Go to Post It's official: we've run out of things to talk about. - Jessica Boucher [more]
Home
Go Back   Chief Delphi > FIRST > General Forum
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Reply
Thread Tools Rate Thread Display Modes
  #46   Spotlight this post!  
Unread 16-10-2016, 18:04
AmiableVariable's Avatar
AmiableVariable AmiableVariable is offline
the ginger one
AKA: Hannah Fritsch
FRC #4488 (Shockwave)
Team Role: Alumni
 
Join Date: Jan 2014
Rookie Year: 2013
Location: Oregon
Posts: 20
AmiableVariable is a name known to allAmiableVariable is a name known to allAmiableVariable is a name known to allAmiableVariable is a name known to allAmiableVariable is a name known to allAmiableVariable is a name known to all
Re: Worst you've seen to the Defenses?

Quote:
Originally Posted by Jalerre View Post
We had a fun match at SMR.
That is impressive

I'd say some of the longest lasting damage I encountered was from our teams practice drawbridge this year. It was not built out of wood, so the worst we could do to it was pop the string out of the pulleys. It, however, would bind up something terrible. To cope with it, we had to gear the arms very high, and precisely time the lift. We shredded so many gears on that thing. We get to the practice field at the first competition and just have to bump it up lightly with our arm....

That overgearing plagued us most of the season, and we spent finals of our first event playing defense because the gearing failed again Entirely due to faults in the design, we definitely should have used sprockets and chain or belts and pulleys, because at that torque any sharp shock or stall could break the system (usually this happened with the cheval). Hindsight is 20/20

My brother (our secondary driver) started wearing one of the shredded gears as a necklace.
__________________
Currently studying Mechanical Engineering at the University of New Mexico
4488 2013-2016
Captain/Mechanical Lead/Drive-Coach 2014-2016
2015 Deans List Finalist
Reply With Quote
  #47   Spotlight this post!  
Unread 17-10-2016, 00:59
BenDSterling's Avatar
BenDSterling BenDSterling is offline
Alumni, Mentor, Volunteer
FRC #6325 (Reset Robotics)
Team Role: Mentor
 
Join Date: Apr 2014
Rookie Year: 2011
Location: Georgia
Posts: 119
BenDSterling will become famous soon enough
Re: Worst you've seen to the Defenses?

I wouldn't count this as damage but I have the share it. If you can't tell that's the drawbridge.

__________________
Lead Mentor: FRC Team Reset Robotics (#6325)
Mentor: FTC Teams #9686 & #10396
Head of AV for Georgia FIRST Robotics
FTC South Super Regional planning committee member

Last edited by BenDSterling : 17-10-2016 at 01:04.
Reply With Quote
  #48   Spotlight this post!  
Unread 17-10-2016, 01:04
BenDSterling's Avatar
BenDSterling BenDSterling is offline
Alumni, Mentor, Volunteer
FRC #6325 (Reset Robotics)
Team Role: Mentor
 
Join Date: Apr 2014
Rookie Year: 2011
Location: Georgia
Posts: 119
BenDSterling will become famous soon enough
Re: Worst you've seen to the Defenses?

Quote:
Originally Posted by Kellen Hill View Post
Has yet to cause or receive any damage, but I'm curious how the Log Roll will fare at GRITS (Georgia Robotics Invitational & Tournament Showcase) on October 22nd.

Here is the provided description:
The Log Roll is composed of two 3.5 inch diameter logs in a 3 degree X shape that your robot must traverse. Both logs roll on independent bearings and will have a textured "bark" applied to the outside.
I can't wait to see the Log Roll! It should be fun.
__________________
Lead Mentor: FRC Team Reset Robotics (#6325)
Mentor: FTC Teams #9686 & #10396
Head of AV for Georgia FIRST Robotics
FTC South Super Regional planning committee member
Reply With Quote
  #49   Spotlight this post!  
Unread 17-10-2016, 10:56
ILAMtitan ILAMtitan is offline
Texas Instruments
AKA: Bart Basile
FRC #3005 (RoboChargers)
Team Role: Mentor
 
Join Date: Nov 2013
Rookie Year: 2013
Location: Dallas
Posts: 72
ILAMtitan will become famous soon enoughILAMtitan will become famous soon enough
Re: Worst you've seen to the Defenses?

Our driver on 3005 got a trophy from TRR this summer when he broke off the polycarb divider on the batter ramps. That seems pretty common though.

The worst I personally witnessed was as game announcer at Alamo, and this all happened about 5 feet from me. 4091 accidentally used the wrong auto code in a match, making them go full speed over the moat and crash into the driver's station. They weren't done though, and about 2 seconds later the robot did a 180, and went full speed back to the center of the field. It hit the defense divider by the secret passage right in the middle of their intake. The entire defense holder got ripped off the field. This was only one of many delays for the very long event.
Attached Thumbnails
Click image for larger version

Name:	20160312_103431.jpg
Views:	62
Size:	719.7 KB
ID:	21180  
Reply With Quote
  #50   Spotlight this post!  
Unread 17-10-2016, 11:11
adciv adciv is offline
One Eyed Man
FRC #0836 (RoboBees)
Team Role: Mentor
 
Join Date: Jan 2012
Rookie Year: 2010
Location: Southern Maryland
Posts: 478
adciv is a name known to alladciv is a name known to alladciv is a name known to alladciv is a name known to alladciv is a name known to alladciv is a name known to all
Re: Worst you've seen to the Defenses?

Quote:
Originally Posted by ILAMtitan View Post
. It hit the defense divider by the secret passage right in the middle of their intake. The entire defense holder got ripped off the field
............ What gear ratio and motor combination were you using to manage that?! o_0
__________________
Quote:
Originally Posted by texarkana View Post
I would not want the task of devising a system that 50,000 very smart people try to outwit.
Reply With Quote
  #51   Spotlight this post!  
Unread 17-10-2016, 11:20
PatEhrgott's Avatar
PatEhrgott PatEhrgott is offline
Registered User
FRC #0708
 
Join Date: May 2016
Rookie Year: 2015
Location: Pennsylvania
Posts: 3
PatEhrgott will become famous soon enough
Re: Worst you've seen to the Defenses?

The worst I've seen done to the field was at week one Hatboro-Horsham. I think the photo will speak for itself.


https://twitter.com/FRC708/status/706292723519758336
Reply With Quote
  #52   Spotlight this post!  
Unread 17-10-2016, 12:00
ILAMtitan ILAMtitan is offline
Texas Instruments
AKA: Bart Basile
FRC #3005 (RoboChargers)
Team Role: Mentor
 
Join Date: Nov 2013
Rookie Year: 2013
Location: Dallas
Posts: 72
ILAMtitan will become famous soon enoughILAMtitan will become famous soon enough
Re: Worst you've seen to the Defenses?

Quote:
Originally Posted by adciv View Post
............ What gear ratio and motor combination were you using to manage that?! o_0
I was just the GA, not my robot.
Reply With Quote
  #53   Spotlight this post!  
Unread 18-10-2016, 09:59
petercooperjr's Avatar
petercooperjr petercooperjr is offline
Registered User
AKA: Peter Cooper Jr.
no team
 
Join Date: Mar 2014
Rookie Year: 1999
Location: Charlton, MA
Posts: 31
petercooperjr is an unknown quantity at this point
Re: Worst you've seen to the Defenses?

As a ref at the Rhode Island event, I saw a robot in Auto go full-speed backwards (not sure if it was programmed wrong or just placed on the field the wrong way around), right into a Cheval de Fail, bending one of the "planks".

https://twitter.com/laj517/status/713440848839630848

For the entire year, I alternated between being amazed at how much carnage happened to the field and its elements, and being amazed at how well it all held up considering what it was going through. I know the New England fields' bottom-of-driver-stations diamond plate will never be the same again, even though during take-down we jump on it trying to get it straightened out again.
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


All times are GMT -5. The time now is 10:13.

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