View Single Post
  #14   Spotlight this post!  
Unread 04-04-2016, 14:26
waialua359's Avatar
waialua359 waialua359 is offline
Mentor
AKA: Glenn
FRC #0359 (Hawaiian Kids)
Team Role: Mentor
 
Join Date: Apr 2003
Rookie Year: 2000
Location: Waialua, HI
Posts: 3,294
waialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond reputewaialua359 has a reputation beyond repute
Re: COMM lost way to many times

Quote:
Originally Posted by philso View Post
High humidity and static electricity are usually mutually exclusive. One method used in industry to control static electricity is to humidify the air. I have not had static problems at work since moving from Eastern Canada to Houston but then our equipment does not have so many rotating parts. It is possible that the pneumatic tires used by many teams this year may generate much more static charge than other types of wheels used more commonly in previous years.

Try wiping some fabric softener sheets all over the tires. They leave a mildly conductive film that will help dissipate the static charge that accumulates on the tires. You would want to wipe all the way to the shafts or metal hubs that are in contact with the shafts. Hopefully, this will dissipate and equalize the charge over the whole robot so there cannot be an electro-static discharge from one part of the robot to another. It may be necessary to re-apply the fabric softener periodically since it may rub off. Alternatively, there are industrial anti-static coatings and sprays such as Staticide, but they are probably harder to get than the fabric softener. I also just found these instructions on how to make your own anti-static spray.

Perhaps CTRE can add some clamping devices such as TVS' across the inputs and outputs of the PDP and VRM. They would add only a dollar, or less, to the part costs though they would need some board space. The wiring in our robots is short enough that a TVS in the PDP would probably limit the voltages in the whole circuit running to the radio quite effectively.
Thanks for the insight and links. We will definitely look into this for Championships.
__________________

2016 Hawaii Regional #1 seed, IDesign, Safety Award
2016 NY Tech Valley Regional Champions, #1 seed, Innovation in Controls Award
2016 Lake Superior Regional Champions, #1 seed, Quality Award, Dean's List
2015 FRC Worlds-Carver Division Champions
2015 Hawaii Regional Champions, #1 seed.
2015 Australia Regional Champions, #2 seed, Engineering Excellence Award
2015 Inland Empire Regional Champions, #1 seed, Industrial Design Award
2014 OZARK Mountain Brawl Champions, #1 seed.
2014 Hawaii Regional Champions, #1 seed, UL Safety Award
2014 Dallas Regional Champions, #1 seed, Engineering Excellence Award
2014 Northern Lights Regional Champions, #1 seed, Entrepreneurship Award
2013 Championship Dean's List Winner
2013 Utah Regional Champion, #1 seed, KP&B Award, Deans List
2013 Boilermaker Regional Champion, #1 seed, Motorola Quality Award
2012 Lone Star Regional Champion, #1 seed, Motorola Quality Award
2012 Hawaii Regional Champions #1 seed, Motorola Quality Award
Reply With Quote