Go to Post FIRST is one strange world.... - Wayne C. [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

 
Closed Thread
Thread Tools Rate Thread Display Modes
  #1   Spotlight this post!  
Unread 01-03-2016, 10:40
dradel's Avatar
dradel dradel is offline
Registered User
FRC #4557 (Full Metal Falcons)
Team Role: Mentor
 
Join Date: Jan 2014
Rookie Year: 2013
Location: CT
Posts: 404
dradel is a splendid one to beholddradel is a splendid one to beholddradel is a splendid one to beholddradel is a splendid one to beholddradel is a splendid one to beholddradel is a splendid one to beholddradel is a splendid one to behold
Pneumatic update??

One of my students mentioned an update, but didn't have any info on what the update was about. I looked quickly this morning and all I could seem to find was something about a plug.
Anyone have any info about this? Seems as though we are required to put a plug in the system as well as a ball valve.
  #2   Spotlight this post!  
Unread 01-03-2016, 11:15
GeeTwo's Avatar
GeeTwo GeeTwo is offline
Technical Director
AKA: Gus Michel II
FRC #3946 (Tiger Robotics)
Team Role: Mentor
 
Join Date: Jan 2014
Rookie Year: 2013
Location: Slidell, LA
Posts: 3,564
GeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond reputeGeeTwo has a reputation beyond repute
Re: Pneumatic update??

The quarter-turn manual valve is named vent plug in the rules; no change there.

The change is in the interpretation of the requirements of the regulator. The first I saw of it was here. The bottom line is that the manufacturer's top recommended output pressure for the regulator must not exceed 60psi. Both of the regulators recommended in the rules are OK, but some other regulators which teams have used in the past are not.


Edit: Q910 was answered this morning, overriding the instructions given to inspectors referenced at the link above.

And the "vent plug" or "plug valve" is the item at the lower left of the picture. The two items at the bottom of the middle column are plugs, but not vent plugs or plug valves.
__________________

If you can't find time to do it right, how are you going to find time to do it over?
If you don't pass it on, it never happened.
Robots are great, but inspiration is the reason we're here.
Friends don't let friends use master links.

Last edited by GeeTwo : 01-03-2016 at 12:28.
  #3   Spotlight this post!  
Unread 01-03-2016, 11:18
dradel's Avatar
dradel dradel is offline
Registered User
FRC #4557 (Full Metal Falcons)
Team Role: Mentor
 
Join Date: Jan 2014
Rookie Year: 2013
Location: CT
Posts: 404
dradel is a splendid one to beholddradel is a splendid one to beholddradel is a splendid one to beholddradel is a splendid one to beholddradel is a splendid one to beholddradel is a splendid one to beholddradel is a splendid one to behold
This is what I found and made me scratch my head.
https://firstfrc.blob.core.windows.n...ticsManual.pdf
Click image for larger version

Name:	ImageUploadedByTapatalk1456849345.516955.jpg
Views:	78
Size:	88.5 KB
ID:	20230
  #4   Spotlight this post!  
Unread 01-03-2016, 11:22
FrankJ's Avatar
FrankJ FrankJ is offline
Robot Mentor
FRC #2974 (WALT)
Team Role: Mentor
 
Join Date: Feb 2011
Rookie Year: 2009
Location: Marietta GA
Posts: 1,899
FrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond repute
Re: Pneumatic update??

Actually Q&A has just ruled that the adjustable regulator need to be set at 60 psi max. The range may be higher.

[quote] Q. Is the intent of R77I to limit teams to only using Pressure regulators with a published operating range of less than 60 PSI, or is this meant to allow regulators with an operating range above 60 PSI provided they are adjusted such that the working pressure is at or below 60PSI?
2016-02-27 by FRC2056
A. The meaning of R77-I was unclear, sorry about that. It will be revised in Team Update 14 to allow pressure regulators with the outlet pressure adjusted to 60 psi or less. Regulators with an operating range above 60 psi will be allowed provided they are adjusted to no more than 60 psi. [/quote
__________________
If you don't know what you should hook up then you should read a data sheet
  #5   Spotlight this post!  
Unread 01-03-2016, 11:23
Michael Corsetto's Avatar
Michael Corsetto Michael Corsetto is offline
Breathe in... Breathe out...
FRC #1678 (Citrus Circuits)
Team Role: Mentor
 
Join Date: May 2004
Rookie Year: 2002
Location: Davis, CA
Posts: 1,130
Michael Corsetto has a reputation beyond reputeMichael Corsetto has a reputation beyond reputeMichael Corsetto has a reputation beyond reputeMichael Corsetto has a reputation beyond reputeMichael Corsetto has a reputation beyond reputeMichael Corsetto has a reputation beyond reputeMichael Corsetto has a reputation beyond reputeMichael Corsetto has a reputation beyond reputeMichael Corsetto has a reputation beyond reputeMichael Corsetto has a reputation beyond reputeMichael Corsetto has a reputation beyond repute
Re: Pneumatic update??

Quote:
Originally Posted by GeeTwo View Post
The quarter-turn manual valve is named vent plug in the rules; no change there.

The change is in the interpretation of the requirements of the regulator. The first I saw of it was here. The bottom line is that the manufacturer's top recommended output pressure for the regulator must not exceed 60psi. Both of the regulators recommended in the rules are OK, but some other regulators which teams have used in the past are not.

This is not correct.
__________________
Team 1678: Citrus Circuits - Lead Technical Mentor, Drive Coach **Like Us On Facebook!**
  #6   Spotlight this post!  
Unread 01-03-2016, 11:25
FrankJ's Avatar
FrankJ FrankJ is offline
Robot Mentor
FRC #2974 (WALT)
Team Role: Mentor
 
Join Date: Feb 2011
Rookie Year: 2009
Location: Marietta GA
Posts: 1,899
FrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond repute
Re: Pneumatic update??

Quote:
Originally Posted by dradel View Post
This is what I found and made me scratch my head.
https://firstfrc.blob.core.windows.n...ticsManual.pdf
Attachment 20230
That is design guidance. They publish it ever year. It is not part of the rules so when in conflict the published rules govern.
__________________
If you don't know what you should hook up then you should read a data sheet
  #7   Spotlight this post!  
Unread 01-03-2016, 11:34
dradel's Avatar
dradel dradel is offline
Registered User
FRC #4557 (Full Metal Falcons)
Team Role: Mentor
 
Join Date: Jan 2014
Rookie Year: 2013
Location: CT
Posts: 404
dradel is a splendid one to beholddradel is a splendid one to beholddradel is a splendid one to beholddradel is a splendid one to beholddradel is a splendid one to beholddradel is a splendid one to beholddradel is a splendid one to behold
The part that threw me off was the mention of the plug. The way it is written makes it seem as though we must use the plug.
The only thing I could think was did they mean to say you have to use the 1/4 turn ball valve? And then use the wrong picture.
  #8   Spotlight this post!  
Unread 01-03-2016, 11:56
FrankJ's Avatar
FrankJ FrankJ is offline
Robot Mentor
FRC #2974 (WALT)
Team Role: Mentor
 
Join Date: Feb 2011
Rookie Year: 2009
Location: Marietta GA
Posts: 1,899
FrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond reputeFrankJ has a reputation beyond repute
Re: Pneumatic update??

Quote:
Originally Posted by dradel View Post
The part that threw me off was the mention of the plug. The way it is written makes it seem as though we must use the plug.
The only thing I could think was did they mean to say you have to use the 1/4 turn ball valve? And then use the wrong picture.
R77 b
Quote:
B. Pneumatic pressure vent plug valves functionally equivalent to those provided in the KOP,
Parker valves PV609-2 or MV709-2 are recommended.
Is the controlling rule. Pretty much any quarter turn valve is functionally equivalent. We use ones from Automation Direct because they are more convenient than finding the parker one. (I know Andymark has them, but AD is next day for me.)
__________________
If you don't know what you should hook up then you should read a data sheet
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 05:41.

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