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-   -   60 second set-up / pack-up time? (http://www.chiefdelphi.com/forums/showthread.php?t=134949)

Daniel_LaFleur 20-02-2015 16:25

Re: 60 second set-up / pack-up time?
 
Quote:

Originally Posted by Lil' Lavery (Post 1447761)
Why should a ball valve or butterfly valve be different than a needle valve?

Because the rules specifically allow flow control valves and do not mention butterfly or ball valves.

It's like the difference between non-skid and grip tape a few years ago.

Brandon_L 20-02-2015 16:49

Re: 60 second set-up / pack-up time?
 
Quote:

Originally Posted by Batterink (Post 1447613)
We had a similar pneumatic lockout problem. We solved it with a single acting solenoid. When the robot is disabled it "defaults" to a closed loop and vents the lines that run to the solenoids that run the cylinders, allowing us to disconnect the lines. When the robot is enabled, we enable the solenoid and it sends air to the system that has been attached.

Bumping this reply because poster has a valid solution that seems to have been looked over

Lil' Lavery 20-02-2015 16:53

Re: 60 second set-up / pack-up time?
 
We have an alternative solution ready, should our LRI disagree with our assessment of the rules. We don't own any single-acting solenoids, and that's a rather expensive way to solve an issue compared to a flow limiter.

Brandon_L 20-02-2015 16:58

Re: 60 second set-up / pack-up time?
 
Fair enough, I can see not wanting to spend money on it if you didn't have one laying around. You could also use a double if you had one laying around and just plug up one side.

GeeTwo 20-02-2015 17:49

Re: 60 second set-up / pack-up time?
 
Quote:

Originally Posted by dtengineering (Post 1447478)
I agree... but with their butterfly valve open (as it would be during the match) it would essentially be transparent to the rest of the system and the main pressure vent valve would be able to vent all the air pressure.

Another way to do this would be to use tubing to lead to the connector to the other part of the robot. Plug this connector while in transport configuration.

Using a clamp from your tool bag (not a part of the robot), clamp that piece of tubing, remove the plug, attach the other part of the robot, release the clamp, and put the clamp back in your tool bag.

At no time in this process was there any pressurized air that would not have been vented if the plug were opened. Of course, if you found a leak after you removed the clamp, you could have difficulties maintaining that state and still be pressurized at the start of the match.

rich2202 20-02-2015 18:39

Re: 60 second set-up / pack-up time?
 
I'm guessing that you need extra tubing to get to Transport Configuration.

When you are in Competition mode, can you make one or two loops of the excess tubing and secure it somewhere in the robot? A velcro strap would be quick.

EricH 20-02-2015 19:28

Re: 60 second set-up / pack-up time?
 
Quote:

Originally Posted by LeelandS (Post 1447502)
It has always been in the rules that delaying the competition in one way or another with result in penalties. It's in the rules that delaying a match AT ITS CONCLUSION (i.e. delaying field reset) may result in a yellow card. I would be surprised if delaying the start of a match didn't have similar results.

Actually, delaying the start doesn't quite have "similar" results. But having a robot sitting on the field in the way because the head ref signaled for it to be disabled isn't going to help your scoring. (And no, you can't remove it from the field without the head ref's permission. Sorry.) No card given in the match start delay.

FrankJ 20-02-2015 21:23

Re: 60 second set-up / pack-up time?
 
Quote:

Originally Posted by Lil' Lavery (Post 1447622)
Why is a flow control valve not allowed to limit the flow to 0? Can you specify a rule that says it may not? Are you saying that these are not legal, since they can also completely block flow?

I am not saying definitively that it is one way or the other. Search CD you will find many cases of similar gray areas like this being ruled differently at different compitetions.
The andymark one has an reverse flow check vavle so it is self venting. A good argument for it being legal.
Personaly I like Jon's suggestion the best. A quick release fitting has the flow, designed for the job, & where he is LRI, will probably pass unless Q&A says otherwise. :]

Doug Frisk 20-02-2015 23:50

Re: 60 second set-up / pack-up time?
 
Quote:

Originally Posted by Tanis (Post 1447565)
The head ref may not be watching the clock, but your FTA will call you out on it (and talk to the head ref) if it is causing a problem.

They will also be more strict as the regional progresses- you will probably have a bit of leeway on Thursday and going into Friday because the FTA(A) will be busy getting teams connected and making sure the field is in working order. Those problems start to go away on Friday though.

If you are still putting your robot together but all the robots are connected to the field and we are ready to go, then I will probably be talking to you about your setup time.

And you know I'll be talking to you about how far behind we are. :)

I will also be watching the clock and logging the teams that abuse the setup window. Without the FTAs and refs being strict on this, the cycle times are going to be horrible. At the week zero in Itasca last week, the cycle times averaged 10.8 minutes (yes, I counted) and I heard that the cycle times in New Hampshire were on the order of 10 minutes.

We cannot do that next week, it's not acceptable to be running 3 hours behind at the end of the day.

BethMo 28-02-2015 16:21

Re: 60 second set-up / pack-up time?
 
At the PNW Auburn Mountainview district event, we were running 2 hours behind schedule and they changed the rules, having teams go in and out of transport config while off the field. No penalties were ever called for delay, and some of the top teams were always taking over 60 seconds.

They said this was changed at multiple events and something should be coming out in next Tuesday's update.

MrJohnston 28-02-2015 16:39

Re: 60 second set-up / pack-up time?
 
Quote:

Originally Posted by BethMo (Post 1451154)
At the PNW Auburn Mountainview district event, we were running 2 hours behind schedule and they changed the rules, having teams go in and out of transport config while off the field. No penalties were ever called for delay, and some of the top teams were always taking over 60 seconds.

They said this was changed at multiple events and something should be coming out in next Tuesday's update.

Hmmm... We made design decisions that limited robot capabilities because we thought we'd have to play by the rule... Top teams should be able to follow it... I would be upset if we were eliminated by a team that didn't follow it and received a "pass."

Sperkowsky 28-02-2015 19:18

Quote:

Originally Posted by MrJohnston (Post 1451160)
Hmmm... We made design decisions that limited robot capabilities because we thought we'd have to play by the rule... Top teams should be able to follow it... I would be upset if we were eliminated by a team that didn't follow it and received a "pass."

Assuming we all followed the rules I'm happy with the change. As a drive team member even though all we had to do to switch configs was tighten and loosen 2 bolts I still had my fears.

Good change Imo but I understand the frustration.

Ken Best 10-03-2015 13:20

Re: 60 second set-up / pack-up time?
 
At MAR Mt Olive, There was a team that was always over 2:00, and at one time 2:26 for setup, after being warned. Their next match,, they were disabled. I'm not sure at what time allowance. Almost all teams were less than 1:00.. Yes, it does happen.

Koko Ed 10-03-2015 15:44

Re: 60 second set-up / pack-up time?
 
There were teams taking almost as long as 15 minutes to get their robot in the transport configuration in Toronto. That will not do.

Siri 10-03-2015 16:08

Re: 60 second set-up / pack-up time?
 
Quote:

Originally Posted by Ken Best (Post 1456036)
At MAR Mt Olive, There was a team that was always over 2:00, and at one time 2:26 for setup, after being warned. Their next match,, they were disabled. I'm not sure at what time allowance. Almost all teams were less than 1:00.. Yes, it does happen.

Technically, they were told at 1:00 (in that mach after repeated warnings) that they were at maximum time for robot configuration. They stopped assembling, but because of the state their robot was in at that time, they chose not to turn it on. They were not disabled by officials--because they had in fact stopped and thus didn't G10--and would've been allowed to play had they chosen to turn it on. This was explained to them pre-match (by me).

Lesson Learned: After that match, including into elims, they were right around 1:00 for configuration. In fact, no actual G10 disables were imposed at Mount Olive.

The interpretation of G10 at this event was that, "as a guideline, ROBOTS should be configurable in fewer than sixty (60) seconds" means robots should be designed to move in and and of transport configuration in approximately 60 seconds each. ~1:10 was not punished, nor were one-off/occasional violations (not 'designs'), nor was taking more time to do what teams do every year, e.g. align for autonomous. As above, teams would be asked to stop assembling at 60 seconds or be disabled. This only happened once and came after repeated warnings and two visits from inspectors looking to help them get faster. Teams and RIs stopped all other over-timers before they reached this point.

Our typical ons and offs were 2 minutes, and we finished 76 matches 15 minutes early running 7 minute intervals.


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