Go to Post I am still holding out for the jello-based game - dlavery [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 29-01-2008, 08:30
7-11number1 7-11number1 is offline
ROAR.
FRC #1711 (RAPTORS)
 
Join Date: Sep 2007
Rookie Year: 2006
Location: Traverse City, Michigan
Posts: 46
7-11number1 will become famous soon enough
1711 Video demonstration

A few teams were asking for a video of our pneumatic jaws working and here they are.

http://www.youtube.com/watch?v=AMx1_JmLhJA
http://www.youtube.com/watch?v=Atg1Qp-lu6Y
and heres the link to the pictures of the robot as it currently is
http://www.flickr.com/photos/23220170@N07/

The videos are from week 2 and the pics week 3. I would have liked to have our most current version of the robot grabbing the and throwing the ball but were having technical difficulties with it. The jaw has just minor spots where it shifts creating a problem. The jaws are made of steel conduit, and the hinges they are attached to are free spinning (pics only). We need suggestions to fix the hinges the jaws attach to.
As for pneumatics the compressor is on the robot and always running. Grabbing the ball, lifting the arm, and launch expends almost all of our air. Our working psi is set 60 right now.
  #2   Spotlight this post!  
Unread 29-01-2008, 12:48
sea_master's Avatar
sea_master sea_master is offline
Registered User
AKA: the $@#$@#$@#$@#$@#$@# guy
FRC #1947 (the black knights)
Team Role: Driver
 
Join Date: Feb 2006
Rookie Year: 2006
Location: israel
Posts: 27
sea_master is on a distinguished road
Send a message via ICQ to sea_master Send a message via MSN to sea_master
Re: 1711 Video demonstration

very nice bot..
good work!
__________________
phase 1: collect underpants
phase 2:???
phase 3: profit!
  #3   Spotlight this post!  
Unread 29-01-2008, 12:57
MrForbes's Avatar
MrForbes MrForbes is online now
Registered User
AKA: Jim
FRC #1726 (N.E.R.D.S.)
Team Role: Mentor
 
Join Date: Feb 2006
Rookie Year: 2006
Location: Sierra Vista AZ
Posts: 6,033
MrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond repute
Re: 1711 Video demonstration

We were having trouble with air consumption, so we thought about how to set up the cylinders so that they only need air applied on one end, the other end is open and gravity or some other part of the robot pushes it back to starting position.

On the jaw hinge...that looks like a tough problem, and it's hard to see enough detail of what you have now to help figure out different ways to do it. Maybe some close up pictures would help.
  #4   Spotlight this post!  
Unread 29-01-2008, 21:38
x7shaddow's Avatar
x7shaddow x7shaddow is offline
master of sleep
FRC #1346
Team Role: Mechanical
 
Join Date: Oct 2007
Rookie Year: 2005
Location: Vancouver B.C.
Posts: 12
x7shaddow is an unknown quantity at this point
Re: 1711 Video demonstration

It looks like a good well thought out design but I might suggest bracing the claw that grabs it because I's hate to see what would happen if you slammed unexpectadly into the overpass of arena wall.
  #5   Spotlight this post!  
Unread 29-01-2008, 23:10
Qbranch Qbranch is offline
wow college goes fast.
AKA: Alex
FRC #1024 (Kil-A-Bytes)
Team Role: Alumni
 
Join Date: Apr 2006
Rookie Year: 2006
Location: Indianapolis
Posts: 1,174
Qbranch has a reputation beyond reputeQbranch has a reputation beyond reputeQbranch has a reputation beyond reputeQbranch has a reputation beyond reputeQbranch has a reputation beyond reputeQbranch has a reputation beyond reputeQbranch has a reputation beyond reputeQbranch has a reputation beyond reputeQbranch has a reputation beyond reputeQbranch has a reputation beyond reputeQbranch has a reputation beyond repute
Re: 1711 Video demonstration

Quote:
Originally Posted by squirrel View Post
We were having trouble with air consumption, so we thought about how to set up the cylinders so that they only need air applied on one end, the other end is open and gravity or some other part of the robot pushes it back to starting position.
We are using this feature in our succsssful "Six-Shooter" trackball launcher. Only one piston has a return line which pulls the others back along with it. This also greatly increased efficiency as the high side of the other pistons is fully vented in the pre-firing condition.

-q
__________________
Electrical Engineer Illini
1024 | Programmer '06, '07, '08 | Driver '08

Last edited by Qbranch : 29-01-2008 at 23:39.
  #6   Spotlight this post!  
Unread 31-01-2008, 00:59
Furrah!! Furrah!! is offline
Registered User
FRC #1425
 
Join Date: Jan 2008
Location: Oregon
Posts: 8
Furrah!! is an unknown quantity at this point
Re: 1711 Video demonstration

Hmmmmm if you had some surgical tubing or some elastic material attach to the jaws to close then you would only need to use air to open them.
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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Team 1711 prototype 7-11number1 Robot Showcase 21 27-01-2008 21:50
pic: Robot Demonstration Bcahn836 Extra Discussion 4 29-07-2005 09:12
SkyDome demonstration on CityPulse Adi General Forum 3 12-02-2003 00:23
The Demonstration Animation mpking General Forum 20 08-01-2003 16:23


All times are GMT -5. The time now is 23:27.

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