Go to Post A robot that does 60% of the tasks 100% of the time is better than a robot that does 100% of the tasks 60% of the time. - artdutra04 [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
  #1   Spotlight this post!  
Unread 08-02-2009, 19:02
Phoenix Spud's Avatar
Phoenix Spud Phoenix Spud is offline
Everyone. Everywhere.
FRC #3132 (Thunder Down Under)
Team Role: College Student
 
Join Date: Jan 2009
Rookie Year: 2004
Location: Sydney, Australia
Posts: 703
Phoenix Spud has a reputation beyond reputePhoenix Spud has a reputation beyond reputePhoenix Spud has a reputation beyond reputePhoenix Spud has a reputation beyond reputePhoenix Spud has a reputation beyond reputePhoenix Spud has a reputation beyond reputePhoenix Spud has a reputation beyond reputePhoenix Spud has a reputation beyond reputePhoenix Spud has a reputation beyond reputePhoenix Spud has a reputation beyond reputePhoenix Spud has a reputation beyond repute
Exclamation Static warning!!!

Our team was testing out our robot on a carpet, with the special wheels on a REALLY dry day (we live in NH). After running the robot for a while we decided to work on it. When we touched the robot, to ground our selves, we had BAD static electricity . We were even seeing it arc. We think that the wheels were building a charge as we drove on the carpet. Fortunately, we did not fry anything, but we think that we were just lucky. This is just a warning to make sure no other team (like the ones that lives in a cold dry climate) makes the same mistake and fries something.
__________________
Sarah Heimlich
Outreach Mentor | Business Mentor
FIRST® TEAM 3132
  #2   Spotlight this post!  
Unread 08-02-2009, 20:12
suj's Avatar
suj suj is offline
Alumni/PartTime-Mentor on Team 1219
AKA: Sujeethan Vishnumoorthy
FRC #1219 (Iron Eagles)
Team Role: Mentor
 
Join Date: Jan 2009
Rookie Year: 2009
Location: Canada
Posts: 83
suj is an unknown quantity at this point
Send a message via MSN to suj
Talking Re: Static warning!!!

thanks for warning us all
__________________
Programming Captain: 09/09 - 06/12
Drive Team: 2011-2012
Mentor: Sept 2012
Admin of the Team 1219 Facebook page: https://www.facebook.com/Team1219
http://i46.tinypic.com/i52els.jpg
  #3   Spotlight this post!  
Unread 08-02-2009, 20:17
merybar's Avatar
merybar merybar is offline
Registered User
AKA: Matt
FRC #0894 (Chargers Robotics)
Team Role: Leadership
 
Join Date: Feb 2007
Rookie Year: 2002
Location: Michigan
Posts: 156
merybar is a glorious beacon of lightmerybar is a glorious beacon of lightmerybar is a glorious beacon of lightmerybar is a glorious beacon of lightmerybar is a glorious beacon of light
Send a message via AIM to merybar
Re: Static warning!!!

thanks we really appreciate it!!!
__________________
Team 894 Chargers Robotics


  #4   Spotlight this post!  
Unread 08-02-2009, 20:23
R.C.'s Avatar
R.C. R.C. is offline
2017... Oooh Kill em, Swerve!
AKA: Owner, WestCoast Products
FRC #1323 (MadTown Robotics)
Team Role: Engineer
 
Join Date: Feb 2008
Rookie Year: 2006
Location: Madera, CA
Posts: 2,174
R.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond reputeR.C. has a reputation beyond repute
Re: Static warning!!!

Interesting...
__________________
R.C.
Owner, WestCoast Products || Twitter
MadTown Robotics Team 1323
  #5   Spotlight this post!  
Unread 08-02-2009, 20:42
jwilcox jwilcox is offline
Registered User
FRC #0830
 
Join Date: Jan 2009
Location: Ann Arbor
Posts: 2
jwilcox is an unknown quantity at this point
Re: Static warning!!!

Van de Graaff!
  #6   Spotlight this post!  
Unread 08-02-2009, 20:45
crake crake is offline
National Instruments
AKA: Chris Rake
no team (Athena)
Team Role: Engineer
 
Join Date: Apr 2008
Rookie Year: 2008
Location: Austin, TX
Posts: 184
crake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond reputecrake has a reputation beyond repute
Re: Static warning!!!

Just make sure you ground yourself BEFORE you touch any electronics (driver station, side cars, radio, camera, cRIO, etc.).
  #7   Spotlight this post!  
Unread 09-02-2009, 22:55
VanMan's Avatar
VanMan VanMan is offline
NCSU student
AKA: David VanLeeuwen
no team (Team Awkward Turtle)
Team Role: Alumni
 
Join Date: Feb 2006
Rookie Year: 2006
Location: Raleigh, NC
Posts: 193
VanMan will become famous soon enough
Send a message via AIM to VanMan
Re: Static warning!!!

Yep. We had an indecent tonight. We went to the local museum that has a artificial ice rink (basically frictionless). It shocked when we touched the driver station and then the ethernet ports failed, first one, then both. We ordered a new driver station tonight. The most recent update had a way to ground it. I STRONGLY suggest everyone to, if you haven't already. We lost our practice time and fried the DS. We bought some floor stuff so we can practice in our building on the weekend.
__________________
2010-present - NC State University Underwater Robotics Team
ncsurobotics.com

2007-2009 - FRC 2108
2006 - FRC 926
  #8   Spotlight this post!  
Unread 09-02-2009, 23:00
nuggetsyl's Avatar
nuggetsyl nuggetsyl is offline
Registered User
FRC #0025
Team Role: Coach
 
Join Date: Sep 2001
Location: north brunswick
Posts: 869
nuggetsyl has a reputation beyond reputenuggetsyl has a reputation beyond reputenuggetsyl has a reputation beyond reputenuggetsyl has a reputation beyond reputenuggetsyl has a reputation beyond reputenuggetsyl has a reputation beyond reputenuggetsyl has a reputation beyond reputenuggetsyl has a reputation beyond reputenuggetsyl has a reputation beyond reputenuggetsyl has a reputation beyond reputenuggetsyl has a reputation beyond repute
Re: Static warning!!!

the driver's station are so sensitive we are looking into placing a static mat under it.

http://www.antistaticmat.net/
__________________
00,12Championship winner
03,06,08 Championship finalist
02A,03C,06N,08C,11N,12G Division winner
00,03,06,07,08,10,12 NJ / MAR winner
11 VCU winner
06,10 Las Vegas winner
12 MAR Mt Olive
red is for team 348
  #9   Spotlight this post!  
Unread 09-02-2009, 23:11
Akash Rastogi Akash Rastogi is offline
Jim Zondag is my Spirit Animal
FRC #2170 (Titanium Tomahawks)
Team Role: Mentor
 
Join Date: Feb 2007
Rookie Year: 2006
Location: Manchester, Connecticut
Posts: 7,003
Akash Rastogi has a reputation beyond reputeAkash Rastogi has a reputation beyond reputeAkash Rastogi has a reputation beyond reputeAkash Rastogi has a reputation beyond reputeAkash Rastogi has a reputation beyond reputeAkash Rastogi has a reputation beyond reputeAkash Rastogi has a reputation beyond reputeAkash Rastogi has a reputation beyond reputeAkash Rastogi has a reputation beyond reputeAkash Rastogi has a reputation beyond reputeAkash Rastogi has a reputation beyond repute
Re: Static warning!!!

Quote:
Originally Posted by nuggetsyl View Post
the driver's station are so sensitive we are looking into placing a static mat under it.

http://www.antistaticmat.net/
Are you guys having random reboots when there's static? We are. The mats work great for this btw, but there's still some problems for us with static.
__________________
My posts and opinions do not necessarily reflect those of my affiliated team.
['16-'xx]: Mentor FRC 2170 | ['11-'13]: Co-Founder/Mentor FRC 3929 | ['06-'10]: Student FRC 11 - MORT | ['08-'12]: Founder - EWCP (OG)
  #10   Spotlight this post!  
Unread 10-02-2009, 07:27
Russ Beavis Russ Beavis is offline
Registered User
no team
 
Join Date: Nov 2005
Location: Manchester, NH - DEKA R&D Corp.
Posts: 341
Russ Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond repute
Re: Static warning!!!

To be absolutely clear, the grounding of the Driver Station for ESD immunity is a rule (R85.1) that MUST be followed by teams. Inspectors will be checking for the rework.

http://www.usfirst.org/uploadedFiles/Driver%20Station%20ESD%20Sensitivity%20Rework%20In structions.pdf

Russ
  #11   Spotlight this post!  
Unread 10-02-2009, 08:35
jamie_1930's Avatar
jamie_1930 jamie_1930 is offline
Registered User
FRC #2228 (Cougartech)
Team Role: Student
 
Join Date: Feb 2008
Rookie Year: 2008
Location: Rush-Henrietta
Posts: 371
jamie_1930 is a splendid one to beholdjamie_1930 is a splendid one to beholdjamie_1930 is a splendid one to beholdjamie_1930 is a splendid one to beholdjamie_1930 is a splendid one to beholdjamie_1930 is a splendid one to beholdjamie_1930 is a splendid one to behold
Re: Static warning!!!

FIRST sent out a new update on how to ground the driver to prevent you from destroying it with static.
  #12   Spotlight this post!  
Unread 10-02-2009, 10:34
Team 135 Team 135 is offline
Registered User
FRC #0135 (Penn Robotics)
 
Join Date: Jan 2008
Rookie Year: 1998
Location: Mishawaka, Indiana
Posts: 139
Team 135 will become famous soon enough
Re: Static warning!!!

As for testing, we have been using a drag wire to discharge the potential difference between the bot and the floor. We know that we cannot do it at the competition, but it is a good thing to do while you are in the shop testing.
  #13   Spotlight this post!  
Unread 10-02-2009, 10:46
Alan Anderson's Avatar
Alan Anderson Alan Anderson is offline
Software Architect
FRC #0045 (TechnoKats)
Team Role: Mentor
 
Join Date: Feb 2004
Rookie Year: 2004
Location: Kokomo, Indiana
Posts: 9,112
Alan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond repute
Re: Static warning!!!

Quote:
Originally Posted by Team 135 View Post
As for testing, we have been using a drag wire to discharge the potential difference between the bot and the floor. We know that we cannot do it at the competition,...
What rule prevents you from doing it?
  #14   Spotlight this post!  
Unread 10-02-2009, 11:00
Russ Beavis Russ Beavis is offline
Registered User
no team
 
Join Date: Nov 2005
Location: Manchester, NH - DEKA R&D Corp.
Posts: 341
Russ Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond reputeRuss Beavis has a reputation beyond repute
Re: Static warning!!!

As long as it doesn't add traction, damage the floor or connect to either battery terminal, a discharge wire sounds good to me.

Russ
  #15   Spotlight this post!  
Unread 10-02-2009, 12:25
Unsung FIRST Hero
Mike Betts Mike Betts is offline
Electrical Engineer
no team
Team Role: Engineer
 
Join Date: Dec 2001
Rookie Year: 1995
Location: Homosassa, FL
Posts: 1,442
Mike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond reputeMike Betts has a reputation beyond repute
Re: Static warning!!!

Anthony,

As Alan and Russ have advised, yes you can have a discharge wire, In addition to their guidance, I would add to be sure that the wire is always within the "bumper perimeter" and does not pose an entanglement hazard.

Regards,

Mike
__________________
Mike Betts

Alumnus, Team 3518, Panthrobots, 2011
Alumnus, Team 177, Bobcat Robotics, 1995 - 2010
LRI, Connecticut Regional, 2007-2010
LRI, WPI Regional, 2009 - 2010
RI, South Florida Regional, 2012 - 2013

As easy as 355/113...
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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Static Cling?? orelinde Electrical 17 27-02-2006 17:33
Static Variables amateurrobotguy Programming 8 04-03-2005 00:40
Static Electricity JeffO Championship Event 5 19-04-2004 11:04
Static on the HDPE Al Skierkiewicz Technical Discussion 60 12-03-2003 17:52
Static Electricity archiver 2001 12 24-06-2002 00:34


All times are GMT -5. The time now is 22:34.

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