Go to Post A good leader will step down so the right people are in the leadership positions, regardless of age. - Phoenix Spud [more]
Home
Go Back   Chief Delphi > Competition > Rules/Strategy
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
  #1   Spotlight this post!  
Unread 08-01-2003, 19:57
srjjs's Avatar
srjjs srjjs is offline
Slightly Rehabilitated
AKA: Larry Wang
#0840 (Aragon Robotics Team)
Team Role: Alumni
 
Join Date: Jan 2003
Rookie Year: 2002
Location: UCB, Berkeley
Posts: 485
srjjs will become famous soon enough
Send a message via AIM to srjjs
Logbot

Would a bot like this do well?
If the picture is not clear, it's a small bot with two wheels larger than the bot, one on each end.
It would roll around and push boxes. Any comments?
Attached Thumbnails
Click image for larger version

Name:	logbot.gif
Views:	193
Size:	2.1 KB
ID:	893  
  #2   Spotlight this post!  
Unread 08-01-2003, 20:00
sanddrag sanddrag is offline
On to my 16th year in FRC
FRC #0696 (Circuit Breakers)
Team Role: Teacher
 
Join Date: Jul 2002
Rookie Year: 2002
Location: Glendale, CA
Posts: 8,510
sanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond reputesanddrag has a reputation beyond repute
How would it balance? Like a Segway? If so, have fun programming.
__________________
Teacher/Engineer/Machinist - Team 696 Circuit Breakers, 2011 - Present
Mentor/Engineer/Machinist, Team 968 RAWC, 2007-2010
Technical Mentor, Team 696 Circuit Breakers, 2005-2007
Student Mechanical Leader and Driver, Team 696 Circuit Breakers, 2002-2004
  #3   Spotlight this post!  
Unread 08-01-2003, 20:13
srjjs's Avatar
srjjs srjjs is offline
Slightly Rehabilitated
AKA: Larry Wang
#0840 (Aragon Robotics Team)
Team Role: Alumni
 
Join Date: Jan 2003
Rookie Year: 2002
Location: UCB, Berkeley
Posts: 485
srjjs will become famous soon enough
Send a message via AIM to srjjs
It doesn't need to balance, as it would not need to be "upright." It has no top, bottom, back, or front.
There is only clockwise and counterclockwise rotation of the wheels to program.
  #4   Spotlight this post!  
Unread 08-01-2003, 20:23
pauluffel's Avatar
pauluffel pauluffel is offline
Registered User
AKA: Paul Luffel
FRC #1127 (Lotus Robotics)
Team Role: Mentor
 
Join Date: May 2002
Rookie Year: 2002
Location: Alpharetta, GA
Posts: 156
pauluffel is a jewel in the roughpauluffel is a jewel in the roughpauluffel is a jewel in the rough
Send a message via AIM to pauluffel
If there was no "up" alignment for the robot, it seems that the motors would just spin the core, rather than spin the wheels. If you did give it a gravitational alignment and ran into something with your wheels (say a crate,) they would get stuck on the object and again the core would spin and the robot would not move. If you did have some way to brace it against the ground or it was very heavy so that the motors would have something to push against when powering the wheels, it seems like it might be a nice, simple, compact design.
  #5   Spotlight this post!  
Unread 10-01-2003, 14:37
Unsung FIRST Hero
JVN JVN is offline
@JohnVNeun
AKA: John Vielkind-Neun
FRC #0148 (Robowranglers)
Team Role: Engineer
 
Join Date: May 2001
Rookie Year: 2000
Location: Greenville, Tx
Posts: 3,159
JVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond repute
I think the ovular wheel design will be interesting.
I'm curious to see how it works in competition.



Good Luck!
__________________
In the interest of full disclosure: I work for VEX Robotics a subsidiary of Innovation First International (IFI) Crown Supplier & Proud Supporter of FIRST
  #6   Spotlight this post!  
Unread 10-01-2003, 14:47
Noah's Avatar
Noah Noah is offline
Code Monkey
#0861 (The Gondobots)
Team Role: Programmer
 
Join Date: Apr 2002
Location: Venice, California
Posts: 139
Noah has a spectacular aura aboutNoah has a spectacular aura about
Send a message via AIM to Noah
I see a few problems that you could probably work around in that design. I'm not sure how you'd do it, but I know it can be done...
1. A two wheeled robot is inherently unstable. Remember learning to ride a bike?

2. With wheels that large, why keep the bot that small? stability is the only advantage I can think of, but it seems that if the robot is smaller than the wheels your going to have a hard time stacking boxes...

3. The wheels might get in the way of things like box-grabbers if they are mounted forward backward as in your diagram.

4. Weight on the bot would have to be distributed reaally well...

5. I think the wheels would have to be one on each side, not front and back, to allow you to turn... this would also clear the front center of your robot for disadvantage # 3 in this post...
__________________
"It's broken? NOOAAHH!!! This is your doing, isn't it!"

"We can fix it in the software!"
"It's a BROKEN GEAR!"
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 07:28.

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