Nothing in the KOP can prepare me for you.
Home
Go Back   Chief Delphi > Technical > Electrical
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Closed Thread
 
Thread Tools Rating: Thread Rating: 19 votes, 5.00 average. Display Modes
  #1   Spotlight this post!  
Unread 02-01-2014, 17:10
Jon Jack's Avatar
Jon Jack Jon Jack is offline
VEX Robotics
no team (No Team)
 
Join Date: Feb 2005
Rookie Year: 2005
Location: Greenville, TX
Posts: 615
Jon Jack has a reputation beyond reputeJon Jack has a reputation beyond reputeJon Jack has a reputation beyond reputeJon Jack has a reputation beyond reputeJon Jack has a reputation beyond reputeJon Jack has a reputation beyond reputeJon Jack has a reputation beyond reputeJon Jack has a reputation beyond reputeJon Jack has a reputation beyond reputeJon Jack has a reputation beyond reputeJon Jack has a reputation beyond repute
Send a message via AIM to Jon Jack
Re: How to wire unrealistically well?

Quote:
Originally Posted by yash101 View Post
I'm just wondering, but wouldn't that cRIO placement be illegal? Doesn't the cRIO ground itself? Is that a metal matrix under the electrical components.
We use an adhesive backed silicone sheet (McMaster P/N: 8622K41). We cut the sheet to the size of the cRIO and stick it on. You can do this to several cRIOs with one $38 sheet.

Another thing we do is use nylon fasteners. We do this for a few reasons:
  1. Using plastic fasteners on the cRIO helps further isolate it from the baseplate.
  2. You can trim all the fasteners to length (after they've been installed) with a pair of flush cutters.
  3. We're tapping into 1/8" thick aluminum and the threads on the nylon screw will give before we can strip out the tapped hole in the baseplate.
  4. They're light.
__________________
Team 1538 / The Holy Cows, 2005-2016
  #2   Spotlight this post!  
Unread 05-01-2014, 17:16
Doc Wu's Avatar
Doc Wu Doc Wu is offline
Registered User
AKA: Al Gritzmacher
FRC #1507 (Warlocks)
Team Role: Mentor
 
Join Date: Jan 2004
Rookie Year: 2003
Location: Lockport NY
Posts: 207
Doc Wu has a brilliant futureDoc Wu has a brilliant futureDoc Wu has a brilliant futureDoc Wu has a brilliant futureDoc Wu has a brilliant futureDoc Wu has a brilliant futureDoc Wu has a brilliant futureDoc Wu has a brilliant futureDoc Wu has a brilliant futureDoc Wu has a brilliant futureDoc Wu has a brilliant future
Re: How to wire unrealistically well?

Don't forget that copper is heavy. The weight of #12 or #14 wire is not insignificant.

All that neat, right angle turn wiring looks nice, but the hypotenuse of a triangle is shorter than the two sides.

We had a panel with a number of victors one year and wired it all neat and tidy, with a loop so that the panel could be swung down to work on. We needed to lose some weight, though, and ended up cutting about half a pound out of it all without much trouble by re-routing many of the wires.

Layout is important. If the flow from the battery to the main breaker to the PDB to the motor controllers is short, things will be much easier.
__________________
-= Mentor Lockport Warlocks -=- Team 1507 =-
Amateur Radio Callsign: AE2T

2016 Robot Inspector - Fingerlakes, Pittsburgh
2015 Robot Inspector - Pittsburgh, Champs. Judge Observer - Champs
2014 Robot Inspector - Tech Valley, Fingerlakes, Buckeye, Championship
2013 Robot Inspector - Fingerlakes, Buckeye, Championship
2012 Robot Inspector - Fingerlakes, Buckeye, Championship - Website Evaluator - Fingerlakes, Buckeye, Championship
2011 Robot Inspector - Fingerlakes 2011 Safety Advisor - Fingerlakes

  #3   Spotlight this post!  
Unread 05-01-2014, 17:52
Audrey Chu's Avatar
Audrey Chu Audrey Chu is offline
Registered User
FRC #1160 (Titanium Robotics)
Team Role: Mentor
 
Join Date: May 2011
Rookie Year: 2010
Location: San Marino, CA
Posts: 23
Audrey Chu has a spectacular aura aboutAudrey Chu has a spectacular aura aboutAudrey Chu has a spectacular aura about
Send a message via AIM to Audrey Chu
Re: How to wire unrealistically well?

Last year our team was more successful than we've ever been electrically. We had a two person team. Everyone has his or her own style, but the main things were patience and a perfectionist streak. I think I rewired the robot (meaning stripped it down and rerouted wires) maybe five or six times during the last two weeks. I would suggest that you keep in mind where you want your wires to be or not be throughout your design process and maybe even use markers while prototyping.
  #4   Spotlight this post!  
Unread 05-01-2014, 18:41
yash101 yash101 is offline
Curiosity | I have too much of it!
AKA: null
no team
 
Join Date: Oct 2012
Rookie Year: 2012
Location: devnull
Posts: 1,191
yash101 is an unknown quantity at this point
Re: How to wire unrealistically well?

Quote:
Originally Posted by Jon Jack View Post
We use an adhesive backed silicone sheet (McMaster P/N: 8622K41). We cut the sheet to the size of the cRIO and stick it on. You can do this to several cRIOs with one $38 sheet.

Another thing we do is use nylon fasteners. We do this for a few reasons:
  1. Using plastic fasteners on the cRIO helps further isolate it from the baseplate.
  2. You can trim all the fasteners to length (after they've been installed) with a pair of flush cutters.
  3. We're tapping into 1/8" thick aluminum and the threads on the nylon screw will give before we can strip out the tapped hole in the baseplate.
  4. They're light.
Haha Ya. We screw the cRIO into the wood, but velcro everything else!
  #5   Spotlight this post!  
Unread 05-01-2014, 19:59
moogboy's Avatar
moogboy moogboy is offline
Wiggling With Experience
AKA: Bubba
FRC #3175
Team Role: Mentor
 
Join Date: Jan 2012
Rookie Year: 2011
Location: Detroit, Michigan
Posts: 125
moogboy is a jewel in the roughmoogboy is a jewel in the roughmoogboy is a jewel in the roughmoogboy is a jewel in the rough
Re: How to wire unrealistically well?

My team's wiring was always immaculate, largely because one of our mentors took the time to make a full size drawing of exactly how he wanted the motor controllers/CRIO/power distro board placed. After that, he would show me exactly what path the wires should take to get where they needed to go, and as long as I followed that path and remained disciplined, all was good.

The biggest thing for me was having a plan and then executing it with as little interruption as possible.
__________________
I'm Bubba. I make noise, sometimes it comes out as music, and I love robots.
  #6   Spotlight this post!  
Unread 06-01-2014, 02:48
Ariane Nazemi's Avatar
Ariane Nazemi Ariane Nazemi is offline
Faster than light: no left or right
FRC #5209 (Rectify)
Team Role: Mentor
 
Join Date: Dec 2013
Rookie Year: 2009
Location: United States
Posts: 15
Ariane Nazemi is an unknown quantity at this point
Re: How to wire unrealistically well?

For some strange reason I believe robot wiring should be in an odd space between zen art-form and OCD organization. I always relish the opportunity to bring order to the chaos of wires that need to criss-cross throughout the robot. Making them look beautiful in the process is an added bonus. If you consider the wiring itself to be a kind of art project, it makes things that much more enjoyable (for me at least). I really look forward to seeing what my team can do this year, being rookies I hope we can learn clean and beautiful wiring technique at an early age.

Also this is my first official post on Chief Delphi, so I just wanted to say hi!
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 17:44.

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