Go to Post I hope you realize that by starting this thread you have earned yourself a permanent place at the "WOEWITWISTFT" ("What On Earth Was I Thinking When I Started THAT FIRST Trend?") table. It's members are few, but the conversation is the most honest and amusing in the entire place. ;) - Jessica Boucher [more]
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 Rate Thread Display Modes
  #1   Spotlight this post!  
Unread 17-02-2011, 20:08
JellyMan JellyMan is offline
Mentor, Team 3414
AKA: Jeff
FRC #3414 (Falcon Robotics)
Team Role: Mentor
 
Join Date: Jan 2010
Rookie Year: 2010
Location: Farmington, MI
Posts: 17
JellyMan has a spectacular aura aboutJellyMan has a spectacular aura about
Electrically Powered "Manual Mode"

We would like to be able to control our robotic arm and gripper using some manually operated electrical switches completely separate from the wireless controls. This would allow us to release the gripper and retract the arm after a match when the robot wireless controls are powered down.
I could not find any prohibition of this in the rules. Is this allowable?
The "manual mode" controls would still be locked out by the main breaker.
  #2   Spotlight this post!  
Unread 17-02-2011, 20:32
BrandonG's Avatar
BrandonG BrandonG is offline
IRC Junkie
FRC #2865 (Roboteknix)
Team Role: Programmer
 
Join Date: Feb 2010
Rookie Year: 2009
Location: Post falls
Posts: 48
BrandonG is a glorious beacon of lightBrandonG is a glorious beacon of lightBrandonG is a glorious beacon of lightBrandonG is a glorious beacon of lightBrandonG is a glorious beacon of light
Re: Electrically Powered "Manual Mode"

From what I remember last year, you are forbidden from powering up your robot after a match while it is still on the field. That and I believe you are supposed to be able to safely move it post match without having power. Im not near a rulebook atm, so if someone could please double check for me that would be great.
__________________
www.roboteknix.com


Quote:
Originally Posted by A bum in Atlanta
if you was my sister I'd mug you
If anyone uses IRC, pm me and let me know what networks, I have never heard of anyone in FRC using IRC besides me O_o
  #3   Spotlight this post!  
Unread 17-02-2011, 20:38
rutzman rutzman is offline
Registered User
AKA: Ryan
FRC #2614 (MARS)
Team Role: Alumni
 
Join Date: Sep 2008
Rookie Year: 2008
Location: Morgantown, WV
Posts: 126
rutzman has a brilliant futurerutzman has a brilliant futurerutzman has a brilliant futurerutzman has a brilliant futurerutzman has a brilliant futurerutzman has a brilliant futurerutzman has a brilliant futurerutzman has a brilliant futurerutzman has a brilliant futurerutzman has a brilliant futurerutzman has a brilliant future
Re: Electrically Powered "Manual Mode"

Quote:
Originally Posted by BrandonG View Post
From what I remember last year, you are forbidden from powering up your robot after a match while it is still on the field. That and I believe you are supposed to be able to safely move it post match without having power. Im not near a rulebook atm, so if someone could please double check for me that would be great.
http://forums.usfirst.org/showthread.php?t=16748
  #4   Spotlight this post!  
Unread 17-02-2011, 20:46
Matt Krass's Avatar
Matt Krass Matt Krass is offline
"Old" and Cranky. Get off my lawn!
AKA: Dark Ages
FRC #0263 (Sachem Aftershock)
Team Role: Mentor
 
Join Date: Oct 2002
Rookie Year: 2002
Location: Long Island, NY
Posts: 1,187
Matt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond repute
Send a message via AIM to Matt Krass
Re: Electrically Powered "Manual Mode"

This would be illegal as per the following rules:

Quote:
Originally Posted by FRC Manual
<R17> Field power to the ROBOTS will not be re-enabled after a MATCH. ROBOTS must be designed to permit removal of GAME PIECES from the ROBOT, and removal of the ROBOT from other FIELD elements and/or other ROBOTS without requiring activation of the ROBOT power system.

<R48> All electrical loads (motors, actuators, compressors) must be supplied by an approved power regulating device (speed controller, relay module, or Digital Sidecar PWM port) that is controlled by the cRIO-FRC on the ROBOT.

<R49> ROBOTS must be controlled via the programmable National Instruments cRIO-FRC (National Instruments part number 780406-01). Other controllers shall not be used
Sorry, you'll definitely need to rethink that idea.
__________________
Matt Krass
If I suggest something to try and fix a problem, and you don't understand what I mean, please PM me!

I'm a FIRST relic of sorts, I remember when we used PBASIC and we got CH Flightsticks in the KoP. In my day we didn't have motorized carts, we pushed our robots uphill, both ways! (Houston 2003!)
  #5   Spotlight this post!  
Unread 17-02-2011, 21:37
JellyMan JellyMan is offline
Mentor, Team 3414
AKA: Jeff
FRC #3414 (Falcon Robotics)
Team Role: Mentor
 
Join Date: Jan 2010
Rookie Year: 2010
Location: Farmington, MI
Posts: 17
JellyMan has a spectacular aura aboutJellyMan has a spectacular aura about
Re: Electrically Powered "Manual Mode"

Thanks for the feedback.
We recognized <R17> but felt that it is a bit vague or misleading. Is "field power" defined? We assumed that field power might refer only to the wireless controls, but the wireless controls would not be needed for manual control of a lifting device.
The manual mode is not a necessity, but without it, I think that many teams will be trying to move robots off the field in some rather awkward configurations. It may be safer to allow teams to place the robots back in the STARTING CONFIGURATION before leaving the field.
  #6   Spotlight this post!  
Unread 17-02-2011, 21:40
Matt Krass's Avatar
Matt Krass Matt Krass is offline
"Old" and Cranky. Get off my lawn!
AKA: Dark Ages
FRC #0263 (Sachem Aftershock)
Team Role: Mentor
 
Join Date: Oct 2002
Rookie Year: 2002
Location: Long Island, NY
Posts: 1,187
Matt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond reputeMatt Krass has a reputation beyond repute
Send a message via AIM to Matt Krass
Re: Electrically Powered "Manual Mode"

Quote:
Originally Posted by JellyMan View Post
Thanks for the feedback.
We recognized <R17> but felt that it is a bit vague or misleading. Is "field power" defined? We assumed that field power might refer only to the wireless controls, but the wireless controls would not be needed for manual control of a lifting device.
The manual mode is not a necessity, but without it, I think that many teams will be trying to move robots off the field in some rather awkward configurations. It may be safer to allow teams to place the robots back in the STARTING CONFIGURATION before leaving the field.
We used to be able to power up robots post-match for reconfiguration prior to removal. This proved very... very bad for scheduling and safety.

Also, while field power may be vague, ROBOT power system is pretty straightforward, also the other rules are also in direct conflict, sorry.

Matt
__________________
Matt Krass
If I suggest something to try and fix a problem, and you don't understand what I mean, please PM me!

I'm a FIRST relic of sorts, I remember when we used PBASIC and we got CH Flightsticks in the KoP. In my day we didn't have motorized carts, we pushed our robots uphill, both ways! (Houston 2003!)
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 18:55.

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