Go to Post The Pet Rock was very original, but not necessarily a great thing. - IKE [more]
Home
Go Back   Chief Delphi > Technical > Pneumatics
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
 
 
Thread Tools Rating: Thread Rating: 3 votes, 5.00 average. Display Modes
Prev Previous Post   Next Post Next
  #43   Spotlight this post!  
Unread 30-03-2004, 14:52
FadyS.'s Avatar
FadyS. FadyS. is offline
Registered User
AKA: Fady Samuel
#1246 (Agincourt Robotics)
Team Role: Programmer
 
Join Date: Sep 2003
Location: Toronto
Posts: 35
FadyS. is on a distinguished road
Re: Mulit-postioning with pnuematics this year?

Quote:
Originally Posted by pras870
I've actually been looking for a way to do this for the past 2 years. I have a pretty firm grasp on pnuematics from the past 2 years, but I still fail to see how this could be done

I've also found, that amazingly, pneumatics actually weigh less then a motor driven assembly. Our team has always seemed to have a weight problem, and I'm always looking for a way to incorporate pneumatics instead of motor driven for the fact that they weigh less and are actually more reliable, but I've always been under the assumption, with the materials first gives us, you can only open and close a cylinder in 2 positions (full and closed).
Our team has been successfully able to get a multi-positioning system working for our arm using the pneumatics hook up talked about here.

We use the following bit of code for the positioning system:

Code:
	// Position Control System (PCS) of arm
	if( p3_sw_aux1 == 1 )
	{
		// Open arm
		relay5_fwd = 1;
		relay5_rev = 0;
		relay6_fwd = 1;
	}
	else if( p3_sw_aux2 == 1 )
	{
		// Close arm
		relay5_fwd = 0;
		relay5_rev = 1;
		relay6_fwd = 1;
	}
	else
	{
		relay6_fwd = 0;
	}
EDIT: Relay5 = double solenoid valve
Relay 6 = Single solenoid exhaust valve.

We use this setup along with the SMC speed controllers to slow down the opening and closing of the arm and stop it when we close the exhaust valve.
 


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
Championship Qualification - How you would've done it Ken Leung Championship Event 6 26-10-2003 14:00
Problems with this year... and a solution? archiver 2001 2 24-06-2002 03:23
Wow! what a year archiver 2000 8 23-06-2002 22:43
why why why...? archiver 2001 34 23-06-2002 22:13
Making heads or tails of the new announcement... Jessica Boucher General Forum 66 26-09-2001 11:13


All times are GMT -5. The time now is 15:01.

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