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#1
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Pre-filling stored air
We are looking at having alot of tanks on our bot this year. Can we fill our tanks before tbe match? We are hoping to complete this by using an external battery to power our on board compresser, then plug it back into the pcm (we are connecting it with anderson connectors). Is this legal or should we ask the q&a?
Let us know, FRC Team 2906 |
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#2
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Re: Pre-filling stored air
You can pre-fill your tanks, but not by bypassing the control system like you proposed. Just connect your robot to your driver station via ethernet cable in your pit, enable the robot until the compressor shuts off, then put in a fresh battery. Just make sure you aren't set to run autonomous when you enable.
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#3
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Re: Pre-filling stored air
That definitely isn't legal by R85. You can only power the compressor through the robot control system. If you have an onboard compressor you can just enable your bot in queue, though.
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#4
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Re: Pre-filling stored air
Quote:
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#5
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Re: Pre-filling stored air
You cannot bypass the control system to use the compressor like others have stated but is legal to use a different battery and pre-charge your air tanks
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#6
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Re: Pre-filling stored air
Also R84 "one and only one compressor". If you have a compressor on the robot, then that is the only compressor you can use, including pre-fill.
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#7
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Re: Pre-filling stored air
What about a bike pump / foot pump and a schrader fitting? can that be used to fill the tank in queue rather than enabling the robot?
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#8
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Re: Pre-filling stored air
That would mean the ROBOT would get compressed air from a source other than the one compressor, which violates R84.
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#9
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Re: Pre-filling stored air
I'd also note that by "another battery" that should be another legal FRC battery, through a standard battery connector, etc.
The whole point of this portion of the pneumatics rules is to mostly limit the stored power on the robot to what's supplied by the ONE legal battery powering the ONE legal compressor. Onboard or offboard compressor, airing up your robot should be exactly like it was running an onboard compressor on the field during a match. Ask yourself if what you're doing is something that'd be legal during a match, minus size/weight constraints for an off-board compressor. If it's not legal during a match, it's not legal in your pit in prep for a match. This means you should think about your air consumption and how well your system would work with a 6 minute field timeout between Finals matches. If you can't fill your tanks from empty or end of match level to full enough in 5 minutes, you're using too much air. |
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#10
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Re: Pre-filling stored air
As others have stated, charging your pneumatic system with anything other than that provided by the rules could result in any decision by event Chief volunteers. If stored air is important to your strategy then do not risk it by charging your system by any method other than that provided in the robot rules.
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#11
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Re: Pre-filling stored air
RTM
Quote:
Quote:
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#12
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Re: Pre-filling stored air
I think "one and only one compressor" is ambiguous and so we're going to use 3 or 4 of them. And a foot pump.
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#13
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Re: Pre-filling stored air
You can only use a different legal battery if it is the only battery in the robot, powering it as it would be during a match. As others have said, this should be done before you swap batteries.
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#14
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Re: Pre-filling stored air
FIRST ought to just supply an air compressor field side at the queue which each team can use to fill their tanks. This would solve what is always a problem every year with teams misunderstanding the rules. Would cost $300 per field.
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#15
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Re: Pre-filling stored air
I second this notion. Even though its not going to happen this year. *crosses fingers*
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