't have gone murdering people with a hatchet; that's no occupation for a gentleman."
  #32   Spotlight this post!  
Unread 23-04-2013, 09:57
Ether's Avatar
Ether Ether is offline
systems engineer (retired)
no team
 
Join Date: Nov 2009
Rookie Year: 1969
Location: US
Posts: 8,136
Ether has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond repute
Re: Problems with Vex Pro mecanum wheels

Quote:
Originally Posted by BigJ View Post
Also, your robot being 28"x28" doesn't necessarily mean your wheelbase is a square (but it may very well be or "close enough").
Mecanum does not require that wheelbase and trackwidth be equal.


  #33   Spotlight this post!  
Unread 23-04-2013, 11:04
pfreivald's Avatar
pfreivald pfreivald is online now
Registered User
AKA: Patrick Freivald
FRC #1551 (The Grapes of Wrath)
Team Role: Mentor
 
Join Date: Jan 2007
Rookie Year: 2001
Location: Naples, NY
Posts: 2,306
pfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond reputepfreivald has a reputation beyond repute
Re: Problems with Vex Pro mecanum wheels

Quote:
Originally Posted by Ether View Post
Mecanum does not require that wheelbase and trackwidth be equal.


This is the first year ours was even close, and from what we could tell it made no difference whatsoever from a driver standpoint.
__________________
Patrick Freivald -- Mentor
Team 1551
"The Grapes of Wrath"
Bausch & Lomb, PTC Corporation, and Naples High School

I write books, too!
  #34   Spotlight this post!  
Unread 23-04-2013, 12:10
Jeffy's Avatar
Jeffy Jeffy is offline
Retired, for now
AKA: Jeff Gier
FRC #2410 (Metal Mustang Robotics) #159 (Alpine Robotics)
Team Role: College Student
 
Join Date: Mar 2008
Rookie Year: 2008
Location: Fort Collins
Posts: 523
Jeffy has a brilliant futureJeffy has a brilliant futureJeffy has a brilliant futureJeffy has a brilliant futureJeffy has a brilliant futureJeffy has a brilliant futureJeffy has a brilliant futureJeffy has a brilliant futureJeffy has a brilliant futureJeffy has a brilliant futureJeffy has a brilliant future
Re: Problems with Vex Pro mecanum wheels

A drop of oil on each roller's axle can help a lot.

Also, during use the rollers can develop sharp edges on either side and sanding those down will keep the rollers from digging into the carpet when strafing.

FYI: I speak from experience with AM mecs, not vexpro.
__________________
Metal Mustang Robotics 2410 (2008-2011)
2008 STL Rookie All-Star
2010 GKC Finalists
2010 OKC Champions
Alpine Robotics 159 (2012-)
2012 CO Finalists

700 miles from home, 2 miles from FRC. Life is good.
Closed Thread


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 14:11.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi