Go to Post Just make a FIRST version of Quidditch. The only people who would be complaining are drivers from previous years who wanted to play it. - Koko Ed [more]
Home
Go Back   Chief Delphi > FIRST > Robot Showcase
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 27-01-2012, 23:56
Coin3's Avatar
Coin3 Coin3 is offline
Registered User
AKA: Griffin Cerva
FRC #4110 (Deep Space Niners)
Team Role: Leadership
 
Join Date: Jan 2012
Rookie Year: 2011
Location: Brookings, OR
Posts: 47
Coin3 is an unknown quantity at this point
FRC 4110 First Drive!

Be warned, half of the full 11 minute video is random shenanigans not directly pertaining to the robot.

http://youtu.be/JkhMVP12XBQ

We are hoping to be able to climb over the bar dividing the court instead of using the ramps. It sure is a pounding situation...
  #2   Spotlight this post!  
Unread 27-01-2012, 23:59
Andrew Lawrence
 
Posts: n/a
Re: FRC 4110 First Drive!

I really mean this:

You're a wide configuration. DO NOT go over the bump without lots of extra time/engineering. It's gonna be hard to do right, and with any error you're gonna fall.
  #3   Spotlight this post!  
Unread 28-01-2012, 00:02
Coin3's Avatar
Coin3 Coin3 is offline
Registered User
AKA: Griffin Cerva
FRC #4110 (Deep Space Niners)
Team Role: Leadership
 
Join Date: Jan 2012
Rookie Year: 2011
Location: Brookings, OR
Posts: 47
Coin3 is an unknown quantity at this point
Re: FRC 4110 First Drive!

I'll be sure to tell our mentor.

We are a rookie team, and being 3 weeks in and just starting to drive, I think you are right about needing extra time.
  #4   Spotlight this post!  
Unread 28-01-2012, 00:04
JohnSchneider's Avatar
JohnSchneider JohnSchneider is offline
Registered User
FRC #3310 (Black Hawk Robotics)
Team Role: Mentor
 
Join Date: Mar 2010
Rookie Year: 2010
Location: Dallas
Posts: 779
JohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond repute
Re: FRC 4110 First Drive!

You should also be testing on carpet. The extra traction will help(wheel wont slip), and youll get a better feel for how the game will be played
  #5   Spotlight this post!  
Unread 28-01-2012, 00:06
John's Avatar
John John is offline
Registered User
AKA: John Gillespie
FRC #1153 (Roborebels)
Team Role: Mechanical
 
Join Date: Sep 2011
Rookie Year: 2009
Location: Walpole MA
Posts: 71
John is just really niceJohn is just really niceJohn is just really niceJohn is just really niceJohn is just really nice
Re: FRC 4110 First Drive!

Quote:
Originally Posted by SuperNerd256 View Post
I really mean this:

You're a wide configuration. DO NOT go over the bump without lots of extra time/engineering. It's gonna be hard to do right, and with any error you're gonna fall.
Going over the bump wide is very possible, without that much extra work. It is slightly more complicated than if you are long, but with a low center of gravity it shouldn't be a problem.

Don't give up on a part of the game that may turn out to be critical (if you ever need to play defense you need to cross the bump, and if you are a good shooter many balls are likely to end up on the other side of the field) without first seeing what you can do.

Test going over the bump (correct length if possible), if you have trouble you might not want to do it or you might want to devote more time to getting a low center of gravity, but don't abandon it without testing.

Edit: you definitely want to try it with something closer to a real bump. The difference in material, as well as the difference in length will be important (especially since you seem to get stuck halfway across)

Last edited by John : 28-01-2012 at 00:12.
  #6   Spotlight this post!  
Unread 28-01-2012, 00:16
CalTran's Avatar
CalTran CalTran is offline
MST Rolla Senior
FRC #2410 (BV CAPS Metal Mustang Robotics)
Team Role: College Student
 
Join Date: Apr 2010
Rookie Year: 2010
Location: Overland Park, Kansas
Posts: 2,419
CalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond reputeCalTran has a reputation beyond repute
Re: FRC 4110 First Drive!

First, let me say congratulations on having a pretty well formed robot your rookie season. You're certainly headed in the right direction. Also, good look on the rest of your season If it helps, we're a 5 year veteran team and still trying to figure out how to get over the barrier without turning our 'bot into a hovercraft (if only for a few seconds).

On a small serious note, if you're testing the robot and people are getting near it, we on Chief Delphi would feel better if you wore safety glasses over your eyes. They work much better that way

To end on a happy note, SANDSTORM!
__________________
Team 2410 thinks KISSing is amazing! Keep It Super Safe!
  • "You know you've been in robotics too long when you start talking to your tools." "Well, you've been in robotics CLEARLY too long when they start talking back"
  • Theory is when you know everything but nothing works. Practice is when everything works but you don't know why. On our team, theory and practice comes together - nothing works and nobody knows why.
MMR 2410 Student (2010 - 2013) | MMR 2410 Mentor (2013 - Present)
FTC Game Announcer / EmCee (2014 - Present) | FRC EmCee (2015 - Present) | FRC Referee (2016) | FTC Referee (2017)
Academic Student (Forever)
  #7   Spotlight this post!  
Unread 28-01-2012, 00:25
deshnik deshnik is offline
Registered User
AKA: Nikhil
FRC #0781 (Kinetic Knights)
Team Role: Student
 
Join Date: Sep 2011
Rookie Year: 2006
Location: Kincardine
Posts: 13
deshnik is on a distinguished road
Re: FRC 4110 First Drive!

you also might want to use 4 cims and larger wheels it looked like you were using 6 or 8 in wheels or a mechanism
  #8   Spotlight this post!  
Unread 28-01-2012, 00:48
Coin3's Avatar
Coin3 Coin3 is offline
Registered User
AKA: Griffin Cerva
FRC #4110 (Deep Space Niners)
Team Role: Leadership
 
Join Date: Jan 2012
Rookie Year: 2011
Location: Brookings, OR
Posts: 47
Coin3 is an unknown quantity at this point
Re: FRC 4110 First Drive!

Thanks for the comments and criticism guys.

The current wheels are 8 in., and are powered by one cim motor on each side connected with chain.
  #9   Spotlight this post!  
Unread 28-01-2012, 03:17
JohnSchneider's Avatar
JohnSchneider JohnSchneider is offline
Registered User
FRC #3310 (Black Hawk Robotics)
Team Role: Mentor
 
Join Date: Mar 2010
Rookie Year: 2010
Location: Dallas
Posts: 779
JohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond reputeJohnSchneider has a reputation beyond repute
Re: FRC 4110 First Drive!

If you have no plans to use any more CIMs I suggest you do add 2 more. ESPECIALLY with those wheels, youll need all the help you can get.
  #10   Spotlight this post!  
Unread 28-01-2012, 03:40
roystur44's Avatar
roystur44 roystur44 is offline
Mentor/Sponsor
AKA: Roy Dumlao
FRC #4543 (Apollo Robotics)
Team Role: Mentor
 
Join Date: Mar 2010
Rookie Year: 2006
Location: San Jose,California
Posts: 363
roystur44 has a reputation beyond reputeroystur44 has a reputation beyond reputeroystur44 has a reputation beyond reputeroystur44 has a reputation beyond reputeroystur44 has a reputation beyond reputeroystur44 has a reputation beyond reputeroystur44 has a reputation beyond reputeroystur44 has a reputation beyond reputeroystur44 has a reputation beyond reputeroystur44 has a reputation beyond reputeroystur44 has a reputation beyond repute
Send a message via Yahoo to roystur44
Re: FRC 4110 First Drive!

I read this article on Popular Science. Maybe it will give you guys some inspiration???

http://www.popsci.com/technology/art...g-robot-design
__________________
Roy Dumlao

Mentor/Sponsor
2006-2012 971
2013-2017 4543
  #11   Spotlight this post!  
Unread 28-01-2012, 10:44
Borobo Borobo is offline
Registered User
AKA: Patrick
FRC #0159 (Alpine Robotics)
Team Role: CAD
 
Join Date: May 2011
Rookie Year: 2010
Location: Fort collins
Posts: 43
Borobo is just really niceBorobo is just really niceBorobo is just really niceBorobo is just really niceBorobo is just really nice
Re: FRC 4110 First Drive!

I would like to suggest caution with the bump as well, since with a center of gravity as high as yours is, you could very easily tip over your robot if you hit the bump at an angle or were hit by a robot while crossing. also, while I'm not trying to discourage you, the actual bump has a lot less traction than the foam mats since it's made of steel. you should go get some thin sheet steel and put it over a wooden bump for tests
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 00:32.

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