OCCRA
Go to Post Who wants to see your robot get their butt handed to them? - Joe_Widen [more]
Home
Go Back   Chief Delphi > FIRST > General Forum
CD-Events   CD-Media   CD-Spy   FRC-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Reply
Thread Tools Rate Thread Display Modes
  #1   Spotlight this post!  
Unread 01-14-2006, 03:59 PM
Tom Bottiglieri Tom Bottiglieri is offline
Custom User Title
FRC #0254 (The Cheesy Poofs)
Team Role: Engineer
 
Join Date: Jan 2004
Rookie Year: 2003
Location: San Francisco, CA
Posts: 3,008
Tom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond reputeTom Bottiglieri has a reputation beyond repute
Send a message via AIM to Tom Bottiglieri
Traction Problems...

It's an easy fix, but I thought it was funny enough to post up here.

http://www.team195.com/video/kitbot.wmv

(Note: this only happens when slamming the right side motor only into reverse.)
__________________
2014 FRC Champions! : 254, 469, 2848, 74

Team 254 | San Jose, CA | Mentor (2010 - Present)
Team 125 | Boston, MA | College Student (2007 - 2011)
Team 195 | Southington, CT | Student (2002 - 2006)
Reply With Quote
  #2   Spotlight this post!  
Unread 01-14-2006, 04:23 PM
Jon K. Jon K. is offline
n.e.r.d #6
FRC #3780 (Robot Unicorns)
Team Role: Mentor
 
Join Date: May 2002
Rookie Year: 2002
Location: Vernon, CT
Posts: 1,336
Jon K. has a brilliant futureJon K. has a brilliant futureJon K. has a brilliant futureJon K. has a brilliant futureJon K. has a brilliant futureJon K. has a brilliant futureJon K. has a brilliant futureJon K. has a brilliant futureJon K. has a brilliant futureJon K. has a brilliant futureJon K. has a brilliant future
Re: Traction Problems...

Did you see those tiles just fly by??? I don't want to get into a pushing match with them!!! Nice vid Tom
__________________

#6
Reply With Quote
  #3   Spotlight this post!  
Unread 01-14-2006, 04:33 PM
wilshire's Avatar
wilshire wilshire is offline
OSNAP. a gear flew out of the robot
no team
Team Role: College Student
 
Join Date: Jan 2005
Rookie Year: 2004
Location: Lafayette, IN
Posts: 162
wilshire is just really nicewilshire is just really nicewilshire is just really nicewilshire is just really nice
Send a message via AIM to wilshire
Re: Traction Problems...

that chain going from the tranny to the wheel sprocket was so loose.
__________________
AIM: wilshire461

Purdue FIRST Teams
Team 461 -http://www.boilerinvasion.org/
Team 1646 - http://www.precisionguessworks.org/
Team 1747 - www.harrisonboilerrobotics.org
Reply With Quote
  #4   Spotlight this post!  
Unread 01-14-2006, 07:28 PM
Arkorobotics's Avatar
Arkorobotics Arkorobotics is offline
Robots!
AKA: Ara Kourchians
FRC #0589 (FalkØn)
Team Role: Mentor
 
Join Date: Nov 2005
Rookie Year: 2004
Location: La Crescenta, CA
Posts: 417
Arkorobotics is a splendid one to beholdArkorobotics is a splendid one to beholdArkorobotics is a splendid one to beholdArkorobotics is a splendid one to beholdArkorobotics is a splendid one to beholdArkorobotics is a splendid one to beholdArkorobotics is a splendid one to behold
Send a message via AIM to Arkorobotics
Re: Traction Problems...

Add more weight. (Not the best idea)
Make sure the metal frame is not warped.
Use heavier wheels or wheels with more traction.
Shift the weight around so that the weight is evenly distributed.
__________________
2007 Rockwell Automation Innovation in Control Award winners (Southern California Regional)
Crescenta Valley High School Team 589
http://www.arkorobotics.com My Blag


3.141592653589793238462643383275902884197 <- Current memorization of Pi
Callsign: N6ARA
Reply With Quote
  #5   Spotlight this post!  
Unread 01-14-2006, 07:35 PM
AdamHeard's Avatar
AdamHeard AdamHeard is offline
Lead Mentor
FRC #0973 (Greybots)
Team Role: Mentor
 
Join Date: Oct 2004
Rookie Year: 2004
Location: Cal Poly San Luis Obispo
Posts: 4,358
AdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond reputeAdamHeard has a reputation beyond repute
Send a message via AIM to AdamHeard
Re: Traction Problems...

Most of the weight is above or near the front wheels compared to the back. So when you drive in reverse you don't get as much traction.
Also, slick tile floor sucks for traction...
Reply With Quote
  #6   Spotlight this post!  
Unread 01-14-2006, 08:01 PM
KenWittlief KenWittlief is offline
.
no team
Team Role: Engineer
 
Join Date: Mar 2003
Location: Rochester, NY
Posts: 4,213
KenWittlief has a reputation beyond reputeKenWittlief has a reputation beyond reputeKenWittlief has a reputation beyond reputeKenWittlief has a reputation beyond reputeKenWittlief has a reputation beyond reputeKenWittlief has a reputation beyond reputeKenWittlief has a reputation beyond reputeKenWittlief has a reputation beyond reputeKenWittlief has a reputation beyond reputeKenWittlief has a reputation beyond reputeKenWittlief has a reputation beyond repute
Re: Traction Problems...

This use to happen to us on search and rescue calls in the coast guard sometimes, esp boat calls at 3AM

try casting off your mooring lines! :^)
Reply With Quote
  #7   Spotlight this post!  
Unread 01-14-2006, 08:16 PM
Andrew Blair's Avatar
Andrew Blair Andrew Blair is offline
SAE Formula is FIRST with Gasoline.
FRC #0306 (CRT)
Team Role: Alumni
 
Join Date: Feb 2005
Rookie Year: 2004
Location: Corry
Posts: 1,193
Andrew Blair has a reputation beyond reputeAndrew Blair has a reputation beyond reputeAndrew Blair has a reputation beyond reputeAndrew Blair has a reputation beyond reputeAndrew Blair has a reputation beyond reputeAndrew Blair has a reputation beyond reputeAndrew Blair has a reputation beyond reputeAndrew Blair has a reputation beyond reputeAndrew Blair has a reputation beyond reputeAndrew Blair has a reputation beyond reputeAndrew Blair has a reputation beyond repute
Send a message via AIM to Andrew Blair Send a message via Yahoo to Andrew Blair
Re: Traction Problems...

Quote:
Originally Posted by Jon K.
Did you see those tiles just fly by??? I don't want to get into a pushing match with them!!! Nice vid Tom
Hehe, that was so a concrete floor... If it was tile, let me tell you what...
__________________
Reading makes a full man, conference a ready man, and writing an exact man.
-Sir Francis Bacon

"Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius -- and a lot of courage -- to move in the opposite direction."
-Albert Einstein
Reply With Quote
  #8   Spotlight this post!  
Unread 01-14-2006, 09:06 PM
animator1's Avatar
animator1 animator1 is offline
Animator
FRC #1312 (Syntax Error)
Team Role: Animator
 
Join Date: Jan 2006
Rookie Year: 2004
Location: Walkerton
Posts: 47
animator1 is an unknown quantity at this point
Re: Traction Problems...

ya, tighten up that chain.
__________________
Reply With Quote
  #9   Spotlight this post!  
Unread 01-14-2006, 09:11 PM
Cyberguy34000's Avatar
Cyberguy34000 Cyberguy34000 is offline
Scout-Master
AKA: Chris
FRC #0662 (Rocky Mountain Robotics)
Team Role: Scout
 
Join Date: Jan 2005
Rookie Year: 2004
Location: Colorado Springs
Posts: 410
Cyberguy34000 has a reputation beyond reputeCyberguy34000 has a reputation beyond reputeCyberguy34000 has a reputation beyond reputeCyberguy34000 has a reputation beyond reputeCyberguy34000 has a reputation beyond reputeCyberguy34000 has a reputation beyond reputeCyberguy34000 has a reputation beyond reputeCyberguy34000 has a reputation beyond reputeCyberguy34000 has a reputation beyond reputeCyberguy34000 has a reputation beyond reputeCyberguy34000 has a reputation beyond repute
Send a message via AIM to Cyberguy34000
Re: Traction Problems...

Haha! That was great! Thanks for the good laugh.
__________________

I love deadlines, I love the wooshing sound they make as they fly by. - Douglas Adams

They who would give up an essential liberty for temporary security, deserve neither liberty or security. - Benjamin Franklin

Reply With Quote
  #10   Spotlight this post!  
Unread 01-14-2006, 09:18 PM
spamified88's Avatar
spamified88 spamified88 is offline
Registered User
AKA: Sean
FRC #1257 (Parallel Universe)
Team Role: Engineer
 
Join Date: Jun 2005
Rookie Year: 2004
Location: new jersey
Posts: 50
spamified88 will become famous soon enoughspamified88 will become famous soon enough
Send a message via AIM to spamified88
Re: Traction Problems...

That was a pretty good laugh, but I have a better one. Never use spare batteries as weights on a prototype, especially when it's holonomic and decides to spin out of control and spill battery acid in a ring on the floor. Why didn't anyone videotape that?!!
Reply With Quote
  #11   Spotlight this post!  
Unread 01-14-2006, 11:43 PM
artdutra04's Avatar
artdutra04 artdutra04 is offline
VEX Robotics Engineer
AKA: Arthur Dutra IV; NERD #18
FRC #0148 (Robowranglers)
Team Role: Engineer
 
Join Date: Mar 2005
Rookie Year: 2002
Location: Greenville, TX
Posts: 3,022
artdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond reputeartdutra04 has a reputation beyond repute
Re: Traction Problems...

To the Cyber Knight's surprise, a some printf statements revealed some very intimate thoughts coming from the robot controller on their kitbot:

"I think I can, I think I can, I think I can..."

__________________
Art Dutra IV
Robotics Engineer, VEX Robotics, Inc., a subsidiary of Innovation First International (IFI)
Robowranglers Team 148 | GUS Robotics Team 228 (Alumni) | Rho Beta Epsilon (Alumni) | @arthurdutra

世上无难事,只怕有心人.

Last edited by artdutra04 : 01-14-2006 at 11:45 PM. Reason: minor typo...
Reply With Quote
Reply


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
Reducing wheel traction dude__hi General Forum 18 03-29-2004 05:43 PM
Pneumatic Wheels -> Too Much Traction OldDan1168 Technical Discussion 2 02-24-2004 10:28 AM
Traction trouble Rickertsen2 Technical Discussion 11 02-19-2004 10:37 PM
traction questions AlbertW Rules/Strategy 2 01-05-2003 04:58 PM
Friction, traction, torque - oh my... Gui Cavalcanti Technical Discussion 30 08-13-2002 05:01 PM


All times are GMT -5. The time now is 11:19 PM.

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


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi