Go to Post Think like a criminal, and write the law to foil them! - Tristan Lall [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

 
 
 
Thread Tools Rate Thread Display Modes
Prev Previous Post   Next Post Next
  #9   Spotlight this post!  
Unread 22-03-2008, 23:51
StevenB StevenB is offline
is having FRC withdrawal symptoms.
AKA: Steven Bell
no team
Team Role: College Student
 
Join Date: May 2005
Rookie Year: 2005
Location: Stanford, CA
Posts: 416
StevenB has a reputation beyond reputeStevenB has a reputation beyond reputeStevenB has a reputation beyond reputeStevenB has a reputation beyond reputeStevenB has a reputation beyond reputeStevenB has a reputation beyond reputeStevenB has a reputation beyond reputeStevenB has a reputation beyond reputeStevenB has a reputation beyond reputeStevenB has a reputation beyond reputeStevenB has a reputation beyond repute
Re: Holonomic vs Mecanum Help!!

Note: When I refer to omni, I mean a robot which has 90 degree omniwheels, one on each side of a square (or rectangle). That square can be rotated from the robot frame, meaning you have a wheel diagonally in each corner.

Quote:
Originally Posted by daltore View Post
I think it would be a little simpler to program mechanum reliably as apposed to omni
Unless I'm misunderstanding you, not really. As said before:
Quote:
Originally Posted by Abwehr
The same exact code can be used with either configuration.
Quote:
Originally Posted by daltore View Post
From what I've seen in VEX, Mindstorms, and FRC, mechanum tends to lend itself to a slightly more powerful drive train, as omni holonomic has almost no resistance to movement, basically making it a hockey puck on wheels (note the incessant fishtailing of 2158's robot from 2007 FRC, where we only had 2 omniwheels, and were pushed around easily).
Power-wise, mecanum and 4-wheel omni are exactly the same. You get ~71% (sqrt(2)) power in one set of directions, and 50% in the directions 45 degrees from the first. Any differences are in the construction of the wheels.
__________________
Need a physics refresher? Want to know if that motor is big enough for your arm? A FIRST Encounter with Physics

2005-2007: Student | Team #1519, Mechanical Mayhem | Milford, NH
2008-2011: Mentor | Team #2359, RoboLobos | Edmond, OK
2014-??: Mentor | Looking for a team...
 


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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Mecanum Drive - Help Smoking_Gun Programming 22 04-12-2007 20:51
Holonomic/Omni vs Defense Alex Burman Technical Discussion 15 15-02-2006 20:35
Holonomic Drive Question Jeff Waegelin Technical Discussion 12 20-11-2005 21:23
Holonomic... Greg Perkins Technical Discussion 2 02-02-2005 11:59
holonomic drives Max Lobovsky Technical Discussion 5 10-03-2004 21:31


All times are GMT -5. The time now is 19:56.

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